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Subfamily Panurginae

Mining Bee - Perdita - male - female Bee with gray thorax on encelia - Calliopsis rhodophila Calliopsis anomoptera - male small colorado native bee - Pseudopanurgus ID for a tiny bee? - Perdita Halictidae  -? - Protandrena - male yellow bee - Perdita - female unknown bee  - Perdita
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 Andrenidae (Mining Bees)
Subfamily Panurginae
Numbers
734 spp. in 6 genera of 3 tribes in our area, ~1,400 spp. in 35 genera of 6 tribes worldwide (almost half of the world's spp. are in Perdita)(1)
Identification
usually smaller, less hairy than Andreninae, and sometimes have yellow- or cream-coloured markings on all tagmata.
Apex of marginal cell truncate, and usuallly only two submarginal cells.
Range
worldwide, but >2/3 spp. in NA and just ~160 in the Old World, where they are restricted to w. Palaearctic & Africa (+2 spp. in e. Asia); the 3 tribes absent in NA are tiny (4 spp. combined) are all restricted to Brazil or Chile(1)
Season
most are univoltine and have a short flight season
Food
most are specialists, collecting pollen from a single plant taxon