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

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

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Subfamily Halictinae

Shiny Ant or Fly - Augochlora pura Sweat Bees (Halictidae) » Halictinae » Halictini » Lasioglossum - Lasioglossum Tiny ant sized bee - Lasioglossum semicaeruleum Tribe Halictini - ? - Lasioglossum - male bee IMG_0149 - Lasioglossum imitatum - female tiny bee on perkysue (Tetraneuris argentea) - Halictus tripartitus - female Halictus Sweat Bee - Halictus ligatus - male Anthophila (Apoidea) - Bees - 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 Bees)
Subfamily Halictinae
~400 spp. in 10 genera of 2 tribes in our area, ~3,500 spp. in 55 genera of 3 tribes worldwide(1)
one tribe is cosmopolitan, another is primarily neotropical, and the third is restricted to the Old World (mostly warmer parts); S. American fauna shows the most diversity at generic level(1)
Most species nest in burrows in banks or in the ground (Augochlora uses partially rotten logs). Some are primitively eusocial; in such cases usually a female guards the entrance to the burrow by plugging it with her head. Generally the main burrow is vertical; it sends horizontal branches, each branch ending in a solitary cell. (2)
Communal nest of Agapostemon virescens
Subcortical nest of Augochlora pura