Bombyliidae
Guides
Acreophthiria
Acreophthiria is a genus of bee flies in the family Bombyliidae, established by Evenhuis in 1986. It belongs to the subfamily Phthiriinae and tribe Phthiriini. The genus is known from the Neotropical region, with species documented primarily from Brazil. As with other bombyliids, members are likely parasitoids, though specific host associations remain poorly documented.
Aldrichia auripuncta
Aldrichia auripuncta is a species of bee fly in the family Bombyliidae, first described by Painter in 1940. It is known from the northeastern United States. As a member of Bombyliidae, it likely exhibits the family-characteristic parasitoid lifestyle, though specific details for this species remain limited.
Amphicosmus
Amphicosmus is a genus of bee flies (family Bombyliidae) containing five described species. The genus was established by Coquillett in 1891 and is classified within the subfamily Tomomyzinae. Members of this genus share the general characteristics of bee flies, including a parasitoid life history strategy. The genus is poorly documented in scientific literature, with limited species-level descriptions and biological data available.
Amphicosmus arizonensis
Amphicosmus arizonensis is a species of bee fly in the family Bombyliidae. It was described by Johnson & Johnson in 1960 and is known from Arizona. As a member of the bee fly family, it belongs to a group of true flies that are often mistaken for bees due to their morphological adaptations for pollination. The species is currently accepted as valid, though it has been treated as a synonym of Amphicosmus vanduzeei in some classifications.
Amphicosmus elegans
Amphicosmus elegans is a species of bee fly in the family Bombyliidae, described by Coquillett in 1891. It belongs to the subfamily Tomomyzinae and is placed in the genus Amphicosmus. The species is known from limited records, with only one observation documented in iNaturalist. Bee flies in this family are generally characterized by their stout, hairy bodies and long proboscises adapted for nectar feeding.
Anastoechus barbatus
Anastoechus barbatus is a species of bee fly in the family Bombyliidae, distributed across much of North America. The species occurs from the Yukon east to Ontario in Canada, and across most of the United States from Massachusetts west to California and Texas, though it is absent from the southeastern United States. Its larvae are predators of grasshopper eggs, representing an important biological control mechanism.
Anthracini
Anthracini is a tribe of bee flies within the family Bombyliidae, subfamily Anthracinae. The tribe contains at least nine genera, with Anthrax being the most species-rich and well-studied. Members are primarily known as parasitoids, with larvae developing on or within host insects. The Australian fauna has been extensively revised, revealing substantial cryptic species diversity previously hidden under single species names.
Anthrax artemesia
Anthrax artemesia is a species of bee fly in the family Bombyliidae, described by Marston in 1963. It belongs to the genus Anthrax, a diverse group of parasitoid flies whose larvae develop as ectoparasites on various host insects. Most Anthrax species for which hosts are known parasitize the larvae of ground-nesting Hymenoptera or, in some cases, tiger beetle larvae (Cicindelidae). The specific biology of A. artemesia remains poorly documented compared to better-studied congeners such as A. analis and A. georgicus.
Anthrax aterrimus
Anthrax aterrimus is a bee fly in the family Bombyliidae, subfamily Anthracinae. The larval stage has been documented as an external parasite on the pre-pupal or pupal stages of the mason wasp Monobia quadridens. As with other members of the genus Anthrax, adults likely visit flowers for nectar. The species was described by Bigot in 1892.
Anthrax atriplex
Anthrax atriplex is a species of bee fly in the family Bombyliidae, described by Marston in 1970. Members of the genus Anthrax are parasitoid flies whose larvae develop on or within host insects. The genus is notably associated with tiger beetle larvae (Cicindelinae) and other ground-nesting insects. Adult bee flies typically visit flowers for nectar and serve as pollinators, though their larval biology involves parasitism of other arthropods.
Anthrax cintalpa
Anthrax cintalpa is a species of bee fly in the family Bombyliidae. Like other members of the genus Anthrax, it is a parasitoid whose larvae develop on or within the bodies of other insects. The genus Anthrax is notable for including species that parasitize tiger beetle larvae (Cicindelidae), solitary bees, and other ground-nesting insects. Adults are typically seen visiting flowers for nectar.
Anthrax daphne
Anthrax daphne is a species of bee fly in the family Bombyliidae, described by Osten Sacken in 1886. As a member of the genus Anthrax, it likely shares the parasitoid lifestyle typical of the group, with larvae that attack immature stages of other insects. Adults are presumably nectar-feeding and may exhibit bee-mimicking appearance and behavior common to bee flies.
Anthrax georgicus
Tiger Bee Fly
Anthrax georgicus is a bee fly species in the family Bombyliidae, distributed across eastern and central North America. Adults are active in spring and are known for their parasitoid relationship with tiger beetle larvae (Cicindelidae), specifically attaching externally to host larvae and consuming them as they develop. The species was previously known as Anthrax analis but is now recognized as A. georgicus based on taxonomic revision.
Anthrax irroratus
Spotted Bee Fly
Anthrax irroratus is a bee fly (family Bombyliidae) widespread across North America, ranging from Alaska and northern Canada to Central America and the Caribbean. Adults are pollinators that frequent flowers, while larvae are parasitoids of solitary bees and wasps in at least five families. The species is one of numerous bee flies that exploit ground-nesting Hymenoptera as hosts.
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larrea
Anthrax larrea is a species of bee fly in the family Bombyliidae, described by Marston in 1963. It is recorded from the United States. As a member of the genus Anthrax, it likely shares the general biology of related species, which are parasitoids of various insect larvae, though specific host associations for this species remain undocumented.
Anthrax striatipennis
Anthrax striatipennis is a species of bee fly in the family Bombyliidae, described by Marston in 1970. It is recorded from the southeastern United States. As a member of the genus Anthrax, it likely shares the parasitoid life history typical of the genus, where larvae develop as ectoparasites on other insects.
Anthrax varicolor
Anthrax varicolor is a species of bee fly (family Bombyliidae) in the subfamily Anthracinae. The genus Anthrax comprises parasitoid flies whose larvae are known to attack various host insects. Most Anthrax species are parasitoids of ground-nesting insects, including solitary bees and tiger beetle larvae. Adults are typically observed visiting flowers for nectar.
Anthrax vierecki
Anthrax vierecki is a species of bee fly in the family Bombyliidae, first described by Cresson in 1919. As a member of the genus Anthrax, it belongs to a group of parasitoid flies whose larvae are known to attack the larvae of other insects, including tiger beetles and solitary bees. The genus is characterized by distinctive wing venation and parasitic life history strategies.
Aphoebantini
Aphoebantini is a tribe of bee flies (family Bombyliidae) comprising approximately 5 genera and at least 80 described species. Members are classified within the subfamily Anthracinae. The tribe includes genera such as Aphoebantus, Cononedys, Epacmus, Eucessia, and Pteraulax. As with other bee flies, adults likely function as pollinators and larvae are presumed parasitoids, though specific life histories remain poorly documented for most species.
Aphoebantus
bee flies
Aphoebantus is a genus of bee flies (family Bombyliidae) containing at least 80 described species. The genus was established by Loew in 1872 and is classified within the subfamily Anthracinae and tribe Aphoebantini. Some taxonomic authorities consider Epacmus to be a synonym or subset of Aphoebantus rather than a distinct genus. The genus is characterized by small, fuzzy bee flies that exhibit potential predator mimicry of jumping spiders.
Aphoebantus conurus
Aphoebantus conurus is a species of bee fly in the family Bombyliidae, first described by Osten Sacken in 1887. It belongs to the subfamily Anthracinae and tribe Aphoebantini. The genus Aphoebantus includes species that may exhibit predator mimicry, with some members displaying posterior thoracic markings resembling jumping spider eyes. Field observations indicate this species occurs in juniper woodland habitats in the southwestern United States.
Aphoebantus fumosus
Aphoebantus fumosus is a species of bee fly in the family Bombyliidae, first described by Coquillett in 1892. The genus Aphoebantus belongs to the subfamily Anthracinae and tribe Aphoebantini. Some authorities have suggested that the genus Epacmus may represent a subset of Aphoebantus rather than a distinct genus. The species has been documented in western North America, with observations in juniper woodland habitats in New Mexico.
Aphoebantus interruptus
Aphoebantus interruptus is a species of bee fly (family Bombyliidae) described by Coquillett in 1891. The genus Aphoebantus belongs to the subfamily Anthracinae and tribe Aphoebantini. Some authorities have suggested that the genus Epacmus may be a synonym of Aphoebantus rather than a distinct genus. As with other bee flies, adults are likely nectar feeders, but detailed biological information for this species remains limited.
Aphoebantus leucospilus
Aphoebantus leucospilus is a species of bee fly described by Tabet and Hall in 1987. The genus Aphoebantus belongs to the family Bombyliidae, a diverse group of flies commonly known as bee flies due to their frequent resemblance to bees. Bee flies are generally characterized by their stout, hairy bodies and long proboscises adapted for feeding on nectar. The specific epithet "leucospilus" suggests a white-spotted appearance, though this interpretation is speculative without direct examination of type material.
Aphoebantus mus
bee fly
Aphoebantus mus is a species of bee fly (family Bombyliidae) first described by Osten Sacken in 1877. As a member of the tribe Aphoebantini, it belongs to a group of small, often inconspicuous bee flies. The genus Aphoebantus has been subject to taxonomic revision, with some authorities suggesting that the genus Epacmus may represent a subset of Aphoebantus rather than a distinct genus. The species has been documented in field observations in juniper woodland habitats in the southwestern United States.
Aphoebantus rattus
Aphoebantus rattus is a species of bee fly (family Bombyliidae) in the subfamily Anthracinae, described by Osten Sacken in 1887. The genus Aphoebantus is part of the tribe Aphoebantini, a group of small, often inconspicuous bee flies. Species in this genus are poorly documented in the literature, with limited biological information available. The genus has been subject to taxonomic uncertainty, with at least one authority suggesting that Epacmus may be a synonym of Aphoebantus rather than a distinct genus.
Aphoebantus scalaris
Aphoebantus scalaris is a species of bee fly (family Bombyliidae) first described by Melander in 1950. The genus Aphoebantus belongs to the subfamily Anthracinae and tribe Aphoebantini. Some authorities have suggested that the genus Epacmus may represent a subset of Aphoebantus rather than a distinct genus.
Apolysis
Apolysis is a genus of bee flies (family Bombyliidae) established by Loew in 1860, containing at least 120 described species. The genus belongs to the subfamily Usiinae and tribe Apolysini. Bee flies in this genus are parasitoids or predators with life histories typical of the Bombyliidae family. The genus name derives from the Greek term for separation or discharge, though this etymological connection to the molting process is coincidental rather than biological.
Apolysis sigma
Apolysis sigma is a species of bee fly in the family Bombyliidae, subfamily Usiinae. It was described by Coquillett in 1902 and is known to be widespread across North America. The genus Apolysis belongs to the tribe Apolysini, a group of bee flies characterized by specific morphological features related to their parasitoid lifestyle.
Asiloidea
asiloid flies
Asiloidea is a large superfamily of true flies (Diptera: Brachycera) with cosmopolitan distribution. It comprises approximately 11 families including the well-known Asilidae (robber/assassin flies), Bombyliidae (bee flies), Therevidae (stiletto flies), Mydidae (mydas flies), and Scenopinidae (window flies). Adult morphology is characterized by antennae with no more than 4 flagellomeres, leg empodium usually setiform or absent, and wing venation featuring an elongate cell cup with vein CuA2 ending freely or meeting A1 near the wing margin. Larval synapomorphies include posterior spiracles arising dorsally from the penultimate abdominal segment and, in most families except Bombyliidae and Hilarimorphidae, a modified cranium forming a hinged metacephalic rod.
DipteraBrachyceraAsiloidearobber-fliesbee-fliesstiletto-fliesmydas-flieswindow-fliescosmopolitanarid-habitatspredatory-larvaeflower-visitorsparasitoidsbiological-controlAsilidaeBombyliidaeTherevidaeMydidaeScenopinidaeApioceridaeApsilocephalidaeApystomyiidaeEvocoidaeHilarimorphidaeMythicomyiidaeProtapioceridaephylogenysystematicsvenomouspredatorymystaxmetacephalic-roddichopticholopticJurassicCretaceoustherevoid-cladeNamib-DesertCanary-IslandsSaudi-ArabiaDominicaChileGermanyfossilcybertaxonomyopen-accessZooKeysBohart-MuseumWorld-Robber-Fly-DayAstrophanes adonis
Astrophanes adonis is a species of bee fly in the family Bombyliidae, subfamily Anthracinae. It is native to western North America, with a range extending from British Columbia, Canada south to Mexico and east to Kansas. The species was described by Osten Sacken in 1886.
Bombyliinae
bee flies
Bombyliinae is a large subfamily of bee flies (family Bombyliidae) comprising more than 70 genera and at least 170 described species. Adults are important pollinators, while larvae are parasitoids. The subfamily has a cosmopolitan distribution across all continents except Antarctica, with notable diversity in Australia (17 genera, 87 species) and the Neotropics.
Bombyliini
bee flies
Bombyliini is a tribe of bee flies within the family Bombyliidae, characterized by adults that are typically active in spring and exhibit bee-mimicking morphology. Members of this tribe are distinguished from the related tribe Systoechini primarily by wing venation, specifically the position of the r-m vein. The genus Bombylius is the best-known representative, with species such as B. mexicanus occurring in North America. Adults are nectar feeders, while larvae are parasitoids of various insects including tiger beetle larvae (Cicindelidae).
Bombylius albicapillus
White-headed Bee Fly
Bombylius albicapillus is a species of bee fly in the family Bombyliidae, occurring in western North America. As a member of the tribe Bombyliini, it shares the characteristic bee-mimicking appearance common to this group. The species name "albicapillus" (white-headed) refers to a distinctive pale coloration on the head. Like other Bombylius species, adults are likely active in spring and associated with flowers, though specific biological details remain poorly documented.
Bombylius anthophilus
Bombylius anthophilus is a species of bee fly in the family Bombyliidae. The species has been documented in association with the nests and pupal casings of Habropoda depressa bees, indicating a parasitic relationship with this host. Like other members of the genus Bombylius, it likely exhibits the characteristic hovering flight behavior and elongated proboscis typical of bee flies. The species was described by Evenhuis in 1983.
Bombylius ater
Bombylius ater is a species of bee fly in the family Bombyliidae, originally described by Scopoli in 1763. The species is currently recognized as a synonym of Bombylella atra, though it was historically placed in the genus Bombylius. Bee flies in this group are characterized by their hairy bodies, long proboscises for nectar feeding, and parasitic larval stages. The genus Bombylius includes species that are active primarily in spring and are known for their hovering flight behavior.
Bombylius atriceps
Bombylius atriceps is a species of bee fly in the family Bombyliidae, described by Loew in 1863. The genus Bombylius is characterized by adults that are typically active in spring, with members of this tribe exhibiting hovering behavior and elongated mouthparts adapted for nectar feeding. Larval stages of Bombylius species are known to be parasitoids of solitary bees, with females depositing eggs near or into host burrows.
Bombylius breviabdominalis
Bombylius breviabdominalis is a species of bee fly in the family Bombyliidae, described by Evenhuis in 1977. As a member of the genus Bombylius, it belongs to a group of flies known for their bee-like appearance and parasitic larval life history. The species epithet "breviabdominalis" refers to its relatively short abdomen. Information specific to this species is limited, though it shares general characteristics with other Bombylius species including a furry body, long proboscis for nectar feeding, and parasitic larvae that develop in the nests of solitary bees.
Bombylius coquilletti
Bombylius coquilletti is a species of bee fly in the family Bombyliidae. The genus Bombylius contains numerous species of bee flies that are parasitic in their larval stages, typically attacking solitary bees. Adult bee flies are important pollinators that visit flowers for nectar. This species was described by Williston in 1899.
Bombylius curtirhynchus
Bombylius curtirhynchus is a species of bee fly in the family Bombyliidae, first described by Evenhuis in 1978. The genus Bombylius comprises approximately 350 species distributed across the Holarctic region, with many species exhibiting the characteristic fuzzy appearance and hovering flight behavior typical of bee flies. Species in this genus are generally spring-active and possess elongated mouthparts adapted for nectar feeding.
Bombylius fraudulentus
Bombylius fraudulentus is a species of bee fly in the family Bombyliidae, described by Johnson in 1907. The species belongs to the genus Bombylius, a group of bee flies known for their bee-like appearance and parasitic larval life histories. As with most members of this genus, adults are likely active in spring and are associated with flowers where they feed on nectar. The larval biology of this specific species remains undocumented, though related Bombylius species are known to parasitize solitary bees.
Bombylius fulvibasoides
Bombylius fulvibasoides is a species of bee fly in the family Bombyliidae, described by Painter in 1962. As a member of the genus Bombylius, it shares the characteristic bee-mimicking appearance and hovering flight behavior typical of this diverse group of parasitoid flies. The species epithet "fulvibasoides" suggests tawny or yellowish-brown coloration on the basal portions of the body or appendages. Like other Bombylius species, adults are likely flower visitors that feed on nectar using elongated mouthparts, while larvae are presumed to be parasitoids of other insects.
Bombylius heximaculatus
Bombylius heximaculatus is a species of bee fly in the family Bombyliidae, described by Johnson & Johnson in 1975. Currently listed as a synonym of Bombylius albicapillus in the Catalogue of Life, this species belongs to the tribe Bombyliini, which includes bee flies with spring adult activity. Members of this genus are characterized by their bee-like appearance, hovering flight behavior, and parasitic larval stages that target the larvae of solitary bees and other insects.
Bombylius incanus
bee fly
Bombylius incanus is a species of bee fly in the family Bombyliidae, first described by Johnson in 1907. The genus Bombylius is one of the most recognizable bee fly genera, with adults typically active in spring and characterized by their fuzzy, bee-like appearance and hovering flight behavior. Like other members of the genus, B. incanus likely exhibits the "bombing" egg-laying behavior where females flick eggs into host burrows. The species has been recorded from the northeastern United States, particularly Vermont.
Bombylius iphiculus
Bombylius iphiculus is a species of bee fly (family Bombyliidae) described by Hall and Evenhuis in 1981. Like other members of the genus Bombylius, it belongs to a group of flies that are bee mimics with notably long proboscises for nectar feeding. The species is part of the tribe Bombyliini, which contains species typically active as adults in spring. Very little specific information is available for this particular species, and most knowledge must be inferred from the broader genus and family characteristics.
Bombylius mohavensis
Bombylius mohavensis is a species of bee fly in the family Bombyliidae, described by Evenhuis in 1975. The genus Bombylius includes species known for their bee-like appearance, hovering flight behavior, and parasitic larval biology. Members of this genus typically have elongated proboscises adapted for nectar feeding and exhibit spring activity patterns. The specific epithet 'mohavensis' suggests an association with the Mojave Desert region.
Bombylius pulchellus
Beautiful Bee Fly
Bombylius pulchellus is a species of bee fly in the family Bombyliidae, distributed across northern North America from Canada to the northern United States. Adults are active in spring and are known for their parasitoid relationship with the sweat bee Halictus ligatus, whose larvae and pupae they consume. Unlike many bee flies, B. pulchellus pupates in soil away from the host nest rather than within it.
Bombylius pulcher
Bombylius pulcher is a species of bee fly in the family Bombyliidae, described by Painter in 1926. Like other members of the genus Bombylius, it likely exhibits the characteristic bee-like appearance and hovering flight behavior typical of this diverse family of parasitoid flies. The species is distinguished from congeners by specific morphological features, though detailed biological studies remain limited.
Bombylius pygmaeus
Pygmy Bee Fly
Bombylius pygmaeus is a small species of bee fly in the family Bombyliidae, commonly known as the Pygmy Bee Fly. The species was described by Fabricius in 1781 and is currently recognized as a valid species. It is reported from North America (Canada and the United States) and also from China, though details of its biology remain poorly documented. As a member of the genus Bombylius, it likely shares the general life history pattern of parasitism on solitary bee larvae, but specific host associations have not been established.
Bombylius varius
Bombylius varius is a species of bee fly in the family Bombyliidae, first described by Fabricius in 1805. Like other members of the genus Bombylius, it is likely a parasitoid of solitary bee larvae, though specific host records for this species are not well documented. The species is recognized as valid in current taxonomic databases, though detailed biological studies appear limited in the available literature.
Bryodemina
Bryodemina is a genus of bee flies (Diptera: Bombyliidae) in the subfamily Lomatiinae, established by Hull in 1973. The genus occurs in the Neotropical region and was recently revised with two new species described from Brazil and Venezuela. A taxonomic revision synonymized the genus Brachydemia with Bryodemina. Species in this genus are distinguished by morphological features of the adult external anatomy and terminalia.
Bryodemina valida
Bryodemina valida is a species of bee fly in the family Bombyliidae, first described by Wiedemann in 1830. It belongs to the subfamily Lomatiinae and tribe Lomatiini. The species has been documented through 51 observations on iNaturalist, indicating some level of contemporary detection, though detailed biological information remains limited in publicly available sources.
Chrysanthrax cypris
Chrysanthrax cypris is a species of bee fly in the family Bombyliidae. It occurs in the eastern United States from Massachusetts and Iowa south to Mexico. The species is a parasitoid of tiphiid wasps. Adults are active pollinators that visit flowers for nectar.
Chrysanthrax dispar
Chrysanthrax dispar is a species of bee fly in the family Bombyliidae. It occurs across eastern North America from Ontario, Canada, through the eastern United States west to Nebraska, and south to Mexico. The species is part of a diverse genus of bee flies, with adults typically observed visiting flowers.
Chrysanthrax juncturus
Chrysanthrax juncturus is a bee fly species in the family Bombyliidae, distributed in the southwestern United States and Mexico. As a member of this diverse fly family, it likely shares the characteristic bee-mimicking appearance and parasitic larval lifestyle typical of many bombyliids, though specific details for this species remain poorly documented.
Conophorini
bee flies
Conophorini is a tribe of bee flies within the family Bombyliidae, established by Becker in 1913. The tribe comprises at least 30 described species distributed across four genera: Aldrichia, Conophorina, Conophorus, and Sparnopolius. Members of this tribe are parasitoid flies whose larvae develop in the nests of solitary bees and wasps. Conophorini species are found primarily in the Nearctic and Palearctic regions.
Conophorus
bee flies
Conophorus is a genus of bee flies (family Bombyliidae) containing at least 67 described species worldwide, with 16 species recorded from the United States. These dipterans are parasitoids, with larvae developing in the nests of other insects. The genus is taxonomically established under Meigen, 1803, and is classified within the tribe Conophorini.
Conophorus collini
Conophorus collini is a species of bee fly in the family Bombyliidae, described by Priddy in 1958. The species belongs to the genus Conophorus, which is classified within the tribe Conophorini. As with other bee flies, it is a member of the order Diptera, characterized by having a single pair of functional wings. The species is recognized as valid and accepted in taxonomic databases.
Conophorus fallax
Conophorus fallax is a species of bee fly in the family Bombyliidae. It is distributed across western North America, from the Yukon and Saskatchewan in Canada southward through the United States to New Mexico and California. Like other members of the genus Conophorus, this species likely exhibits the characteristic bee fly morphology with a humpbacked thorax and elongated proboscis.
Conophorus melanoceratus
Conophorus melanoceratus is a species of bee fly described by Bigot in 1892. It belongs to the genus Conophorus within the subfamily Bombyliinae. The species is rarely documented, with only three observations recorded on iNaturalist. Like other bee flies, it is presumed to have a parasitoid life cycle, though specific host associations remain unconfirmed.
Desmatoneura
Desmatoneura is a genus of bee flies (family Bombyliidae) established by Williston in 1895. The genus comprises approximately 18 described species classified within the subfamily Anthracinae and tribe Xeramoebini. Species in this genus are part of the diverse bee fly fauna, a group known for parasitoid larval development in other insects.
Desmatoneura argentifrons
Desmatoneura argentifrons is a species of bee fly (family Bombyliidae) in the subfamily Anthracinae and tribe Xeramoebini. It was described by Williston in 1895. The species is known from the western United States, particularly the Great Basin region. Like other bee flies, adults are nectar feeders and larvae are presumed to be parasitoids.
Dicranoclista
Dicranoclista is a genus of bee flies (family Bombyliidae) comprising four described species distributed disjunctly across North America and Africa. The genus was established by Bezzi in 1924 and belongs to the subfamily Anthracinae. Species occur in diverse habitats from the western United States and Canada to West Africa and Sudan.
Dicranoclista fasciata
Dicranoclista fasciata is a species of bee fly in the family Bombyliidae, first described by Johnson & Johnson in 1960. It belongs to the subfamily Anthracinae and tribe Anthracini. The species is documented from the western United States and adjacent Canada, with records spanning from Arizona northward to Washington and British Columbia. As with other bee flies, adults likely function as pollinators and larvae are presumed parasitoids, though specific biological details remain poorly documented.
Diochanthrax
Diochanthrax is a monotypic genus of bee flies (family Bombyliidae) containing a single described species, D. morulus, which is endemic to California. The genus was established by Hall in 1975 and belongs to the subfamily Anthracinae and tribe Villini. As a bee fly, it likely exhibits the parasitoid life history typical of many Bombyliidae, though specific biological details remain poorly documented.
Dipalta
Dipalta is a North American genus of bee flies (Bombyliidae) comprising two described species. These medium-sized flies are characterized by conical faces and distinctive wing venation. Adults are pollinators of low-growing desert flowers, while larvae are parasitoids of ant lions (Myrmeleontidae). The genus is closely related to Villa within the tribe Villini.
Dipalta serpentina
Dipalta serpentina is a species of bee fly in the family Bombyliidae, first described by Osten Sacken in 1877. It is widespread across North America, ranging from British Columbia through most of the United States to Florida, and extending south through Mexico to Central America including Cuba, Guatemala, and Honduras. The species is a known parasitoid of antlions, specifically targeting species such as Myrmeleon immaculatus.
Dolichomyia
Dolichomyia is a genus of bee flies (family Bombyliidae) comprising seven described species. The genus was established by Wiedemann in 1830 and is classified within the subfamily Toxophorinae and tribe Systropodini. Species occur in the Americas, with records from North and South America. The genus name refers to the elongated body form characteristic of these flies.
Ecliminae
Ecliminae is a subfamily of Bombyliidae (bee flies) containing genera distributed across the New World and Australasian/Oceanian regions. The genus Lepidophora is restricted to the New World with eight species, while Marmasoma is endemic to Australia. At least some species exhibit parasitic life histories, with immature stages developing in hymenopteran hosts.
Epacmus
Epacmus is a genus of bee flies (family Bombyliidae) characterized by a distinctive case of predator mimicry. Adults possess four prominent, black, polished, hemispherical bumps on the rear of the thorax that strikingly resemble the anterior median eyes of jumping spiders (Salticidae). When viewed from behind, these structures create the illusion of a small salticid spider, potentially deterring predation. The genus is small-bodied, measuring approximately 7–10 mm in length, with a tapered, fuzzy appearance and delicate wings. Taxonomic validity remains debated, with some authorities considering Epacmus a synonym of Aphoebantus.
Eucessia rubens
Eucessia rubens is a species of bee fly in the family Bombyliidae, first described by Coquillett in 1886. It belongs to the tribe Aphoebantini within the subfamily Anthracinae. The genus Eucessia is closely related to Aphoebantus, and some authorities consider Eucessia to be a subset of that genus rather than a valid separate genus. Very little is documented about this species specifically, with only 3 observations recorded on iNaturalist.
Euryphthiria
Euryphthiria is a genus of bee flies in the family Bombyliidae, subfamily Phthiriinae, and tribe Poecilognathini. The genus was erected by Evenhuis in 1986. As a member of Phthiriinae, it belongs to a group of bee flies characterized by reduced wing venation and generally small to medium body size. The genus is poorly documented in public sources, with minimal observational records available.
Euryphthiria grandis
Euryphthiria grandis is a species of bee fly (family Bombyliidae) described by Evenhuis in 1986. It belongs to the subfamily Phthiriinae and tribe Poecilognathini. The genus Euryphthiria is part of a diverse group of parasitoid flies whose larvae develop in the nests of solitary bees and wasps. Very little is documented about this particular species beyond its taxonomic description.
Exepacmus johnsoni
Exepacmus johnsoni is a species of bee fly (family Bombyliidae) described by Coquillett in 1894. It belongs to the tribe Aphoebantini within the subfamily Anthracinae. The genus Exepacmus is part of a diverse group of bombyliid flies characterized by their parasitoid life history, with larvae typically developing in the nests of solitary bees or wasps. Very few observations of this species have been recorded, with only 7 documented occurrences in iNaturalist as of the available data.
Exoprosopa agassizii
Exoprosopa agassizii is a species of bee fly in the family Bombyliidae, first described by Friedrich Hermann Loew in 1869. The species belongs to the genus Exoprosopa, a diverse group of bee flies characterized by their robust bodies and often striking patterns. As with other members of the family, E. agassizii likely exhibits the typical bee fly morphology including a stout, furry body and a long proboscis adapted for nectar feeding. The species name honors the naturalist Louis Agassiz.
Exoprosopa albifrons
Exoprosopa albifrons is a species of bee fly in the family Bombyliidae, first described by Curran in 1930. It belongs to the genus Exoprosopa, a diverse group of bee flies within the subfamily Anthracinae. The species epithet "albifrons" (white forehead) likely refers to a distinctive pale marking on the front of the head. Very few observations of this species have been documented, with only four records currently available on iNaturalist.
Exoprosopa anomala
Exoprosopa anomala is a species of bee fly described by Painter in 1934. It belongs to the family Bombyliidae, a diverse group of true flies known for their bee-like appearance and parasitic larval biology. The species is placed in the subfamily Anthracinae and tribe Exoprosopini. Like other bee flies, adults likely feed on nectar and pollen, while larvae are presumed to be parasitoids of other insects, though specific host records for this species remain undocumented.
Exoprosopa argentifasciata
Exoprosopa argentifasciata is a species of bee fly described by Macquart in 1846. As a member of the family Bombyliidae, it belongs to a diverse group of flies known for their bee-like appearance and parasitoid larval biology. The species is placed in the tribe Exoprosopini within the subfamily Anthracinae. Specific biological details for this species remain poorly documented in accessible literature.
Exoprosopa bifurca
Exoprosopa bifurca is a species of bee fly (family Bombyliidae) described by Loew in 1869. It belongs to the subfamily Anthracinae and tribe Exoprosopini. Bee flies in this genus are generally known as parasitoids, though specific host associations for this species remain undocumented in the provided sources.
Exoprosopa dodrina
Exoprosopa dodrina is a species of bee fly described by Curran in 1930. It belongs to the large genus Exoprosopa within the family Bombyliidae, a group of flies known for their bee-like appearance and parasitoid larval biology. The species is part of the tribe Exoprosopini and subfamily Anthracinae. As with most bee flies, adults are likely nectar feeders, while larvae develop as parasitoids of other insects.
Exoprosopa fasciata
Exoprosopa fasciata is a species of bee fly in the family Bombyliidae, first described by Macquart in 1840. As a member of the genus Exoprosopa, it belongs to a diverse group of predatory flies whose larvae parasitize other insects, primarily bees and wasps. The species is part of the subfamily Anthracinae and tribe Exoprosopini.
Exoprosopa painterorum
Exoprosopa painterorum is a species of bee fly in the family Bombyliidae, described by Johnson & Johnson in 1960. It belongs to the subfamily Anthracinae and tribe Exoprosopini. The species is named in honor of the Painter family, likely referring to entomologists associated with this group. Very few observations of this species have been documented.
Exoprosopa parda
Exoprosopa parda is a species of bee fly in the family Bombyliidae, first described by Osten Sacken in 1886. Bee flies in this genus are parasitoids, with larvae typically developing in the nests of solitary bees or wasps. The species is poorly documented in published literature, with only 19 observations recorded on iNaturalist.
Geminaria pellucida
Geminaria pellucida is a species of bee fly in the family Bombyliidae, subfamily Lordotinae. Described by Coquillett in 1894, this species belongs to a genus characterized by distinctive morphological features typical of the bee fly lineage. Bee flies are known for their parasitoid larval development, though specific host relationships for this species remain undocumented.
Geron
Geron is a genus of bee flies in the family Bombyliidae, established by Meigen in 1820. These small to minute flies are characterized by their slender bodies, reduced wing venation, and often distinctive facial markings. Members of this genus are parasitoids, with larvae developing in the egg sacs of spiders. The genus is placed in the subfamily Toxophorinae and tribe Gerontini. Geron species are found across multiple continents including North America and Europe.
Hemipenthes
Hemipenthes is a large genus of bee flies (family Bombyliidae) comprising numerous described species distributed across the Holarctic and Palearctic regions. Adults are small to large robust flies measuring 5–14 mm in body length. The genus is distinguished from similar bee fly genera by characteristic wing venation patterns. A significant taxonomic revision occurred in 2020, when several species were transferred to the new genus Ins.
Hemipenthes blanchardiana
A species of bee fly in the family Bombyliidae. Larvae of the genus Hemipenthes are hyper-parasites, developing as parasites of ichneumon wasps, tachinid flies, and other insects that are themselves parasites of caterpillars. This makes them secondary consumers in parasitoid food webs. Adults visit flowers for nectar. The species has been documented in Arizona and other parts of North America.
Hemipenthes celeris
Hemipenthes celeris is a species of bee fly in the family Bombyliidae. It was first described by Wiedemann in 1828. A 2009 taxonomic review synonymized three previously recognized species names under H. celeris, establishing it as the valid name for this taxon in North America. Like other members of the genus Hemipenthes, its larvae are hyper-parasites of other parasitic insects.
Hemipenthes curta
Bee Fly
Hemipenthes curta is a species of bee fly in the family Bombyliidae. Like other members of the genus Hemipenthes, its larvae are hyper-parasites—parasites of other parasitic insects. The species occurs in North America and is active during spring and summer months. Adult bee flies in this genus are typically observed visiting flowers for nectar.
Hemipenthes edwardsii
Edwards's bee fly
Hemipenthes edwardsii is a bee fly in the family Bombyliidae, found in western North America. Its larvae are hyper-parasites, developing as parasites of ichneumon wasp and tachinid fly larvae that themselves parasitize caterpillars of butterflies and moths. The species was described by Coquillett in 1894 and is one of approximately 800 bee fly species in North America.
Hemipenthes inops
Hemipenthes inops is a species of bee fly in the family Bombyliidae, found in the western United States. It is distinguished from other members of its genus by its mostly transparent wings, whereas congeners typically have patterned or darkened wings. The species belongs to a genus whose larvae are known to be hyper-parasitoids, developing as parasites of other parasitic insects.
Hemipenthes jaennickeana
Hemipenthes jaennickeana is a species of bee fly in the family Bombyliidae, characterized by its hyper-parasitic larval lifestyle. Like other members of the genus Hemipenthes, its larvae develop as parasites of other parasitic insects, specifically targeting ichneumon wasp and tachinid fly larvae that themselves parasitize caterpillars. The species was described by Osten Sacken in 1886 and is part of a diverse family of true flies that often mimic bees in appearance.
Hemipenthes lepidota
Hemipenthes lepidota is a species of bee fly in the family Bombyliidae. As a member of the genus Hemipenthes, its larvae are hyper-parasites that parasitize the larvae of other parasitic insects, including ichneumon wasps and tachinid flies, which themselves are parasites of butterfly and moth caterpillars. Adults are likely flower visitors, feeding on nectar with their elongated proboscis. The species was described by Osten Sacken in 1887 and belongs to the subfamily Anthracinae.
Hemipenthes scylla
Hemipenthes scylla is a species of bee fly in the family Bombyliidae. The genus Hemipenthes is notable for its unusual larval ecology: larvae are hyper-parasites that parasitize the larvae of other parasitic insects, including ichneumon wasps and tachinid flies, which themselves attack caterpillars of butterflies and moths. The species has been documented in Mexico, Texas, and Arizona.
Hemipenthes seminigra
Hemipenthes seminigra is a North American bee fly in the family Bombyliidae, measuring 8–12 mm in length. The species was described by Loew in 1869, with H. eumenes (Osten Sacken, 1886) synonymized in a 2009 taxonomic revision. Larvae of the genus Hemipenthes are hyper-parasites, parasitizing the larvae of ichneumon wasps, tachinid flies, and other parasitoids that themselves attack caterpillars of butterflies and moths.
Heterostylum
bee-flies
Heterostylum is a genus of bee-flies (Bombyliidae) comprising 14 described species distributed throughout the Americas. These robust, densely hairy flies measure 10–15 mm in body length. The genus is distinguished by diagnostic morphological features including an indentation in the hind margin of the eye and distinctive wing venation patterns. Larvae are parasitoids that develop within the nests of mining bees.
Lepidanthrax
Lepidanthrax is a genus of bee flies in the family Bombyliidae, containing at least 50 described species. The genus is primarily distributed across North and Central America, with isolated records from the Galapagos Islands and Australia. As members of the subfamily Anthracinae, these flies are part of a diverse group of parasitoid insects. The genus was established by Osten Sacken in 1886.
Lepidanthrax angulus
Lepidanthrax angulus is a species of bee fly in the family Bombyliidae. It was described by Osten Sacken in 1886. The species occurs in the southwestern United States and Mexico. As with other bee flies, adults are likely nectar feeders, though specific biological details remain poorly documented.
Lepidanthrax californicus
Lepidanthrax californicus is a species of bee fly in the family Bombyliidae, first described by Hall in 1976. It is endemic to the southwestern United States and adjacent Mexico, with confirmed records from California, Arizona, and Baja California Norte. Bee flies in this family are typically characterized by their robust, hairy bodies and long proboscises adapted for nectar feeding. The species belongs to the subfamily Anthracinae and tribe Villini, a group whose members often exhibit striking coloration and patterns.
Lepidanthrax disjunctus
Lepidanthrax disjunctus is a species of bee fly in the family Bombyliidae. The species is documented from Mexico and the U.S. state of Arizona. Bee flies in this family are typically characterized by their resemblance to bees and their parasitic or predatory larval life histories, though specific biological details for this species remain limited.
Lepidanthrax eremicus
Lepidanthrax eremicus is a species of bee fly in the family Bombyliidae, described by Hall in 1976. The species is known only from California. As a member of the bee fly family, it likely exhibits the characteristic parasitoid lifestyle of many bombyliids, though specific biological details remain undocumented.
Lepidophora
bee flies
Lepidophora is a genus of bee flies in the family Bombyliidae, comprising eight described species restricted to the New World. The genus exhibits a distinctive hunch-backed body shape and includes species with notable mimicry patterns. Larvae are kleptoparasites of solitary wasp nests, usurping provisions rather than parasitizing larvae directly. Adults are commonly observed feeding on nectar from flowers.
Lepidophora lepidocera
Scaly Bee Fly
Lepidophora lepidocera is a Nearctic bee fly species in the family Bombyliidae, one of eight species in the genus Lepidophora. The genus is restricted to the New World, with L. lepidocera occurring in the eastern United States. Adults display a distinctive hunch-backed body shape and are frequently observed visiting flowers for nectar. Larvae are kleptoparasites that usurp provisions from solitary wasp nests rather than parasitizing the wasp larvae directly.
Ligyra
Ligyra is a genus of bee flies (Diptera: Bombyliidae) in the tribe Exoprosopini, established by Edward Newman in 1841. The genus contains at least 110 described species with cosmopolitan distribution, though recent cladistic analysis has restricted its scope by erecting a new genus for New World species previously assigned to Ligyra. Species in this genus are hyperparasitoids, attacking ground-nesting aculeate Hymenoptera including Sphecidae, Pompilidae, Tiphiidae, and Scoliidae.
Ligyra gazophylax
Ligyra gazophylax is a species of bee fly in the family Bombyliidae, originally described by Loew in 1869. The species has been reclassified under the genus Nyia in some taxonomic treatments, reflecting ongoing revision within the family. Bee flies in this group are characterized by their parasitoid life history and distinctive adult morphology.
Lordotus
Lordotus is a North American genus of bee flies in the family Bombyliidae, containing approximately 30 described species. The genus is classified within the subfamily Lordotinae and tribe Lordotini. Members of this genus are found primarily in western and southwestern United States and adjacent regions of Mexico. One species, Lordotus striatus, has been observed visiting flowers of Pseudoclappia arenaria in alkaline flats of tamarisk/saltbush chaparral in New Mexico.
Lordotus planus
Lordotus planus is a species of bee fly in the family Bombyliidae, first described by Osten Sacken in 1877. It belongs to the subfamily Lordotinae and tribe Lordotini. The genus Lordotus comprises bee flies characterized by their distinctive morphological features. Limited information exists on the specific biology and ecology of this species, though it shares the general life history traits of Bombyliidae, including parasitoid larval development and adult nectar-feeding behavior.
Lordotus pulchrissimus
desert bee fly
Lordotus pulchrissimus is a bee fly in the family Bombyliidae, commonly known as the desert bee fly. Males and females exhibit strong sexual dimorphism in size, fur density, and coloration—females are smaller (2–14 mm), more densely furred, and display brighter orange-yellow tones that fade rapidly with age, while males are larger (8–16 mm), less hairy, and possess black markings on the femora. The species is notable for the daily aerial swarming behavior of males, which form aggregations over stabilized dunes for reasons that remain unclear; this behavior is energetically costly and occurs independently of female presence or resource density. Adults feed primarily on nectar from desert brush, particularly rabbitbrush (Chrysothamnus nauseosus), and serve as pollinators. Larvae are parasitoids, though specific host insects remain unidentified.
Lordotus striatus
Lordotus striatus is a species of bee fly in the family Bombyliidae, first described by Painter in 1940. It belongs to the subfamily Lordotinae and tribe Lordotini. The species has been documented in arid and semi-arid regions of the southwestern United States, particularly in association with flowering plants in alkaline flats and tamarisk/saltbush chaparral habitats.
Lordotus zona
Lordotus zona is a species of bee fly in the family Bombyliidae, first described by Coquillett in 1887. The genus Lordotus belongs to the subfamily Lordotinae, a group of bee flies characterized by distinctive morphological features. Records of this species are relatively sparse, with limited observational data available through community science platforms. The species epithet 'zona' likely refers to banded or zoned coloration patterns.
Mancia
Mancia is a genus of bee flies (family Bombyliidae) in the subfamily Anthracinae, tribe Villini. The genus was established by Daniel William Coquillett in 1886. Very little published information exists on the biology or species diversity of this genus.
Metacosmus mancipennis
Metacosmus mancipennis is a species of bee fly (Diptera: Bombyliidae) in the subfamily Tomomyzinae, described by Coquillett in 1910. The genus Metacosmus is a small group within Bombyliidae, and this species remains poorly documented in scientific literature. Available records are sparse, with limited observational data despite its acceptance as a valid taxon.
Neacreotrichus
Neacreotrichus is a genus of bee flies (Bombyliidae) comprising approximately 13 described species. The genus was established by Theodore Dru Alison Cockerell in 1917. Species are found in the southwestern United States and Mexico. Members are small-bodied bee flies that have been documented in arid and semi-arid environments.
Neodiplocampta mirella
Neodiplocampta mirella is a species of bee fly in the family Bombyliidae, described by Hull and Martin in 1974. The species is known only from California. As a member of the subfamily Anthracinae and tribe Villini, it belongs to a group of bee flies characterized by particular wing venation patterns. No observations of this species have been recorded in iNaturalist.
Ogcodocera analis
Ogcodocera analis is a species of bee fly in the family Bombyliidae, first described by Williston in 1901. It belongs to the subfamily Lomatiinae and tribe Lomatiini. The species is known from a limited geographic range in the southwestern United States and adjacent Mexico. Observations of this species are sparse, with only five documented records in iNaturalist as of the source date.
Ogcodocera leucoprocta
White-faced bee fly
Ogcodocera leucoprocta is a species of bee fly in the family Bombyliidae, commonly known as the white-faced bee fly. It is found in eastern North America, ranging from Mexico northward through the United States to Quebec. The species is one of approximately 4,000 described bee flies worldwide.
Pantarbes
Pantarbes is a genus of bee flies (family Bombyliidae) comprising six described species. The genus was established by Osten Sacken in 1877 and is currently classified within the subfamily Cythereinae. Species in this genus are found in North America, with records from the western United States and adjacent regions.
Pantarbes capito
Pantarbes capito is a species of bee fly (family Bombyliidae) described by Osten Sacken in 1877. It is known from the southwestern United States, with records spanning from California to Wyoming. As a member of the bee fly family, it belongs to a group of flies that are typically pollinators and often parasitoids of other insects. The genus Pantarbes is classified within the subfamily Cythereinae.
Pantarbes earinus
Pantarbes earinus is a species of bee fly in the family Bombyliidae, first described by Hall & Evenhuis in 1984. It is distributed across western North America, ranging from British Columbia, Canada to New Mexico, United States. As a member of the subfamily Cythereinae, it belongs to a group of bee flies characterized by particular wing venation and body plan features.
Pantarbes megistus
Pantarbes megistus is a species of bee fly in the family Bombyliidae. It was described by Hall and Evenhuis in 1984. The species has an extremely restricted known distribution, documented only from the northern Mojave Desert in California. As a member of the subfamily Cythereinae, it belongs to a group of bee flies whose biology remains poorly understood.
Paracosmus edwardsii
Paracosmus edwardsii is a species of bee fly in the family Bombyliidae. It is known from California and Utah. The genus Paracosmus belongs to the diverse assemblage of bee flies, which are characterized by their stout, often fuzzy bodies and long proboscises adapted for nectar feeding. Most bee flies are parasitoids or predators in their larval stages, though specific life history details for this species remain undocumented.
Paracosmus insolens
Paracosmus insolens is a species of bee fly (Diptera: Bombyliidae) described by Coquillett in 1891. It belongs to the subfamily Tomomyzinae. The species is documented from California and Nevada in western North America. As with other bee flies, it likely exhibits parasitoid larval biology, though specific details remain unverified.
Paracosmus morrisoni
Paracosmus morrisoni is a species of bee fly in the family Bombyliidae, subfamily Tomomyzinae. It was described by Osten Sacken in 1887. The species occurs in the southwestern United States and Mexico, representing part of the diverse bee fly fauna of arid and semi-arid regions of North America.
Paracosmus rubicundus
Paracosmus rubicundus is a species of bee fly in the family Bombyliidae, first described by Melander in 1950. It belongs to the subfamily Tomomyzinae and is known from a limited geographic range in southwestern North America and Mexico. Bee flies in this family are generally nectar-feeding as adults, though specific ecological details for this species remain poorly documented.
Paradiplocampta tabeti
Paradiplocampta tabeti is a species of bee fly (family Bombyliidae) described by Hall in 1974. It belongs to the subfamily Anthracinae and tribe Villini. The genus Paradiplocampta contains species characterized by distinctive wing venation and body proportions. Like other bombyliids, adults likely function as pollinators and larvae are presumed parasitoids, though specific biological details for this species remain poorly documented.
Paravilla cinerea
Paravilla cinerea is a species of bee fly in the family Bombyliidae, first described by Cole in 1923. It belongs to the tribe Villini within the subfamily Anthracinae. The species has been recorded in the southwestern United States and northwestern Mexico.
Paravilla deserta
Paravilla deserta is a species of bee fly (Bombyliidae) described by Hall in 1981. It belongs to the subfamily Anthracinae and tribe Villini. The species is known from arid and semi-arid regions of western North America.
Paravilla fumosa
Paravilla fumosa is a species of bee fly in the family Bombyliidae, described by Hall in 1981. It is endemic to California. As a member of the bee fly family, it likely exhibits the characteristic parasitoid lifestyle of many bombyliids, though specific details remain unreported.
Paravilla mercedis
Paravilla mercedis is a species of bee fly in the family Bombyliidae, described by Coquillett in 1887. It occurs in arid and semi-arid regions of the southwestern United States and northwestern Mexico. As a member of the tribe Villini, it shares the characteristic bee-like appearance common to this group of flies.
Paravilla mexicana
Paravilla mexicana is a species of bee fly in the family Bombyliidae, first described by Hall in 1981. As a member of the genus Paravilla, it belongs to the tribe Villini within the subfamily Anthracinae. Bee flies in this genus are typically parasitoids or cleptoparasites of other insects, particularly solitary bees and wasps. The species epithet 'mexicana' suggests a geographic association with Mexico, though the precise distribution requires confirmation from specimen records.
Paravilla separata
Paravilla separata is a species of bee fly in the family Bombyliidae. It occurs in eastern North America, ranging from Canada through the United States and into Mexico. Bee flies in this family are generally known as pollinators and parasitoids, though specific ecological details for this species remain limited.
Paravilla splendida
Paravilla splendida is a species of bee fly (family Bombyliidae) described by Hall in 1981. It belongs to the subfamily Anthracinae and tribe Villini. The species has a restricted geographic range limited to California and Baja California Norte, Mexico.
Paravilla syrtis
Paravilla syrtis is a species of bee fly in the family Bombyliidae. It occurs in arid regions across western North America, ranging from the Yukon through the United States to Mexico. As with other bee flies, adults are likely nectar feeders, though specific biological details remain poorly documented.
Phthiriinae
Phthiriinae is a subfamily of bee flies (family Bombyliidae) established by Becker in 1913. The subfamily comprises approximately 11 genera and over 120 described species, though estimates vary across sources. Members are distributed across multiple continents including records from Iran, with at least one species (Phthiria fulva) documented as a parasitoid of Lepidoptera. The immature stages remain poorly known, with the pupa of Phthiria fulva representing the first described immature stage for the genus Phthiria.
Poecilanthrax alcyon
bee fly
Poecilanthrax alcyon is a species of bee fly in the family Bombyliidae. It is widely distributed across North America, occurring from Canada through the United States to Mexico. The species belongs to a genus whose larvae develop as parasites inside caterpillars, primarily of the family Noctuidae.
Poecilanthrax alpha
Poecilanthrax alpha is a species of bee fly (family Bombyliidae) first described by Osten Sacken in 1877. It belongs to a strictly North American genus of parasitoid flies whose larvae develop inside caterpillars, primarily cutworms and armyworms (Noctuidae). The genus Poecilanthrax contains approximately 35 species, with greatest diversity in the Great Basin region. Specific details about P. alpha's biology and distribution remain limited in published literature.
Poecilanthrax apache
A species of bee fly in the family Bombyliidae, described in 1960. Belongs to the strictly North American genus Poecilanthrax, which comprises approximately 35 species concentrated in the Great Basin region. Larvae develop as parasitoids within caterpillars of cutworms and armyworms (Noctuidae).
Poecilanthrax arethusa
Poecilanthrax arethusa is a species of bee fly in the family Bombyliidae. As a member of the genus Poecilanthrax, it is likely a parasitoid whose larvae develop within caterpillars, though specific host records for this species are not well documented. Bee flies in this genus are typically univoltine in natural habitats. The species was described by Osten Sacken in 1886.
Poecilanthrax bicellata
Poecilanthrax bicellata is a species of bee fly (family Bombyliidae) in the subfamily Anthracinae. The genus Poecilanthrax is strictly North American, with the greatest diversity in the Great Basin region. Like other members of the genus, this species likely develops as a parasitoid of noctuid caterpillars, though specific host records for P. bicellata remain unconfirmed. Adults are typically observed visiting flowers.
Poecilanthrax californicus
Poecilanthrax californicus is a species of bee fly in the family Bombyliidae, first described by Cole in 1917. As a member of the genus Poecilanthrax, it belongs to a strictly North American group of bee flies whose larvae develop as parasites inside caterpillars of various cutworms and armyworms (family Noctuidae). The species epithet 'californicus' suggests a primary association with California, though specific details about its biology and distribution remain limited in available sources.
Poecilanthrax effrenus
Poecilanthrax effrenus is a species of bee fly in the family Bombyliidae, subfamily Anthracinae, tribe Villini. The species was described by Coquillett in 1887. It has been documented in the southwestern United States, particularly in Texas. The genus Poecilanthrax comprises predatory bee flies whose larvae develop as parasitoids or predators of other insects.
Poecilanthrax eremicus
Poecilanthrax eremicus is a species of bee fly in the family Bombyliidae, first described by Painter & Hall in 1960. The genus Poecilanthrax is strictly North American, with greatest species diversity in the Great Basin region. Like other members of this genus, adults likely parasitize caterpillars of noctuid moths. The specific epithet 'eremicus' suggests an association with arid or desert habitats.
Poecilanthrax fasciatus
Poecilanthrax fasciatus is a species of bee fly (family Bombyliidae) described by Johnson & Johnson in 1957. As a member of the genus Poecilanthrax, it belongs to the tribe Villini within the subfamily Anthracinae. Bee flies in this family are generally known as parasitoids, though specific biological details for this species remain poorly documented.
Poecilanthrax fuliginosus
Poecilanthrax fuliginosus is a species of bee fly in the family Bombyliidae, subfamily Anthracinae. The genus Poecilanthrax is strictly North American in distribution, with the greatest species abundance in the Great Basin region. Larvae of Poecilanthrax species develop as parasitoids inside caterpillars, primarily of cutworms and armyworms in the family Noctuidae. The specific epithet "fuliginosus" (sooty or soot-black) suggests dark coloration, though detailed species-level description is limited in available sources.
Poecilanthrax hyalinipennis
Poecilanthrax hyalinipennis is a species of bee fly in the family Bombyliidae, described by Painter & Hall in 1960. The genus Poecilanthrax is strictly North American, with greatest abundance in the Great Basin region. Larvae of related species develop as parasites inside caterpillars of cutworms and armyworms (family Noctuidae), though the specific life history of P. hyalinipennis has not been documented.
Poecilanthrax monticola
Poecilanthrax monticola is a species of bee fly in the family Bombyliidae, described by Johnson & Johnson in 1957. The species is distributed in western North America, ranging from British Columbia and Alberta southward to Nebraska, Utah, and Colorado. As a member of the genus Poecilanthrax, it likely shares the parasitic larval lifestyle typical of the genus, developing inside caterpillars of noctuid moths, though specific life history details for this species remain undocumented.
Poecilanthrax nigripennis
Poecilanthrax nigripennis is a species of bee fly (family Bombyliidae) described by Cole in 1917. The genus Poecilanthrax is strictly North American, with greatest species diversity in the Great Basin region. Members of this genus are parasitoids whose larvae develop inside caterpillars, primarily of noctuid moths (cutworms and armyworms).
Poecilanthrax poecilogaster
Poecilanthrax poecilogaster is a species of bee fly in the family Bombyliidae, described by Osten Sacken in 1886. The genus Poecilanthrax is strictly North American, with the greatest diversity in the Great Basin region. Like other members of this genus, P. poecilogaster likely develops as a parasitoid of noctuid caterpillars, though specific host records for this species remain unconfirmed. Adults are typically observed visiting flowers or perching on vegetation in open, sunny habitats.
Poecilanthrax sackenii
Poecilanthrax sackenii is a North American bee fly in the family Bombyliidae. The genus Poecilanthrax contains approximately 35 species distributed from Canada through Central America, with greatest diversity in the Great Basin region. Larvae of Poecilanthrax species develop as parasitoids within caterpillars of cutworms and armyworms (family Noctuidae). The species P. sackenii specifically has been documented as a parasitoid of grasshoppers, with the tangleveined fly Neorhynchocephalus sackenii (originally described as Sackenia sackenii) being a principal dipterous parasite of the valley grasshopper (Oedaleonotus enigma) and ebony grasshopper (Boopedon nubilum).
Poecilanthrax tegminipennis
bee fly
Poecilanthrax tegminipennis is a species of bee fly in the family Bombyliidae. It is widespread across Canada and the United States. The genus Poecilanthrax is strictly North American, with the greatest abundance of species and individuals in the Great Basin region. Like other members of the genus, P. tegminipennis is presumed to have larvae that develop as parasites inside caterpillars, though specific host records for this species are not documented.
Poecilanthrax willistonii
Williston's bee fly
Poecilanthrax willistonii is a North American bee fly in the family Bombyliidae. The genus Poecilanthrax is strictly North American in distribution, with the greatest abundance of species and individuals found in the Great Basin region. Like other members of the genus, the larvae develop as parasites inside caterpillars of cutworms and armyworms (family Noctuidae). Adults are typically found in arid and semi-arid habitats, often associated with flowering plants where they feed on nectar.
Poecilognathini
Poecilognathini is a tribe of bee flies (family Bombyliidae) established by Evenhuis in 1990. Members are classified within the subfamily Phthiriinae. The tribe contains multiple genera of small to medium-sized flies that share distinctive morphological features related to wing venation and body structure. The group is primarily distributed in the New World tropics and subtropics.
Poecilognathus
Poecilognathus is a genus of bee flies (family Bombyliidae) distributed across North, Central, and South America. The genus contains at least 20 described species. These flies are members of the subfamily Phthiriinae and tribe Poecilognathini. As with other bee flies, adults are typically flower visitors, though detailed biological information for most species remains limited.
Poecilognathus badius
Poecilognathus badius is a species of bee fly in the family Bombyliidae. The genus Poecilognathus belongs to this diverse family of true flies, whose larvae are predominantly parasitoids of other insects. Information specific to this species is extremely limited in available sources.
Poecilognathus damfino
Poecilognathus damfino is a species of bee fly in the family Bombyliidae, subfamily Phthiriinae, described by Evenhuis in 2024. The genus Poecilognathus is part of the tribe Poecilognathini, a group of small to medium-sized bee flies characterized by their distinctive wing venation and often metallic coloration. As a recently described species, specific details about its biology and distribution remain limited.
Relictiphthiria
Relictiphthiria is a genus of bee flies (family Bombyliidae) established by Evenhuis in 1986. It belongs to the subfamily Phthiriinae and tribe Poecilognathini. The genus is known from a small number of observations (21 records on iNaturalist as of source date), suggesting it is either rare, poorly sampled, or restricted in distribution. As with other bee flies, adults likely feed on nectar and pollen, though specific biological details remain poorly documented.
Rhynchanthrax
bee flies
Rhynchanthrax is a genus of bee flies (family Bombyliidae) native to North America. The genus was established by Painter in 1933 and contains seven described species. These flies are members of the subfamily Anthracinae and tribe Villini.
Sparnopolius confusus
Aster Bee Fly
Sparnopolius confusus is a species of bee fly (family Bombyliidae) measuring 6–9 mm in length. It is known to be a parasitoid of June beetles (Phyllophaga). The species is widely distributed across most of the United States and parts of Mexico. It is commonly referred to as the Aster Bee Fly due to its association with aster flowers.
Stonyx
Stonyx is a genus of bee flies (family Bombyliidae) established by Osten Sacken in 1886. The genus contains five described species distributed in the New World tropics and subtropics. These species are placed in the subfamily Anthracinae and tribe Villini.
Systoechus
Woolly Bee Flies
Systoechus is a genus of bee flies in the family Bombyliidae, containing more than 120 described species. These flies belong to the tribe Bombyliini and are characterized by their woolly appearance. Adults are primarily active in the fall, distinguishing them from the related genus Bombylius which tends to be active in spring. The genus is distinguished from Bombylius by the location of the r-m vein on the wing.
Systoechus candidulus
Systoechus candidulus is a species of bee fly in the family Bombyliidae, first described by Loew in 1863. It is known from Ontario, Canada, and across most of the United States. The species is distinguished from the related genus Bombylius by adult activity timing—Systoechus species tend to be active in fall rather than spring. Its larvae are predators of grasshopper eggs, a trait that differs from the parasitoid lifestyle of many other bombyliid larvae.
Systoechus oreas
Systoechus oreas is a species of bee fly in the family Bombyliidae. It is known from western North America, with records from British Columbia, Canada and the western United States. The larvae are predators of grasshopper eggs, a trait that distinguishes this species ecologically from many other bee flies. Adults are active in the fall, in contrast to the spring-active members of the related genus Bombylius.
Systropodini
Systropodini is a tribe of bee flies within the subfamily Toxophorinae of the family Bombyliidae. Members of this tribe are characterized by distinctive morphological features that separate them from other toxophorine groups. The tribe contains multiple genera distributed across various regions. Bee flies in this group are generally parasitoids, with larvae developing in the nests of other insects.
Systropus
bee flies
Systropus is a large genus of bee flies (Bombyliidae) containing over 200 described species distributed across every continent except Antarctica. Species are medium-sized flies characterized by distinctive wing venation and male genitalia morphology. The genus is taxonomically significant within the subfamily Toxophorinae, with ongoing revisions clarifying species boundaries, particularly in Australia where 12 new species were recently described.
Systropus arizonicus
Arizona bee fly
Systropus arizonicus is a species of bee fly in the family Bombyliidae, first described by Banks in 1909. The species is native to the southwestern United States and adjacent Mexico, with confirmed records from Arizona and Mexico. Like other members of the genus Systropus, this species is parasitic in its larval stage. The genus belongs to the subfamily Toxophorinae, a group characterized by their distinctive wing venation and parasitic life history.
Systropus bicornis
Systropus bicornis is a species of bee fly in the family Bombyliidae, described by Painter & Painter in 1963. The species is known from Mexico. As a member of the genus Systropus, it belongs to a group of bee flies characterized by distinctive morphological features. Beyond its taxonomic placement and geographic occurrence, detailed biological information remains limited.
Thevenetimyia
Thevenetimyia is a genus of bee flies (family Bombyliidae) containing over 40 described species. The genus has a broad distribution, with the majority of species occurring in North America and additional representatives in Australia and Southeast Asia. Species in this genus are parasitoids, with larvae developing in the nests of other insects. Adults are known to visit flowers for nectar.
Thevenetimyia affinis
Thevenetimyia affinis is a species of bee fly in the family Bombyliidae, described by Hall in 1969. The genus Thevenetimyia belongs to a group of bee flies characterized by their parasitoid larval lifestyle. As with other members of Bombyliidae, adults are likely nectar feeders, while larvae develop as parasitoids of other insects, typically solitary bees or wasps. The species is documented through 27 observations on iNaturalist, indicating it is recognized in field records but remains poorly studied in the scientific literature.
Thevenetimyia luctifera
A species of bee fly in the family Bombyliidae, found in western North America from Mexico to British Columbia. As with other bee flies, adults likely feed on nectar and pollen, while larvae are presumed to be parasitoids of other insects. The species is documented by 26 observations on iNaturalist, suggesting it is encountered infrequently.
Thevenetimyia tridentata
Thevenetimyia tridentata is a species of bee fly in the family Bombyliidae, first described by Hull in 1966. Bee flies are a diverse family of true flies known for their parasitoid larval biology, typically attacking the immature stages of other insects. The genus Thevenetimyia belongs to a group of bee flies characterized by distinctive morphological features. Specific biological details for T. tridentata remain poorly documented in accessible literature.
Thyridanthrax andrewsi
bee fly
Thyridanthrax andrewsi is a species of bee fly (family Bombyliidae) found in the western United States. The species was described by Hall in 1970 and is one of approximately 4,500 described species of bee flies worldwide. Members of this genus are known parasitoids, with females depositing eggs into the nests of solitary wasps.
Thyridanthrax atratus
Thyridanthrax atratus is a species of bee fly in the family Bombyliidae. The species occurs in western North America, ranging from California and Nevada northward to British Columbia, Canada. Bee flies in this family are typically parasitoids of other insects, though specific host records for this species are limited.
Thyridanthrax fenestratoides
Thyridanthrax fenestratoides is a bee fly species in the family Bombyliidae. Its range extends from the Yukon through Canada, across most of the United States, and into Mexico. The species is morphologically similar to the Eurasian T. fenestratus. As a member of the genus Thyridanthrax, it is a known parasitoid of solitary wasp nests, with females observed hovering over open burrows and depositing eggs into tunnels.
Thyridanthrax luminis
Thyridanthrax luminis is a species of bee fly in the family Bombyliidae, described by Hall in 1970. The species is known from California. Bee flies in this genus are parasitoids, with females laying eggs in the nests of solitary wasps. A related species, Thyridanthrax sp., has been observed parasitizing nests of the thread-waisted wasp Ammophila aberti in Arizona.
Thyridanthrax melanopterus
Thyridanthrax melanopterus is a species of bee fly (family Bombyliidae) in the genus Thyridanthrax. The genus is known for parasitoid behavior, with females depositing eggs into the burrows of solitary wasps. Observations of related Thyridanthrax species indicate females hover over host nests and lob eggs into tunnels. This species has been documented in 32 iNaturalist observations.
Thyridanthrax nugator
Thyridanthrax nugator is a species of bee fly in the family Bombyliidae, native to western North America. The species is known from California and Oregon. As a member of the bee fly family, it likely exhibits the characteristic hovering flight and parasitic larval lifestyle typical of the group, though specific biological details remain poorly documented. The genus Thyridanthrax belongs to the tribe Villini within the subfamily Anthracinae.
Thyridanthrax pallidus
Thyridanthrax pallidus is a species of bee fly in the family Bombyliidae, first described by Coquillett in 1887. The genus Thyridanthrax belongs to the subfamily Anthracinae and tribe Villini. Bee flies in this genus are known for their parasitic or kleptoparasitic life history strategies, with females depositing eggs into the nests of other insects. T. pallidus has been observed as a potential parasite of thread-waisted wasps in the genus Ammophila.
Tmemophlebia
Tmemophlebia is a genus of bee flies (family Bombyliidae) established by Evenhuis in 1986. The genus comprises approximately 16-17 described species distributed across North and South America. Members of this genus belong to the subfamily Phthiriinae and tribe Poecilognathini.
Tomomyzinae
Tomomyzinae is a subfamily of bee flies within the family Bombyliidae, established by Becker in 1913. The subfamily contains six recognized genera: Amphicosmus, Docidomyia, Metacosmus, Pantostomus, Paracosmus, and Tomomyza. Species counts vary across sources, with estimates ranging from approximately 13 to more than 50 described species. Members are part of the diverse bee fly radiation, characterized by their parasitoid life history and adult nectar-feeding behavior.
Toxophora leucopyga
Toxophora leucopyga is a species of bee fly (family Bombyliidae) described by Wiedemann in 1828. The genus Toxophora belongs to the subfamily Toxophorinae, a group characterized by parasitic larvae that develop in the nests of solitary wasps and bees. This species, like other members of its genus, is known to parasitize the nests of mason wasps.
Toxophora maxima
Toxophora maxima is a species of bee fly (family Bombyliidae) first described by Coquillett in 1886. The species ranges from Mexico through the western United States to British Columbia, Canada. As a member of the subfamily Toxophorinae, it belongs to a group of bee flies characterized by distinctive morphological features, though specific biological details for this species remain poorly documented in available literature.
Toxophora pellucida
Toxophora pellucida is a species of bee fly in the family Bombyliidae. It has been recorded from Mexico through most of the western United States to Canada. The species belongs to the subfamily Toxophorinae, a group characterized by particular morphological features within the bee flies.
Toxophorinae
bee flies
Toxophorinae is a subfamily of bee flies (Bombyliidae) established by Schiner in 1868, comprising more than 400 described species across five extant genera (Dolichomyia, Geron, Systropus, Toxophora, Zaclava) and two extinct genera (Melanderella, Paradolichomyia). The subfamily is characterized by parasitoid life histories, with larvae developing in the nests of solitary wasps. Species of Toxophora have been documented as parasitoids of sphecid and vespid wasps, including genera such as Isodontia, Cyphomenes, Pachodynerus, and Zethus.
Triploechus novus
Triploechus novus is a species of bee fly in the family Bombyliidae, first described by Williston in 1893. It belongs to the genus Triploechus, a group within the bee fly subfamily Bombyliinae. The species is part of a diverse family of flies known for their parasitic larval stages and adult pollination behavior.
Villa
bee flies
Villa is a genus of bee flies (family Bombyliidae) comprising approximately 270 described species distributed across all continents except Antarctica. Adults range from 5 to 17 mm in length and are characterized by rounded heads and distinctive wing venation patterns that distinguish them from related genera such as Hemipenthes. Males of some species possess conspicuous silvery patagial scales. The genus belongs to the tribe Villini within the subfamily Anthracinae.
Villa arenicola
Villa arenicola is a species of bee fly (family Bombyliidae) described by Johnson in 1908. The species epithet "arenicola" indicates a sand-dwelling habit, consistent with many Villa species that inhabit sandy environments. As a member of the bee fly family, it likely exhibits the group's characteristic parasitoid lifestyle, though specific host associations for this species remain undocumented. The genus Villa is among the more speciose genera in Bombyliidae, with adults typically visiting flowers and larvae developing as parasitoids in the nests of various insects.
Villa chromolepida
Villa chromolepida is a species of bee fly in the family Bombyliidae, described by Cole in 1922. The species is known from the United States. As with other bee flies, adults likely feed on nectar and pollen, though specific behavioral and ecological details remain undocumented. The genus Villa contains numerous species of bee flies, many of which are parasitoids of other insects.
Villa fulviana
Villa fulviana is a species of bee fly in the family Bombyliidae, first described by Thomas Say in 1824. As a member of the genus Villa, it shares characteristics typical of this group of parasitoid flies. The species has been documented in taxonomic databases and represents part of the diverse North American dipteran fauna.
Villa harveyi
Villa harveyi is a species of bee fly in the family Bombyliidae, first described by Hine in 1904. The species belongs to the genus Villa, a group of bee flies characterized by their bee-like appearance and parasitoid larval biology. As with other members of Bombyliidae, adults are likely nectar feeders while larvae develop as parasitoids of other insects, though specific host records for this species remain undocumented. The species has been recorded from North America, with observations spanning Canada and the United States.
Villa hypomelas
Villa hypomelas is a species of bee fly in the family Bombyliidae, first described by Macquart in 1840. Originally described as Anthrax hypomelas, it was later transferred to the genus Villa. Bee flies in this family are characterized by their parasitic larval lifestyle and adult nectar-feeding behavior. The species has been documented in the United States with 27 observations recorded on iNaturalist.
Villa lateralis
Villa lateralis is a species of bee fly in the family Bombyliidae, characterized by distinctive yellow and black banding on the abdomen and yellow thoracic hair. The species is widely distributed across North America and Central America. Like other bee flies, it is a parasitoid, though specific host relationships for this species remain poorly documented.
Villa miscella
Villa miscella is a species of bee fly in the family Bombyliidae, a diverse group of true flies known for their parasitoid larval biology. The genus Villa contains numerous species distributed across the Holarctic region, though specific details about V. miscella remain limited in published literature. Like other bee flies, adults likely feed on nectar and pollen, while larvae develop as parasitoids of other insects, typically ground-nesting bees or wasps. The species has been documented through citizen science observations, with 95 records on iNaturalist.
Villa nigra
Villa nigra is a species of bee fly in the family Bombyliidae, described by Cresson in 1916. As a member of the genus Villa, it belongs to a group of parasitoid flies whose larvae develop in the nests of bees and wasps. The species is poorly documented in scientific literature, with limited information available regarding its biology, distribution, and host associations.
Villa nigricauda
Villa nigricauda is a species of bee fly (family Bombyliidae) first described by Loew in 1869. The genus Villa contains parasitoid flies whose larvae develop in the nests of bees and wasps. This species belongs to the subfamily Anthracinae and tribe Villini. Available information on this species is extremely limited, with only a single observation documented on iNaturalist and minimal published literature.
Villa nigropecta
Villa nigropecta is a species of bee fly in the family Bombyliidae, described by Cresson in 1916. The genus Villa comprises medium-sized bee flies commonly known as 'bee flies' due to their resemblance to bees. Members of this genus are parasitoids, with larvae typically developing in the nests of ground-nesting bees and wasps. The specific epithet 'nigropecta' refers to dark coloration on the thorax.
Villa vanduzeei
Villa vanduzeei is a species of bee fly in the family Bombyliidae, first described by Cole in 1923. Bee flies in this genus are known for their parasitoid larval biology, typically attacking the immature stages of other insects, particularly bees and wasps. The species is part of the diverse Villa genus, which contains numerous species across multiple continents. Like other bombyliids, adults likely feed on nectar and pollen from flowers.
Xenox delila
Xenox delila is a species of bee fly in the family Bombyliidae, found in California and Baja California Norte. As with other bee flies, adults are likely pollinators that visit flowers for nectar. The genus Xenox includes parasitic species whose larvae develop in the nests of other insects.
Xenox habrosus
Xenox habrosus is a species of bee fly in the family Bombyliidae. It is found in Mexico, California, and Arizona. As a member of the genus Xenox, it is likely a parasitoid of carpenter bees (Xylocopa), though specific host records for this species are not well documented.
Xenox xylocopae
Xenox xylocopae is a species of bee fly in the family Bombyliidae, first described by Marston in 1970. It is distributed in the southwestern United States and northern Mexico. As a member of the genus Xenox, it is likely associated with carpenter bees (Xylocopa), though specific host relationships have not been extensively documented.