Sandhills Cellophane Bee
Colletes ultravalidus is a solitary bee species in the family Colletidae, described in 2016. As a member of the genus Colletes, it shares the characteristic behavior of lining underground brood cells with a cellophane-like secretion from the Dufour's gland. The species is known from the Sandhills region of North Carolina.
Baker's Phacelia-Shortface
Conanthalictus bakeri is a species of sweat bee (Halictidae) described by Crawford in 1907. It is endemic to North America and is commonly known as Baker's Phacelia-Shortface. The genus Conanthalictus belongs to the subfamily Rophitinae, a group of bees often associated with specific host plants.
Ochraceous Chimney Bee
Diadasia ochracea, commonly known as the ochraceous chimney bee, is a solitary ground-nesting bee in the family Apidae. The species is distributed across Central America and North America. As a member of the genus Diadasia, it is likely a pollen specialist, though specific host plants for this species are not documented in available sources.
Dianthidium curvatum sayi is a subspecies of resin bee in the family Megachilidae, described by Cockerell in 1907. As a member of the genus Dianthidium, it belongs to a group of bees known for constructing nests using plant resins and other materials rather than cutting leaves like their relatives in the genus Anthidium. The subspecies designation indicates geographic or morphological variation within the broader species D. curvatum.
Dianthidium pudicum pudicum is a subspecies of resin bee in the family Megachilidae. Like other members of the genus Dianthidium, it constructs nests using plant resins, creating distinctive resin plugs and partitions within pre-existing cavities such as hollow twigs or beetle borings. The subspecies was described by Cresson in 1879 and occurs in North America.
Northeastern Pebble Bee
Dianthidium simile is a solitary bee species in the family Megachilidae, commonly known as the Northeastern Pebble Bee. It belongs to a group of bees known as resin bees, mason bees, and leafcutter bees, reflecting the diverse nesting materials used by members of this family. The species is native to North America, with confirmed records from the northeastern United States including Vermont. Like other Dianthidium species, it constructs nests using plant resins and other materials, and is subject to parasitism by specialized wasps such as leucospids.
Dieunomia bolliana is a species of sweat bee in the family Halictidae, subfamily Nomiinae. It was originally described as Nomia bolliana by Cockerell in 1910 and later transferred to the genus Dieunomia. The genus Dieunomia comprises medium to large bees that are often associated with wetland habitats and are known to be pollen specialists on certain plant families. Records indicate presence in North America, though detailed biological information remains limited.
Giant Sweat Bee
Dieunomia heteropoda is a large sweat bee in the family Halictidae, commonly known as the Giant Sweat Bee. It occurs in Central America and North America. The species nests in aggregations in hard-packed soil, with males exhibiting patrolling and digging behaviors to locate females at nest entrances. Two subspecies are recognized: D. h. heteropoda and D. h. kirbii.
Arizona Nomia
Dieunomia nevadensis arizonensis, known as the Arizona Nomia, is a subspecies of sweat bee in the family Halictidae. It is a ground-nesting bee distributed across the southwestern United States and adjacent regions of Mexico. The subspecies was first described by Cockerell in 1899 and is distinguished from the nominate subspecies by geographic range and subtle morphological differences. Like other members of the genus Dieunomia, it is a specialist pollinator associated with particular host plants.
Southwestern Shortface
Dufourea australis is a species of sweat bee in the family Halictidae, first described by Michener in 1937. The species is commonly known as the Southwestern Shortface. It belongs to the subfamily Rophitinae, a group of bees characterized by their relatively short faces. Based on the specific epithet and common name, this species appears to be associated with southwestern regions of North America, though detailed ecological information remains limited in available sources.
Black Shortface
Dufourea maura is a species of sweat bee in the family Halictidae, commonly known as the Black Shortface. It is found in North America. Like other members of the genus Dufourea, it is a small bee associated with the tribe Rophitini within the subfamily Rophitinae. The species was described by Ezra Townsend Cresson in 1878.
Phacelia Shortface
Dufourea mulleri is a small sweat bee in the family Halictidae, commonly known as the Phacelia Shortface. It is a specialist pollinator with a documented association with plants in the genus Phacelia. The species occurs in North America and is one of the more frequently observed members of its genus.
Dufourea oenotherae is a species of short-faced bee in the family Halictidae, described by Timberlake in 1939. The specific epithet 'oenotherae' indicates an association with evening primrose (Oenothera), suggesting a specialized host relationship. Members of the genus Dufourea are typically oligolectic, collecting pollen from a narrow range of host plants. The species is known from North America.
Carolina Cellophane-cuckoo Bee
Epeolus carolinus is a species of cuckoo bee in the family Apidae, first described by Mitchell in 1962. As a cleptoparasitic bee, it lays eggs in the nests of host bee species rather than constructing its own nests or collecting pollen. The species is native to North America and is one of approximately 43 recognized Epeolus species on the continent. Like other members of its genus, it is associated with polyester bees (Colletes) as hosts.
Interrupted Cellophane-cuckoo Bee
Epeolus interruptus is a cleptoparasitic (cuckoo) bee in the family Apidae, native to North America. First described by Robertson in 1900, this species invades the nests of polyester bees (genus Colletes) to lay its eggs. Like other cuckoo bees, females lack the branched body hairs used for pollen collection and instead rely on host bees to provision their offspring. The species exhibits reduced pilosity compared to non-parasitic bees, giving it a wasp-like appearance.
Ericrocis is a genus of kleptoparasitic bees in the family Apidae, commonly known as centris-cuckoo bees. The genus comprises at least four described species distributed in the southwestern United States and Mexico. As cuckoo bees, Ericrocis species do not construct their own nests but instead lay eggs in the nests of host bees, primarily in the genus Centris. The genus was established by Cresson in 1887 and belongs to the tribe Ericrocidini.
Common Oil-digger-Cuckoo
Ericrocis lata is a cleptoparasitic bee species in the family Apidae, commonly known as the Common Oil-digger-Cuckoo. As a member of the tribe Ericrocidini, it is a specialized brood parasite that targets oil-collecting bees. The species occurs in both Central and North America. It was first described by Cresson in 1879.
Painted Oil-digger-Cuckoo
Ericrocis pintada is a species of cleptoparasitic bee in the family Apidae, tribe Ericrocidini. It is commonly known as the Painted Oil-digger-Cuckoo. The species is native to Central America and North America. Like other members of its tribe, it is presumed to be a nest parasite of oil-collecting bees in the genus Centris, though specific host records for this species are limited.
A subspecies of long-horned bee in the genus Eucera, native to North America. Males possess notably elongated antennae, a defining trait of the genus. Like other Eucera species, this subspecies is a solitary ground-nesting bee and likely contributes to pollination of flowering plants in its range. Specific biological details for this subspecies remain poorly documented in published literature.
Long-horned Bee
Eucera fulvitarsis is a species of long-horned bee in the family Apidae, native to North America. Males are distinguished by exceptionally long antennae relative to body size, a characteristic feature of the genus Eucera. The species was originally described as Melissodes fulvitarsis by Cresson in 1878 and later transferred to the genus Eucera. Two subspecies are recognized: E. f. annae and the nominate E. f. fulvitarsis. Like other members of the tribe Eucerini, this species is solitary and nests in the ground.
Hook-spurred Longhorn
Eucera hamata is a long-horned bee in the family Apidae, found in North America. Males possess exceptionally long antennae, a characteristic trait of the genus Eucera. The species belongs to a group of solitary bees that nest underground and forage primarily on legume flowers.
Eucera lutziana is a species of long-horned bee in the family Apidae, described by Cockerell in 1933. As a member of the genus Eucera, it belongs to the tribe Eucerini, a group of solitary bees commonly known as long-horned bees due to the exceptionally long antennae of males. The species is recorded from North America, though specific details about its biology and ecology remain limited in published sources.
Exomalopsis analis is a small bee in the family Apidae, tribe Exomalopsini. It occurs from the southern United States through Central America to Argentina. Like other Exomalopsis species, it is a solitary ground-nesting bee. The species has been documented visiting flowers of various plants, including agricultural crops.
Solanum Exomalopsis
Exomalopsis solani is a bee species in the family Apidae, first described by Cockerell in 1896. It belongs to the tribe Exomalopsini, a group of small to medium-sized bees often associated with solitary or communal nesting habits. The species is documented from Central America and North America. Limited observational data exists, with 11 records on iNaturalist. The specific epithet 'solani' suggests a potential association with Solanum plants, though this relationship has not been formally documented in the provided sources.
Exomalopsis tibialis is a species of bee in the family Apidae, described by Timberlake in 1980. It belongs to the tribe Exomalopsini, a group of small to medium-sized bees commonly known as oil-collecting bees due to their specialized floral associations. The species is known from Middle America and North America.
Worthy Longhorn
Florilegus condignus is a long-horned bee in the family Apidae, commonly known as the Worthy Longhorn. It is an uncommon species distributed across the Caribbean, Central America, and North America. The species is notable for its ecological importance as a pollinator of alfalfa and its association with wetland habitats containing pickerelweed.
Exiled Longhorn
Gaesischia exul is a species of longhorn bee in the family Apidae, tribe Eucerini. Described in 1955 by Michener, LaBerge and Moure, this bee is known by the common name 'Exiled Longhorn'. As a member of the Eucerini, it belongs to a group of solitary, ground-nesting bees that are important pollinators. The specific epithet 'exul' (Latin for 'exile' or 'wanderer') likely refers to some aspect of its distribution or behavior, though the original etymology is not documented in available sources.
Arapaho Metallic-Furrow bee
Halictus confusus arapahonum is a subspecies of sweat bee in the family Halictidae, described by Cockerell in 1906. As a member of the genus Halictus, it is likely a primitively eusocial or solitary ground-nesting bee. The nominate species Halictus confusus is known as the Confusing Furrow Bee or Metallic-Furrow bee. This subspecies is distinguished by geographic range and subtle morphological differences from other populations of H. confusus. Like other halictids, adults are generalist pollinators that visit diverse flowering plants.
Clarkia Evening Bee
Hesperapis regularis is an oligolectic bee endemic to California, specialized in collecting pollen exclusively from flowers of the genus Clarkia. Unlike most bees, it is active in the evening hours. Females construct underground nests where they provision chambers with a mixture of Clarkia pollen and nectar for larval development.
Woollystar Evening Bee, Hugelia Evening Bee
Hesperapis rufipes is a species of hairy-footed bee in the family Melittidae, one of the most primitive families of bees. The species is found in North America and is known by the common names Woollystar Evening Bee and Hugelia Evening Bee. Like other members of its genus, it exhibits morphological adaptations associated with its common name, including dense hair on the legs. The species is part of a small genus of specialist bees with restricted distributions and specific host-plant associations.
Tiny Furrowed-Cuckoo
Holcopasites minimus is a species of cuckoo bee in the family Apidae, first described by Linsley in 1943. It belongs to the subfamily Nomadinae, a group of kleptoparasitic bees that lay their eggs in the nests of other bee species. The species occurs across a broad geographic range from Mexico to Canada. Like other members of the genus Holcopasites, it is presumed to be a nest parasite of ground-nesting bees, though specific host relationships remain poorly documented.
White-fronted Small-Mason
Hoplitis albifrons is a solitary mason bee in the family Megachilidae, tribe Osmiini. It is native to North America, with documented records from the northeastern United States including Vermont. As a member of the osmiine bees, it likely constructs nests in pre-existing cavities and uses mud or other materials to partition brood cells, though specific natural history details for this species remain poorly documented in available sources.
Pacific Black Small-Mason
Hoplitis albifrons maura is a subspecies of mason bee in the family Megachilidae, native to western North America. It belongs to a group of solitary bees known for nesting in pre-existing cavities and constructing brood cells from collected materials. As a member of the osmiine bees, it contributes to pollination services in its native range. The subspecies designation indicates geographic variation within the broader H. albifrons species complex.
Hoplitis bullifacies is a species of solitary bee in the family Megachilidae, first described by Michener in 1947. It belongs to the diverse genus Hoplitis, which comprises numerous small to medium-sized mason bees native to the Northern Hemisphere. The species is recorded from North America, though specific details about its biology and ecology remain poorly documented in published literature.
Hoplitis bunocephala is a solitary bee species in the family Megachilidae, described by Michener in 1947. The species is native to North America and belongs to the diverse genus Hoplitis, which includes numerous mason bee species. Like other members of Megachilidae, females carry pollen on scopae located on the underside of the abdomen rather than on the hind legs.
Hoplitis elongaticeps is a solitary bee species in the family Megachilidae, first described by Michener in 1947. It belongs to the diverse genus Hoplitis, which comprises numerous mason bee species across the Northern Hemisphere. The species is known to occur in North America, though specific details about its biology and ecology remain limited in available sources.
Pacific Green Small-Mason
Hoplitis fulgida platyura is a subspecies of mason bee in the family Megachilidae. It is native to western North America, where it occurs from British Columbia to California. The subspecies is distinguished from the nominate form by structural differences in the male antennae and subtle coloration differences. Like other members of the genus Hoplitis, females construct nests in pre-existing cavities and line brood cells with collected materials.
Mimic Small-Mason
Hoplitis hypocrita is a solitary bee species in the family Megachilidae, commonly known as the Mimic Small-Mason. It belongs to the tribe Osmiini, which includes many mason bee species that nest in pre-existing cavities. The species was originally described by Cockerell in 1906 as Osmia hypocrita before being transferred to the genus Hoplitis. It is native to North America.
Truncate Small-Mason
Hoplitis truncata is a solitary bee species in the family Megachilidae, commonly known as the Truncate Small-Mason. It is part of the diverse osmiine bee group, which includes many species that nest in pre-existing cavities and use various materials to construct their nests. The species has been recorded in North America and parts of Southern Asia, though detailed biological information remains limited.
eastern masked bee
Hylaeus affinis, commonly known as the eastern masked bee, is a small solitary bee in the family Colletidae. It is native to North America and belongs to the genus Hylaeus, whose members are often called masked bees or yellow-faced bees due to their distinctive facial markings. Like other Hylaeus species, it is nearly hairless and resembles small wasps in appearance. The species nests in pre-existing cavities and transports pollen and nectar internally rather than on body hairs.
Hylaeus episcopalis coquilletti is a subspecies of yellow-faced bee in the family Colletidae. As with other members of the genus Hylaeus, this bee is nearly hairless and wasp-like in appearance, lacking the dense hair typical of most bees. Females have distinctive yellow or white markings on the inner margin of each eye, while males have the entire face colored yellow or white. These solitary bees nest in pre-existing cavities such as hollow stems or twigs, lining cells with a natural polymer secretion. The subspecies epithet "coquilletti" honors the entomologist James Charles Coquillett.
Hairy masked bee
Hylaeus hyalinatus is a species of masked bee in the family Colletidae. It is native to Europe, including Great Britain, and has been introduced to North America where it is considered invasive. Like other members of genus Hylaeus, it is nearly hairless and wasp-like in appearance, with females transporting pollen and nectar internally rather than on body hairs.
Mesilla Masked Bee
Hylaeus mesillae, commonly known as the Mesilla Masked Bee, is a solitary bee species in the family Colletidae. It is distributed across Central America and North America. Like other members of the genus Hylaeus, it is nearly hairless and often mistaken for small wasps. The species was first described by Cockerell in 1896 and includes three recognized subspecies.
Modest masked bee
Hylaeus modestus citrinifrons is a subspecies of the modest masked bee, a small, nearly hairless solitary bee in the family Colletidae. It is part of a genus commonly known as yellow-faced or masked bees due to distinctive facial markings. The species H. modestus has been documented visiting flowers in garden and agricultural settings. Like other Hylaeus, it is a cavity-nesting bee that uses pre-existing hollow stems or twigs rather than excavating its own burrows.
modest masked bee, yellow-faced bee
Hylaeus modestus modestus is a subspecies of the modest masked bee, a small, nearly hairless solitary bee in the family Colletidae. Like other Hylaeus species, it lacks scopal hairs for pollen transport and instead carries nectar and pollen internally in a crop, regurgitating food stores at the nest. The subspecies has been recorded in Canada and the United States, including a notable gynandromorph specimen from Ontario. It is one of approximately 50 Hylaeus species in North America and belongs to the subgenus Prosopis.
Admirable Sweat Bee
Lasioglossum admirandum is a small sweat bee in the subgenus Dialictus, one of 84 metallic Dialictus species revised for Canada. Originally described by Sandhouse in 1924, it was synonymized with D. perspicuus before being restored as the senior synonym. Like other Dialictus, it belongs to the most commonly collected bee group in North America and exhibits diverse social systems. The species is part of the largest bee genus globally, with over 1,700 Lasioglossum species worldwide.
white-winged metallic-sweat bee, white-winged sweat bee
Lasioglossum albipenne is a metallic sweat bee in the family Halictidae, commonly known as the white-winged metallic-sweat bee. It belongs to the subgenus Dialictus, a large and taxonomically challenging group of small bees. The species was originally described by Robertson in 1890 and has undergone taxonomic revision, with several synonymies resolved in recent Canadian treatments. Like other members of its genus, it is a ground-nesting bee and likely contributes to pollination in its native range.
Anomalous Metallic Sweat Bee
Lasioglossum anomalum is a small sweat bee in the family Halictidae, one of over 1,700 species in the genus Lasioglossum. As with other members of this large genus, it is a ground-nesting solitary bee. The species occurs in North America, with confirmed records from Vermont and broader distribution across the continent. Like related Lasioglossum species, it likely exhibits metallic coloration typical of many halictid bees.
Atwood's Sweat Bee
Lasioglossum atwoodi is a species of sweat bee described by Gibbs in 2010 as part of a comprehensive taxonomic revision of metallic Dialictus bees in Canada. It belongs to the subgenus Dialictus, the most commonly collected bee group in North America. As a member of this large and diverse genus, it likely exhibits the small size and metallic coloration typical of many Dialictus species, though specific biological details remain undocumented in published literature.
Bruner's Sweat Bee, Bruner's Dialictus
Lasioglossum bruneri is a species of sweat bee in the family Halictidae, commonly known as Bruner's sweat bee or Bruner's dialictus. It belongs to the large genus Lasioglossum, which is among the most diverse bee genera globally. The species is native to North America, with documented occurrences in the northeastern United States including Vermont. Like other halictid bees, it is a wild pollinator that contributes to ecosystem function, though specific ecological details for this species remain limited in published literature.