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Subfamily Halictinae - Sweat and Furrow Bees

Halictidae (Sweat Bees) - Lasioglossum bruneri - female bee - Augochloropsis metallica - female Tiny Bee on Strawberry - Sphecodes - female Small Bee under bark - Lasioglossum coeruleum Bee on Coriopsis - Halictus poeyi small bee - Augochlora pura Green bee - Agapostemon - male 170 - Lasioglossum ovaliceps
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 (Anthophila (Apoidea) - Bees)
Family Halictidae (Sweat, Furrow, Nomiine, and Shortface Bees)
Subfamily Halictinae (Sweat and Furrow Bees)
Numbers
~400 spp. in 10 genera of 2 tribes in our area, ~3,500 spp. in 55 genera of 3 tribes worldwide(1)
Range
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)
Remarks
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