Long-legged-fly

Guides

  • Achradocera barbata

    Achradocera barbata is a species of long-legged fly (Diptera: Dolichopodidae) native to eastern North America. It is one of twelve valid species recognized in the taxonomic revision of the New World genus Achradocera. The species was originally described by Loew in 1861. Like other members of Dolichopodidae, it belongs to a family known for predatory habits and distinctive elongated legs.

  • Amblypsilopus bradleii

    Amblypsilopus bradleii is a species of long-legged fly in the family Dolichopodidae, first described by Van Duzee in 1915. It belongs to the subfamily Sciapodinae, a group characterized by elongated legs and slender bodies. The species is documented through limited observation records, with most information inferred from its placement within a well-studied family of predatory flies.

  • Amblypsilopus psittacinus

    A species of long-legged fly in the family Dolichopodidae, characterized by elongated legs and metallic coloration typical of the family. The specific epithet 'psittacinus' refers to a parrot-like coloration. As a member of Sciapodinae, it exhibits the streamlined body form associated with this subfamily.

  • Amblypsilopus rotundiceps

    A species of long-legged fly in the family Dolichopodidae, subfamily Sciapodinae. First described by Aldrich in 1904. The specific epithet "rotundiceps" refers to the rounded head characteristic of this species. Like other dolichopodids, it possesses the family's distinctive elongated legs and metallic coloration, though specific details of its biology remain poorly documented in published literature.

  • Amblypsilopus scintillans

    A small species of long-legged fly in the family Dolichopodidae, characterized by sexual dimorphism in coxa coloration and a shiny, metallic body. It occurs in eastern North America and is one of the more frequently observed species in its genus, with over 1,500 documented records. The species name refers to its shining appearance.

  • Argyra albicans

    Argyra albicans is a species of long-legged fly in the family Dolichopodidae, first described by Loew in 1861. Members of this family are characterized by their elongated legs and typically metallic coloration. The genus Argyra is placed within the subfamily Diaphorinae.

  • Argyra calceata

    Argyra calceata is a species of long-legged fly in the family Dolichopodidae, first described by Hermann Loew in 1861. The genus Argyra belongs to the subfamily Diaphorinae, a group of small to medium-sized flies known for their metallic coloration and elongated legs. Members of this family are generally predatory as larvae and often associated with moist or aquatic habitats. The specific epithet "calceata" refers to being shod or booted, likely alluding to a characteristic of the leg structure. The species is poorly documented in publicly available literature, with minimal observational records.

  • Argyra nigripes

    Argyra nigripes is a species of long-legged fly in the family Dolichopodidae, described by Loew in 1864. Members of the genus Argyra are small to medium-sized flies characterized by their metallic coloration and elongated legs. The species name 'nigripes' refers to black legs. As with many dolichopodid flies, specific biological details for this species remain poorly documented in accessible literature.

  • Argyra nigriventris

    Argyra nigriventris is a species of long-legged fly in the family Dolichopodidae, described by Van Duzee in 1925. The genus Argyra belongs to the subfamily Diaphorinae, a group characterized by metallic coloration and distinctive genitalia structures. Members of this genus are typically small to medium-sized flies associated with various habitats. The specific epithet "nigriventris" refers to the black venter (underside) of the abdomen, a diagnostic color pattern for this species.

  • Argyra robusta

    Argyra robusta is a species of long-legged fly in the family Dolichopodidae, described by Johnson in 1906. The genus Argyra comprises small to medium-sized flies characterized by their notably long legs and metallic coloration. As with other members of Dolichopodidae, this species is predatory in both larval and adult stages. The specific epithet 'robusta' suggests a relatively sturdy or substantial build compared to congeners. Available records for this species are sparse, with limited observational data documented.

  • Argyra sericata

    Argyra sericata is a species of long-legged fly in the family Dolichopodidae, described by Van Duzee in 1925. The genus Argyra comprises small to medium-sized predatory flies commonly found near water or in moist habitats. As a member of Dolichopodidae, this species likely exhibits the family's characteristic metallic coloration and elongated legs adapted for rapid movement. The specific epithet "sericata" (meaning silken) may refer to body texture or sheen. No detailed biological studies of this particular species have been documented in the provided sources.

  • Asyndetus appendiculatus

    Asyndetus appendiculatus is a species of long-legged fly in the family Dolichopodidae, described by Loew in 1869. Members of this genus are generally small to medium-sized predatory flies with elongated legs. The specific epithet appendiculatus refers to small appendage-like structures, though the precise morphological basis for this name has not been detailed in readily accessible literature. The species is rarely reported, with minimal observational data available.

  • Asyndetus harbeckii

    Asyndetus harbeckii is a species of long-legged fly in the family Dolichopodidae, described by Van Duzee in 1914. The genus Asyndetus comprises small to medium-sized predatory flies characterized by their elongated legs and streamlined bodies. Records of this species are sparse, and its biology remains poorly documented.

  • Asyndetus johnsoni

    Asyndetus johnsoni is a species of long-legged fly in the family Dolichopodidae, described by Van Duzee in 1916. The genus Asyndetus is a large and diverse group within Dolichopodidae, though specific ecological and behavioral information for A. johnsoni remains poorly documented. No observations of this species have been recorded in iNaturalist, indicating it is either rare, cryptic, or undercollected.

  • Asyndetus latus

    Asyndetus latus is a species of long-legged fly in the family Dolichopodidae, described by Van Duzee in 1916. Long-legged flies in this family are generally predatory as adults, feeding on small invertebrates. Very little specific information is documented about this particular species beyond its taxonomic description. The genus Asyndetus contains numerous species, many of which are poorly studied.

  • Asyndetus syntormoides

    Asyndetus syntormoides is a species of long-legged fly (Dolichopodidae) described by Wheeler in 1899. The species has been erroneously reported from the West Indies; these records have been corrected and the species is not among the nine Asyndetus species recognized from that region. Very few observations exist, with only four records in iNaturalist. The actual geographic distribution and biology of this species remain poorly documented.

  • Calyxochaetus frontalis

    Calyxochaetus frontalis is a species of long-legged fly in the family Dolichopodidae, subfamily Sympycninae. Originally described by Loew in 1861, it belongs to the C. frontalis species group within the genus. A lectotype was designated for this species during a comprehensive 2021 revision that recognized 36 species in the genus and established five species groups. The species is known from the Nearctic region.

  • Campsicnemus hirtipes

    Campsicnemus hirtipes is a species of long-legged fly in the family Dolichopodidae. It was described by Loew in 1861. The genus Campsicnemus belongs to the subfamily Sympycninae within Dolichopodidae, a family known for species with notably elongated legs and predatory habits.

  • Chrysotus affinis

    Chrysotus affinis is a species of long-legged fly in the family Dolichopodidae, described by Loew in 1861. The genus Chrysotus is part of the subfamily Diaphorinae and includes numerous small, metallic-colored flies. Members of this genus are generally predatory as adults, though specific ecological details for C. affinis remain poorly documented.

  • Chrysotus arkansensis

    Chrysotus arkansensis is a species of long-legged fly in the family Dolichopodidae. It was described by Van Duzee in 1930 based on six specimens collected from Fayetteville, Arkansas in 1906. As a member of the genus Chrysotus, it belongs to a diverse group of small to medium-sized predatory flies. The species remains poorly known, with no subsequent records or biological studies published since its original description.

  • Chrysotus bellus

    Chrysotus bellus is a species of long-legged fly in the family Dolichopodidae, described by Van Duzee in 1924. The genus Chrysotus belongs to the subfamily Diaphorinae and comprises numerous small, metallic-colored flies commonly found in diverse habitats. As with other members of Dolichopodidae, these flies are characterized by their elongated legs and generally predatory habits. The specific epithet "bellus" (Latin for "beautiful") likely refers to some aspect of the species' appearance.

  • Chrysotus cornutus

    Chrysotus cornutus is a species of long-legged fly in the family Dolichopodidae, first described by Loew in 1862. As a member of this family, it belongs to a diverse group of small to medium-sized predatory flies commonly found in moist habitats. The specific epithet 'cornutus' refers to a horned or projecting feature, though the precise morphological basis for this name is not detailed in available sources. Like other dolichopodids, this species likely exhibits the characteristic long legs and metallic coloration typical of the family.

  • Chrysotus leucostoma

    Chrysotus leucostoma is a species of long-legged fly (family Dolichopodidae) described by Loew in 1861. The genus Chrysotus belongs to the subfamily Diaphorinae, a diverse group of small to medium-sized predatory flies. Members of this genus are generally associated with moist or wetland habitats. Very few observations of this species have been recorded, with only 3 documented occurrences in iNaturalist.

  • Chrysotus obliquus

    Chrysotus obliquus is a species of long-legged fly in the family Dolichopodidae, described by Loew in 1861. The genus Chrysotus is part of the subfamily Diaphorinae, a diverse group of small predatory flies commonly found in various habitats. Very little specific information has been documented about the biology or ecology of this particular species.

  • Chrysotus tarsalis

    Chrysotus tarsalis is a species of long-legged fly in the family Dolichopodidae, described by Van Duzee in 1924. The genus Chrysotus belongs to the subfamily Diaphorinae. Like other dolichopodid flies, members of this genus are characterized by their elongated legs and metallic coloration. Specific biological details for C. tarsalis remain poorly documented in the scientific literature.

  • Condylostylus caudatus

    Condylostylus caudatus is a species of long-legged fly in the family Dolichopodidae. It is a small, metallic-colored predatory fly commonly observed darting over vegetation in sunny habitats. As a member of this diverse family, it preys on other small insects. The species was first described by Wiedemann in 1830.

  • Condylostylus occidentalis

    Condylostylus occidentalis is a species of long-legged fly in the family Dolichopodidae. It is a small, predatory fly typically found in gardens, forest edges, and similar sunny habitats. The species exhibits the characteristic metallic coloration and elongated legs typical of its genus. Like other dolichopodids, it is known to be an active predator of other small insects.

  • Condylostylus pruinosus

    Condylostylus pruinosus is a species of long-legged fly in the family Dolichopodidae. Like other members of its genus, it is a small, predatory fly typically found in sunny, vegetated habitats. The species was described by Coquillett in 1904. As with most dolichopodids, species-level identification generally requires examination of male genitalia.

  • Condylostylus purpureus

    A small predatory fly in the family Dolichopodidae, characterized by metallic coloration and exceptionally long legs. As with most members of this diverse family, adults are active predators on other small insects. The species epithet "purpureus" suggests purple coloration, though specific descriptions of this species are limited in available sources. Condylostylus species are typically encountered in gardens, along forest edges, and similar sunny habitats where they dart over vegetation.

  • Condylostylus sipho

    long-legged fly

    Condylostylus sipho is a species of long-legged fly in the family Dolichopodidae. Like other members of this family, it is a predatory insect active in sunny, open habitats. The species is found in North America.

  • Dactylomyia lateralis

    Dactylomyia lateralis is a species of long-legged fly in the family Dolichopodidae, subfamily Neurigoninae. First described by Thomas Say in 1829, this species belongs to a genus of small predatory flies characterized by their elongated legs and typically metallic coloration. The species has been recorded in North America with over 340 observations documented on iNaturalist.

  • Diaphorus nigricans

    Diaphorus nigricans is a species of long-legged fly in the family Dolichopodidae, first described by Meigen in 1824. The species has a broad distribution across the Holarctic realm, extending southward into the Neotropics. Records indicate presence in Europe (Belgium, Denmark, Norway, Sweden), Brazil (Minas Gerais, Rio de Janeiro), and other regions. As a member of Dolichopodidae, it shares the family's characteristic elongated legs and metallic coloration typical of long-legged flies.

  • Diaphorus pseudopacus

    Diaphorus pseudopacus is a species of long-legged fly in the family Dolichopodidae, described by Robinson in 1964. It belongs to the genus Diaphorus, a group of small to medium-sized flies characterized by their elongated legs and metallic coloration. Very few observations of this species have been documented, with only 5 records on iNaturalist as of the source date. The specific epithet "pseudopacus" suggests a resemblance to or relationship with D. opacus, though the precise nature of this distinction requires examination of type specimens.

  • Dolichopus aethiops

    Dolichopus aethiops is a species of long-legged fly in the family Dolichopodidae, described by Van Duzee in 1921. Members of this genus are predatory flies characterized by their elongated legs and often metallic coloration. The species is part of a large and diverse family of small to medium-sized flies that are active hunters of other small insects. As with most Dolichopus species, positive identification typically requires examination of male genitalia.

  • Dolichopus aurifex

    Dolichopus aurifex is a species of long-legged fly in the family Dolichopodidae, described by Van Duzee in 1921. As a member of the genus Dolichopus, it shares characteristics with other species in this group, including elongated legs and metallic coloration typical of many dolichopodids. The species belongs to a diverse family of predatory flies known for their agility and complex courtship behaviors.

  • Dolichopus domesticus

    Dolichopus domesticus is a species of long-legged fly in the family Dolichopodidae, described by Van Duzee in 1921. Members of this genus are small, metallic-colored predatory flies known for their elongated legs and agile flight. Like other dolichopodids, they are predators of small insects. The specific epithet "domesticus" suggests an association with human-modified environments, though detailed ecological data for this particular species is limited.

  • Dolichopus gratus

    Dolichopus gratus is a species of long-legged fly in the family Dolichopodidae, described by Loew in 1861. As a member of this large and diverse family, it shares the characteristic predatory habits and metallic coloration typical of dolichopodids. The genus Dolichopus is one of the most species-rich genera in the family, with males possessing distinctive ornamented front tarsi used in courtship displays. Specific ecological details for D. gratus remain poorly documented in available sources.

  • Dolichopus longimanus

    Dolichopus longimanus is a species of long-legged fly in the family Dolichopodidae, described by Loew in 1861. As a member of the genus Dolichopus, it shares the characteristic elongated legs and metallic coloration typical of this diverse group of predatory flies. The species epithet 'longimanus' refers to its long forelegs or 'hands'. Like other dolichopodids, it is likely a small, active predator of other small insects.

  • Dolichopus longipennis

    Dolichopus longipennis is a species of long-legged fly in the family Dolichopodidae, described by Loew in 1861. Members of this family are known for their elongated legs and metallic coloration. The genus Dolichopus is one of the largest genera within Dolichopodidae.

  • Dolichopus occidentalis

    Dolichopus occidentalis is a species of long-legged fly in the family Dolichopodidae, described by Aldrich in 1893. It belongs to a large genus of predatory flies known for their elongated legs and metallic coloration. The specific epithet 'occidentalis' suggests a western geographic association. As with other members of Dolichopodidae, it is presumed to be predatory, though specific ecological details for this species remain poorly documented.

  • Dolichopus plumipes

    Dolichopus plumipes is a long-legged fly in the family Dolichopodidae, characterized by modified male mid tibiae bearing a longitudinal narrow dark streak. The species belongs to the D. plumipes species group, which comprises eleven Palaearctic species distinguished by modified male mid tibiae and/or mid basitarsi. It is a predatory fly active in sunny habitats.

  • Dolichopus porphyrops

    Dolichopus porphyrops is a species of long-legged fly in the family Dolichopodidae, first described by Van Duzee in 1921. Like other members of the genus Dolichopus, it belongs to a diverse group of small, predatory flies characterized by elongated legs and often metallic coloration. The species is known from limited distribution records in the northeastern United States.

  • Dolichopus pulchrimanus

    Dolichopus pulchrimanus is a species of long-legged fly in the family Dolichopodidae, first described by Bigot in 1888. The genus Dolichopus is one of the largest genera within this diverse family of predatory flies. Like other members of its genus, it possesses characteristically elongated legs and likely exhibits predatory behavior on small insects. Species-level identification within Dolichopus typically requires examination of male genitalia.

  • Dolichopus ramifer

    Dolichopus ramifer is a species of long-legged fly in the family Dolichopodidae, described by Loew in 1861. Members of the genus Dolichopus are predatory flies known for their elongated legs and often metallic coloration. Males of the genus possess modified front tarsi adorned with scale-like ornaments used in courtship displays. The species is part of a large and diverse family with complex identification requirements.

  • Dolichopus remipes

    long-legged fly

    Dolichopus remipes is a species of long-legged fly in the family Dolichopodidae, a diverse group of predatory flies characterized by their elongated legs and often metallic coloration. The species was described by Wahlberg in 1839 and is known from European localities. As with other members of the genus Dolichopus, it likely exhibits the family's characteristic predatory behavior on small insects, though specific ecological details for this species remain limited in published literature.

  • Dolichopus setifer

    Dolichopus setifer is a species of long-legged fly in the family Dolichopodidae, described by Loew in 1861. As a member of the genus Dolichopus, it shares traits with other species in this group, including elongated legs and predatory habits. Adults are typically found in moist habitats near water. The species has been documented in 46 iNaturalist observations, indicating it is encountered with moderate frequency by naturalists.

  • Dolichopus sincerus

    Dolichopus sincerus is a species of long-legged fly described by Melander in 1900. It belongs to the genus Dolichopus, a large group within the family Dolichopodidae. Like other members of its genus, it is presumed to be predatory on small insects. The species is known from limited records, with only one observation documented in iNaturalist.

  • Dolichopus tenuipes

    Dolichopus tenuipes is a species of long-legged fly in the family Dolichopodidae, first described by Aldrich in 1894. The genus Dolichopus is one of the largest genera of long-legged flies, with members characterized by elongated legs and often metallic coloration. Males of most Dolichopus species possess specialized scales on the front tarsi that function in courtship displays. The specific epithet 'tenuipes' refers to slender or thin feet, suggesting distinctive leg morphology.

  • Dolichopus tonsus

    Dolichopus tonsus is a species of long-legged fly in the family Dolichopodidae, described by Loew in 1861. As a member of the genus Dolichopus, it belongs to a diverse group of small, predatory flies known for their metallic coloration and elongated legs. The genus Dolichopus is characterized by males having modified front tarsi adorned with special scales used in courtship displays. Species-level identification within Dolichopus generally requires examination of male genitalia.

  • Gymnopternus annulatus

    Gymnopternus annulatus is a species of long-legged fly in the family Dolichopodidae, described by Van Duzee in 1926. The genus Gymnopternus belongs to the subfamily Dolichopodinae, a group of predatory flies known for their elongated legs and metallic coloration. This species is currently accepted in taxonomic databases but has no documented observations in community science platforms. The specific epithet 'annulatus' typically refers to ringed or banded markings, though the precise morphological features distinguishing this species from congeners remain poorly documented in accessible literature.

  • Gymnopternus difficilis

    Gymnopternus difficilis is a species of long-legged fly in the family Dolichopodidae, described by Loew in 1861. The genus Gymnopternus belongs to the subfamily Dolichopodinae, a diverse group of predatory flies commonly known as long-legged flies. Members of this family are typically associated with moist habitats and are known for their metallic coloration and elongated legs. This species is documented from a limited number of observations, with 7 records on iNaturalist suggesting it is rarely encountered or potentially underreported.

  • Gymnopternus exilis

    Gymnopternus exilis is a species of long-legged fly in the family Dolichopodidae, described by Loew in 1861. It belongs to the subfamily Dolichopodinae. The genus Gymnopternus comprises small to medium-sized predatory flies characterized by their elongated legs. Very little specific information is available about this particular species beyond its taxonomic placement.

  • Gymnopternus flavus

    Gymnopternus flavus is a species of long-legged fly in the family Dolichopodidae. It was described by Loew in 1861. The species belongs to a genus of predatory flies characterized by elongated legs and metallic coloration. Records indicate occurrence in Vermont and elsewhere in the United States.

  • Gymnopternus subulatus

    Gymnopternus subulatus is a species of long-legged fly described by Loew in 1861. It belongs to the family Dolichopodidae, a diverse group of small to medium-sized predatory flies known for their elongated legs. The genus Gymnopternus is part of the subfamily Dolichopodinae.

  • Gymnopternus vockerothi

    Gymnopternus vockerothi is a species of long-legged fly in the family Dolichopodidae, described by Robinson in 1964. It belongs to a genus characterized by distinctive wing venation and elongated legs typical of the family. The species epithet honors Canadian entomologist John R. Vockeroth.

  • Hydatostega plumbea

    Hydatostega plumbea is a species of long-legged fly in the family Dolichopodidae, described by Aldrich in 1911. It belongs to the subfamily Hydrophorinae, a group of predatory flies often associated with aquatic or semi-aquatic habitats. The genus Hydatostega is characterized by species with hydrophilous tendencies. Information on this species remains sparse, with only 5 observations recorded on iNaturalist as of the available data.

  • Hydatostega viridiflos

    Hydatostega viridiflos is a species of long-legged fly in the family Dolichopodidae. It is distributed across North America with three recognized subspecies showing distinct geographic patterns. The nominate subspecies occurs along the Atlantic coast of northeastern North America, while the other two subspecies are found in western regions.

  • Hydrophorus aestuum

    Hydrophorus aestuum is a species of long-legged fly in the family Dolichopodidae. Like other members of the genus Hydrophorus, it is adapted to semi-aquatic environments where it skates across water surfaces. The species was described by Loew in 1869. Adults are predatory on small insects and other invertebrates, including mosquito larvae.

  • Hydrophorus chrysologus

    Hydrophorus chrysologus is a species of long-legged fly in the family Dolichopodidae, subfamily Hydrophorinae. It belongs to a genus specialized for life on water surfaces, where adults skate across puddles, intermittent streams, and lake margins using surface tension. Like other dolichopodids, it is predatory on small insects and other arthropods. The species was described by Walker in 1849.

  • Liancalus querulus

    Liancalus querulus is a species of long-legged fly in the family Dolichopodidae, first described by Osten Sacken in 1877. As a member of this large and diverse family, it shares the characteristic elongated legs and metallic coloration typical of dolichopodids. The genus Liancalus includes species associated with moist habitats, though specific details for L. querulus remain limited in available sources.

  • Medetera aberrans

    Medetera aberrans is a species of long-legged fly in the family Dolichopodidae, described by Wheeler in 1899. It occurs in eastern North America, where adults are frequently encountered in wet grasslands and marshes. The species exhibits metallic green coloration with yellow legs, characteristic of many dolichopodids. It belongs to the aberrans species group within Medetera, a group that has alternatively been treated as the separate genus Saccopheronta.

  • Medetera apicalis

    Medetera apicalis is a species of long-legged fly in the family Dolichopodidae. It occurs in Europe and North America, with distribution records from Denmark, Norway, and Sweden. The species is associated with old-growth forest habitats, where adults have been observed beneath bark and on fruiting bodies of wood-decaying fungi such as Fomitopsis pinicola. As a member of the genus Medetera, it shares the characteristic behavior of perching on tree trunks in a distinctive tiptoe posture.

  • Medetera bistriata

    Medetera bistriata is a species of long-legged fly in the family Dolichopodidae. Adults are commonly observed on tree trunks in pine forests, where they adopt a characteristic tiptoe posture. The larvae are specialized predators of bark beetles, particularly species in the genera Dendroctonus and Ips. The species is recognized as an important biological control agent of the southern pine beetle (Dendroctonus frontalis).

  • Nanomyina barbata

    Nanomyina barbata is a species of long-legged fly (Diptera: Dolichopodidae) described by Aldrich in 1902. The species was originally described in the genus Chrysotimus before being transferred to Nanomyina. It belongs to the subfamily Peloropeodinae, a group of small to medium-sized predatory flies. Limited published information exists regarding its biology and ecology.

  • Neoparentia caudata

    Neoparentia caudata is a species of long-legged fly in the family Dolichopodidae, subfamily Sympycninae. First described by Van Duzee in 1917, this species is currently accepted in the genus Neoparentia. The genus Neoparentia is part of the diverse Dolichopodidae family, which comprises thousands of species of predatory flies known for their elongated legs. Very little specific information is available about the biology or ecology of this particular species.

  • Neurigona aestiva

    Neurigona aestiva is a species of long-legged fly in the family Dolichopodidae. It was described by Van Duzee in 1913. Very few observations of this species exist in public databases, with only four records documented on iNaturalist. The genus Neurigona belongs to a diverse family of predatory flies characterized by their elongated legs and metallic coloration.

  • Neurigona deformis

    Neurigona deformis is a species of long-legged fly in the family Dolichopodidae, described by Van Duzee in 1913. The genus Neurigona is a large and widespread group within this family, though individual species are often poorly documented. Like other dolichopodids, members of this genus are generally associated with moist terrestrial habitats. Specific biological details for N. deformis remain limited in published literature.

  • Paraclius pumilio

    Paraclius pumilio is a species of long-legged fly (Dolichopodidae) described by Loew in 1872. It belongs to the genus Paraclius, a group of predatory flies within the subfamily Dolichopodinae. The species has been documented through limited iNaturalist observations, suggesting it is either rare, under-recorded, or restricted in range. As with other dolichopodids, it likely occupies moist habitats near water or vegetation.

  • Parathalassius abela

    Parathalassius abela is a species of long-legged fly (Diptera: Dolichopodidae) described from the Nearctic Region in 2017. It was one of nine new species described in a revision of the genus Parathalassius. The species has been characterized using COI mitochondrial DNA barcode sequences and included in morphological phylogenetic analyses. As a member of the subfamily Parathalassiinae, it belongs to a group associated with sandy coastal habitats, though specific ecological details for this species remain limited.

  • Pelastoneurus kansensis

    Pelastoneurus kansensis is a species of long-legged fly in the family Dolichopodidae, first described by Aldrich in 1894. The specific epithet "kansensis" indicates the species was described from Kansas. As a member of the Dolichopodidae, it belongs to a diverse family of predatory flies commonly known as long-legged flies or dance flies. The genus Pelastoneurus is part of the subfamily Dolichopodinae.

  • Pelastoneurus longicauda

    Pelastoneurus longicauda is a species of long-legged fly in the family Dolichopodidae, a group characterized by elongated legs and metallic coloration. The species was described by Loew in 1861. Beyond basic taxonomic placement, specific biological details for this species remain undocumented in available sources.

  • Pelastoneurus vagans

    Pelastoneurus vagans is a species of long-legged fly (family Dolichopodidae) first described by Loew in 1861. As a member of the subfamily Dolichopodinae, it shares the characteristic elongated legs and slender body typical of this diverse family of predatory flies. The species is documented in entomological collections and databases, with 173 observations recorded on iNaturalist.

  • Plagioneurus univittatus

    Plagioneurus univittatus is a species of long-legged fly in the family Dolichopodidae. It is the sole member of the genus Plagioneurus and the only species in the subfamily Plagioneurinae. The species was described by Loew in 1857. It is distinguished from all other dolichopodid flies by its unique subfamily-level classification.

  • Rhaphium lugubre

    Rhaphium lugubre is a species of long-legged fly in the family Dolichopodidae, described by Loew in 1861. As a member of the Rhaphiinae subfamily, it belongs to a diverse group of predatory flies known for their elongated legs and agile flight. The genus Rhaphium contains numerous species distributed across the Holarctic region, though specific details about this particular species remain limited in published literature.

  • Rhaphium melampus

    Rhaphium melampus is a species of long-legged fly in the family Dolichopodidae, subfamily Rhaphiinae. The species was described by Hermann Loew in 1861. Like other members of the genus Rhaphium, it belongs to a group of predatory flies characterized by their elongated legs. The species has been documented in iNaturalist with 65 observations, suggesting it is not extremely rare, though detailed biological studies appear limited.

  • Scellus virago

    Scellus virago is a species of long-legged fly in the family Dolichopodidae, first described by Aldrich in 1907. Members of this genus are associated with aquatic or semi-aquatic habitats. As with other Dolichopodidae, adults are predatory. The species is known from limited observational records.

  • Sciapus platypterus

    Sciapus platypterus is a species of long-legged fly in the family Dolichopodidae. The species was first described by Fabricius in 1805 under the basionym Dolichopus platypterus. It occurs across the Palearctic region with confirmed records from Belgium. As a member of Dolichopodidae, it belongs to a family known for predatory habits and distinctive elongated legs.

  • Systenus

    Systenus is a genus of long-legged flies (Dolichopodidae: Medeterinae) characterized by larvae that develop in dendrotelme habitats—water-filled hollow tree cavities lined with organic soil. The genus is globally uncommon in collections, likely due to its arboreal adult associations and specialized larval habitat requirements. Despite this rarity, some localities show remarkable species richness; for example, eight species were collected from a single site in Costa Rica. The genus occurs in both tropical and temperate regions, with records from Central America, South America, Europe, and North America.

  • Systenus albimanus

    Systenus albimanus is a species of long-legged fly in the family Dolichopodidae, described by Wirth in 1952. It belongs to the subfamily Medeterinae, a group of small to medium-sized predatory flies commonly found in moist habitats. The species is characterized by its distinctive white fore tarsi, referenced in its specific epithet 'albimanus' (white hand). Like other dolichopodids, it is presumed to be predatory as both adult and larval stages, though specific ecological studies on this species are limited.

  • Systenus eucercus

    Systenus eucercus is a species of long-legged fly (Dolichopodidae) described by Steyskal in 1970. It belongs to the subfamily Medeterinae, a group characterized by slender bodies and elongated legs. The genus Systenus is distributed across the Holarctic region, with species often associated with moist terrestrial habitats. As with most dolichopodids, adults are predatory and contribute to insect population control in their ecosystems.

  • Tachytrechus dilaticosta

    Tachytrechus dilaticosta is a species of long-legged fly in the family Dolichopodidae, first described by Van Duzee in 1927. The genus Tachytrechus belongs to a diverse family of small predatory flies known for their metallic coloration and agile flight. Like other dolichopodids, members of this genus are active predators on other small insects. The species is rarely recorded, with minimal observational data available.

  • Tachytrechus floridensis

    Tachytrechus floridensis is a species of long-legged fly in the family Dolichopodidae, described by Aldrich in 1896. The genus Tachytrechus belongs to the diverse subfamily Dolichopodinae, which includes small to medium-sized predatory flies often found in sunny habitats. Members of this genus share the family's characteristic metallic coloration and elongated legs. The specific epithet "floridensis" indicates a connection to Florida, though detailed natural history information for this particular species remains limited in available sources.

  • Tachytrechus moechus

    Tachytrechus moechus is a species of long-legged fly in the family Dolichopodidae, described by Loew in 1861. Members of this genus are part of a diverse family of small to medium predatory flies known for their metallic coloration and agile flight. Like other dolichopodids, they are predatory on small insects. The genus Tachytrechus is distinguished from related genera by specific morphological features of the male genitalia and leg ornamentation.

  • Tachytrechus sanus

    Tachytrechus sanus is a species of long-legged fly in the family Dolichopodidae, described by Osten Sacken in 1877. As a member of this diverse family, it shares the characteristic elongated legs and predatory habits typical of dolichopodids. The genus Tachytrechus is known for species that inhabit ground-level and open habitats rather than aquatic environments.

  • Thrypticus willistoni

    Thrypticus willistoni is a species of long-legged fly in the family Dolichopodidae, first described by Wheeler in 1890. The genus Thrypticus comprises small to minute flies associated with grasses and sedges, with larvae that develop within plant stems. Adults are characterized by reduced wing venation and distinctive leg proportions typical of the family.

  • Xanthochlorus helvinus

    Xanthochlorus helvinus is a species of long-legged fly in the family Dolichopodidae, described by Loew in 1861. The genus Xanthochlorus is characterized by yellowish-green coloration, reflected in its name (from Greek xanthos 'yellow' and chloros 'green'). As a member of Dolichopodidae, it belongs to one of the largest families of Diptera, known for their elongated legs and predatory habits.