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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » Aculeata - Ants, Bees and Stinging Wasps » Apoidea (clade Anthophila) - Bees » Cuckoo, Carpenter, Digger, Bumble, and Honey Bees (Apidae) » Honey, Bumble, Longhorn, Orchid, and Digger Bees (Apinae) » Chimney or Turret Bees (Emphorini) » Diadasia » Subgenus Coquillettapis (Diadasia Subgenus Coquillettapis) » Diadasia bituberculata
Photo#270197
Diadasia ? - Diadasia bituberculata - female
Copyright © 2009 Hartmut Wisch

Diadasia ? - Diadasia bituberculata - Female
Santa Barbara Botanic Garden, Santa Barbara County, California, USA
April 27, 2009
Cloudy, low 60's (ºF), few bees active - save for the ubiquitous honey bees.
This bee was found resting in a poppy (Eschscholzia californica.

Wing venation and general body shape make me think this is a Diadasia. Correct or not?
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Contributed by Hartmut Wisch on 27 April, 2009 - 11:08pm
Last updated 11 May, 2011 - 12:15pm

Diadasia bituberculata
female
… John S. Ascher, 28 April, 2009 - 6:21pm login or register to post comments

 
Thanks, John!
This restores a few drops of confidence in my ability to distinguish a few bees. Actually, I had hoped to see this sp. in the many Calystegia that have cropped up after the "Tea fire" of last year. Cool and overcast yesterday. Still, I had expected to see some males "sleeping" in the flowers - nada.
… Hartmut Wisch, 28 April, 2009 - 8:49pm login or register to post comments

I'd say no.
I think this is a species of Andrena, because of the "facial foveae" that I think I can see (kind of an excavated channel along the inner eye margin). Do wait for Dr. Ascher's opinion.
… Eric R. Eaton, 28 April, 2009 - 10:41am login or register to post comments

 
I did see
what may be facial fovea, and was thinking about Andrena, but wasn't sure. Also thought about what looks more like a flatter, rather than convex vertex (though that's better seen from the front), which (if so) would also steer toward something non-Diadasia.
… Hartmut Wisch, 28 April, 2009 - 11:08am login or register to post comments

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