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Subgenus Diandrena, Two-celled Andrena

Andrena sp?  Stuck to flower - pathogenic fungus? - Andrena Bee - Andrena - male Bee - Andrena - male Andrena maybe - Andrena olivacea Coastal bee - Andrena Andrena ablegata TYPE - Andrena ablegata - female Andrena sperryi TYPE - Andrena sperryi - female Diandrena? - Andrena
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 Andreninae (Mining Bees)
Genus Andrena
No Taxon Subgenus Diandrena, Two-celled Andrena
Explanation of Names
Author: Cockerell 1903.
25 spp., all in our area(1)
Based on the key to the subgenera of North and Central America (females) in(2): two submarginal cells; tibial scopal hairs largely simple; integument often metallic blue or blue-green; propodeum (outside of the triangle) roughened by punctures.
all the spp. occur in the US, with one (A. nothocalaidis) ranging into Canada (BC) and 6 into Mexico(1)
Print References
Thorp, R. W. (1969). Systematics and ecology of bees of the subgenus Diandrena (Hymenoptera: Andrenidae). University of California Publications in Entomology 52: 1-146.