Dialictus
Guides
Lasioglossum actinosum
sweat bee
Lasioglossum actinosum is a species of sweat bee in the family Halictidae, one of over 1,700 species in the genus Lasioglossum. Like other halictids, it is likely a ground-nesting solitary or semi-social bee. The species was described by Sandhouse in 1924 and occurs in North America. Members of this genus are frequently encountered in bee monitoring studies using bowl traps, though specific ecological details for this species remain poorly documented.
Lasioglossum admirandum
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.
Lasioglossum albipenne
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.
Lasioglossum atwoodi
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.
Lasioglossum cattellae
A small metallic sweat bee in the subgenus Dialictus, originally described from the eastern United States. The species was previously known under the synonym Dialictus alternatus until synonymized by Gibbs (2010). Like other members of this large subgenus, it is a ground-nesting bee with likely solitary or weakly social behavior.
Lasioglossum cressonii
Cresson's Sweat Bee
Lasioglossum cressonii is a small, metallic sweat bee native to North America. The species exhibits eusocial colony organization with queens, workers, and reproductive broods. It is an important pollinator of native plants and agricultural crops, including apple trees. First described by Charles Robertson in 1890, this bee nests primarily in soil or wood in low-elevation areas.
Lasioglossum ephialtum
nightmare sweat bee
Lasioglossum ephialtum is a sweat bee in the family Halictidae, described as a new species in 2010 by Jason Gibbs. It belongs to the subgenus Dialictus, a diverse group of small bees commonly collected across North America. The species is known by the common name 'nightmare sweat bee.' As with other Dialictus species, it is likely a pollinator, though specific biological details remain poorly documented.
Lasioglossum laevissimum
Very Smooth Sweat Bee
Lasioglossum laevissimum is a small metallic sweat bee in the subgenus Dialictus, one of the most species-rich and taxonomically challenging groups of North American bees. The species was described by Smith in 1853 and has accumulated seven synonymies due to historical difficulties in distinguishing Dialictus species. It occurs in Canada and the northern United States, where it nests in soil and visits flowers for pollen and nectar. Like other Dialictus, it is likely a solitary or weakly social ground-nesting bee with females provisioning individual brood cells.
Lasioglossum leucocomum
Lasioglossum leucocomum is a small metallic sweat bee in the subgenus Dialictus, one of the largest and most taxonomically challenging bee genera in North America. The species was resurrected from synonymy in a 2010 revision of Canadian Dialictus, which recognized it as a valid species distinct from previously confused names. Like other Dialictus, it is a ground-nesting bee with variable social organization, ranging from solitary to small-colony sociality. The species contributes to pollination services in its native range.
Lasioglossum lineatulum
Lineated Metallic Sweat Bee
Lasioglossum lineatulum is a metallic sweat bee in the subgenus Dialictus, one of the most commonly collected bee groups in North America. The species was described by Crawford in 1906 and has undergone taxonomic revision, with Halictus (Chloralictus) latus and H. (C.) unicus synonymized under this name. As a member of the largest bee genus, it contributes to the high abundance of Lasioglossum species frequently captured in bee monitoring surveys.
Lasioglossum mesillense
Lasioglossum mesillense is a 'red-tailed' sweat bee in the subgenus Lasioglossum (Dialictus), originally described from New Mexico in 1898. The species was recently revised in a comprehensive treatment of western Nearctic Dialictus, during which two junior synonyms were newly recognized and a lectotype was designated. As with other members of this large subgenus, it is a small, ground-nesting bee. The specific epithet references Mesilla, New Mexico, the type locality.
Lasioglossum michiganense
Michigan sweat bee
Lasioglossum michiganense is a species of sweat bee in the family Halictidae, first described by Mitchell in 1960. Like other members of the genus Lasioglossum, it is a small bee that may be attracted to human perspiration for the salts and minerals it contains. The species is part of the largest genus of bees, which includes over 1,700 species globally. Specific ecological details for this species remain limited in published literature.
Lasioglossum nelumbonis
water-lily sweat bee
Lasioglossum nelumbonis is a small sweat bee in the family Halictidae, commonly known as the water-lily sweat bee. It belongs to the largest genus of bees, with over 1,700 species worldwide. Like other members of the genus, it is a ground-nesting bee. The specific epithet 'nelumbonis' suggests an association with water lilies (Nelumbo), though direct ecological documentation is limited.
Lasioglossum nigroviride
Black-and-green Metallic-Sweat bee, black-and-green dialictus sweat bee
Lasioglossum nigroviride is a small metallic sweat bee in the family Halictidae, placed in the subgenus Dialictus. The species was described by Graenicher in 1911 and is one of numerous metallic Lasioglossum species in North America. Halictus (Chloralictus) richardsoni Cockerell was synonymized with this species in Gibbs's 2010 revision of Canadian Dialictus. Like other members of this large genus, it is a ground-nesting bee with likely solitary or semi-social behavior.
Lasioglossum nymphale
sweat bee
Lasioglossum nymphale is a species of sweat bee in the family Halictidae, first described by Smith in 1853. As a member of the large genus Lasioglossum, it belongs to a group of small, often metallic bees commonly known as sweat bees due to their attraction to human perspiration. The species occurs in North America and shares the general biology of other Lasioglossum species, including ground-nesting behavior and solitary or semi-social nesting habits.
Lasioglossum oblongum
Oblong Sweat Bee
Lasioglossum oblongum is a species of sweat bee in the family Halictidae. It belongs to the largest genus of bees, Lasioglossum, which contains over 1,700 species. As a member of the subgenus Dialictus, it is one of many small, often metallic bees that are frequently encountered in bee surveys and monitoring efforts. The species is documented from North America, with confirmed records from Vermont.
Lasioglossum oceanicum
sweat bee
Lasioglossum oceanicum is a species of sweat bee in the family Halictidae, first described by Cockerell in 1916. Like other members of the genus Lasioglossum, it is a small bee with metallic coloration typical of many halictids. The species belongs to one of the most species-rich bee genera globally, with over 1,700 described species. As with many Lasioglossum species, detailed natural history information for L. oceanicum specifically is limited in available literature.
Lasioglossum pacificum
Pacific Sweat Bee
Lasioglossum pacificum is a small sweat bee in the family Halictidae, one of more than 1,700 species in the genus Lasioglossum. The species was described by Cockerell in 1898 and is native to western North America. Like other halictids, it is a ground-nesting bee that visits flowers for pollen and nectar.
Lasioglossum perpunctatum
Densely Punctured Sweat Bee
Lasioglossum perpunctatum is a metallic sweat bee in the subgenus Dialictus, one of the most diverse and commonly collected bee groups in North America. The species was originally described by Ellis in 1913 and has undergone taxonomic revision, with two former species (D. highlandicus and D. junaluskensis) now synonymized with it. Like other Dialictus, it exhibits varied social systems ranging from solitary to eusocial. As a member of the largest bee genus, it contributes to pollination services in its native range.
Lasioglossum petrellum
sweat bee
Lasioglossum petrellum is a species of sweat bee in the family Halictidae, originally described by Cockerell in 1903. It belongs to the subgenus Dialictus, one of the largest and most taxonomically challenging groups within the genus Lasioglossum. Recent integrative taxonomic research using DNA barcoding and morphology has revealed that L. petrellum represents a cryptic species complex, with four new species described from within its former range. The species is native to North America and Middle America.
Lasioglossum planatum
Flattened Sweat Bee
Lasioglossum planatum is a small sweat bee in the subgenus Dialictus, resurrected from synonymy in a 2010 taxonomic revision of Canadian metallic Lasioglossum. It is one of over 1,700 species in the genus Lasioglossum, the largest genus of bees. Like other Dialictus species, it is a ground-nesting bee with variable social behavior. The species occurs in northeastern North America, with confirmed records from Vermont.
Lasioglossum quebecense
Quebec Sweat Bee
Lasioglossum quebecense is a species of sweat bee in the family Halictidae, native to North America. As a member of the genus Lasioglossum—one of the largest bee genera with over 1,700 species—it contributes to pollination services in its native range. The species was first described by Crawford in 1907. Like other sweat bees, it is attracted to human perspiration for moisture and salts.
Lasioglossum semicaeruleum
sweat bee
Lasioglossum semicaeruleum is a small metallic sweat bee in the family Halictidae, subgenus Dialictus. It was described by Cockerell in 1895 and occurs in North America. The species was revised taxonomically in 2010, with two junior synonyms synonymized under it. Like other members of the large genus Lasioglossum, it is a ground-nesting bee and contributes to pollination services in its habitat.
Lasioglossum smilacinae
Mayflower Sweat Bee
Lasioglossum smilacinae, commonly known as the Mayflower Sweat Bee, is a species of sweat bee in the family Halictidae. It belongs to the large genus Lasioglossum, which contains over 1,700 species of small bees often referred to as sweat bees due to their attraction to human perspiration. As a member of the subgenus Dialictus, this species exhibits traits typical of that group. The species was first described by Robertson in 1897 and occurs in North America.
Lasioglossum versans
Friendless Sweat Bee
Lasioglossum versans is a species of sweat bee in the family Halictidae, subgenus Dialictus. It was described by Lovell in 1905 and is one of 84 metallic Dialictus species treated in the Canadian taxonomic revision. The species is known from North America with records from Vermont. Like other members of the large genus Lasioglossum, it is a ground-nesting bee with likely solitary or semi-social nesting biology.
Lasioglossum versatum
Experienced Sweat Bee
Lasioglossum versatum is a sweat bee species in the family Halictidae, subgenus Dialictus, native to North America. It was described by Robertson in 1902 and has undergone taxonomic revision, with three synonymies proposed in a 2010 Canadian revision. Like other Dialictus species, it is small and likely metallic, though specific ecological details remain poorly documented. The species contributes to the diverse assemblage of Lasioglossum bees that dominate many North American bee surveys.
Lasioglossum weemsi
Weems's Sweat Bee
Lasioglossum weemsi is a small sweat bee in the subgenus Dialictus, one of the most species-rich groups of bees in North America. Originally described by Mitchell in 1960, this species was subsequently documented as a new record for Canada. Like other members of Dialictus, it belongs to a group noted for diverse social systems ranging from solitary to eusocial behavior. The species is part of the larger genus Lasioglossum, which comprises over 1,700 species globally and represents a significant component of native bee communities.