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Andrenid bee - Andrena prunorum - male

Andrenid bee - Andrena prunorum - Male
Rancho Santa Ana Botanic Gardens, Claremont, Los Angeles County, California, USA
March 29, 2006
Size: 10-12mm
Feeding in Ceanothus cuneatus var. fascicularis. Brightly colored, very fast insect; obvious in a shrub otherwise dominated by honey bees.

Moved from Mining Bees.

Andrena (Plastandrena) prunorum Cockerell, 1896

Andrenid bee (Andrenidae) - male
Very similar to a female submitted from New Mexico two days ago, except that abdominal cuticle is less extensively red (limited to a part of 2nd urotergite). Sexual dimorphism, as well as geographical variation, could explain this difference.

How about a cuckoo bee like Doeringiella (Triepeolus)?

Thanks, Richard! I haven't found the image from New Mexico yet. Perhaps I'll see this insect again this weekend and take some better shots.

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