Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

BugGuide is a National Moth Week Partner. How to add your National Moth Week 2021 photos. July 17-25.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week 2020 photos of insects and people.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Previous events


Genus Lasioglossum

Bee - Lasioglossum Lasioglossum - female Lasioglossum ? - Lasioglossum 120 - Lasioglossum Pterygota sp. - Portland, OR - Lasioglossum Small bee? - Lasioglossum Bee - Lasioglossum - female Bee - Lasioglossum
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon (Aculeata - Ants, Bees and Stinging Wasps)
No Taxon (Anthophila (Apoidea) - Bees)
Family Halictidae (Sweat, Furrow, Nomiine, and Shortface Bees)
Subfamily Halictinae (Sweat and Furrow Bees)
Tribe Halictini
Genus Lasioglossum
Explanation of Names
Lasioglossum Curtis 1833
~290 spp. in 5 subgenera in our area, ~1760 spp. in 24 subgenera worldwide(1)
Subgenus not yet in the guide: Hemihalictus: (monotypic, e. US to ND-NM)(1)
2-8 mm
Slender, tiny to medium bees, dusky black, dull green or blue, with bands of hair on their abdomen. Some have a red abdomen (Michener 1994). They differ from Halictus by the location of hair bands on the segments of their abdomen. Lasioglossum has bands of hair on the innermost portion of each segment, whereas Halictus has bands of hair on the outermost portion of each segment (apical).

Identifying Lasioglossum to species is difficult because they look similar. Often the differences between species is the density of punctuations on the thorax and the surface texture between the punctuations. (2)
worldwide (Discover Life Map)(1)
They forage on a wide variety of flowers for pollen and nectar, they are generalists.
Life Cycle
Male and female
Female in nest
Probably only fertilized females overwinter.
Some are cleptoparasites, some are nocturnal and some are oligolectic. They range from solitary to communal, semi-social and primitively eusocial.
They are very common at flowers, but usually not noticed because of their small size.
Print References
A key to the eastern species of subgenus dialictus can be found in Gibbs, J. 2011. Revision of the metallic Lasioglossum (Dialictus) of eastern North America (Hymenoptera: Halictidae: Halictini.) Zootaxa.(3)
Also in the outdated but still useful Mitchell (1960)