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

Calendar
Upcoming Events

See Moth submissions from National Moth Week 2023

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

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

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

Photos of 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


Previous events


TaxonomyBrowse
Info
ImagesLinksBooksData

Subgenus Dialictus, Metallic-Sweat Bees

Mystery bee - Lasioglossum anomalum - male Lasioglossum (Dialictus) sp - Lasioglossum actinosum - female Lasioglossum (Dialictus) ? - Lasioglossum actinosum - female Small green bee - Lasioglossum Possible to ID beyond Genus Lasioglossum? Thanks ! - Lasioglossum Possible Golden-Alexanders Andrena? - Lasioglossum Lasioglossum oblongum - female Bee - Lasioglossum - male
Classification
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 (Apoidea (clade Anthophila) - Bees)
Family Halictidae (Sweat, Furrow, Nomiine, and Short-faced Bees)
Subfamily Halictinae (Sweat and Furrow Bees)
Tribe Halictini
Genus Lasioglossum
No Taxon Subgenus Dialictus, Metallic-Sweat Bees
Numbers
~200 spp. in our area, ~600 spp. worldwide(1)
Identification
A key to the eastern species of subgenus dialictus can be found in Gibbs(2011) Full Text Here
Range
mostly holarctic and neotropical (a few spp. in SE Asia); in our area, all but 4 spp. in the US, 91 spp. in Canada(1)
Remarks
Extremely difficult to ID to species, even under the microscope. They are so morphologically monotonous that breaking them into species groups is only an option for some. Many species can only be IDed by the relative density of punctures on the surface of the bee.
However: "The limiting factor is resolution of the images. If we could clearly see antennal proportions and scutal sculpturing many species identifications would become possible." (Comment by John Ascher).
Male and female
Print References
Gibbs, J. 2010. Revision of the metallic species of Lasioglossum (Dialictus)in Canada (Hymenoptera, Halictidae, Halictini). Zootaxa; 2591, 175-178.(2)
Gibbs, J. 2011. Revision of the metallic Lasioglossum (Dialictus) of eastern North America (Hymenoptera: Halictidae: Halictini.) Zootaxa.(3)
Gardner, J., & Gibbs, J. (2020). The ‘red-tailed’ Lasioglossum (Dialictus) (Hymenoptera: Halictidae) of the western Nearctic. European Journal of Taxonomy, 725(1), 1-242. (Full Text Here)