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Photo#143811
Zacosmia maculata - male

Zacosmia maculata - Male
Off Frazier Mountain Road (8N04), ~6800ft, Los Padres National Forest, Ventura County, California, USA
September 6, 2007
On Erigeron foliosus var. foliosus.

Images of this individual: tag all
Zacosmia maculata - male Zacosmia maculata - male

Zacosmia maculata (Cresson)
Apinae:Melectini

this is a cleptoparasite of Anthophora (Heliophila), likely including the one you posted photos of earlier today

another excellent photo of a great bee!

 
Thanks, John,
this is fascinating! When I first looked at this, I thought 'strange similarity to Xeromelecta ', but preliminarily labeled the folder 'Xeromelecta or Nomadinae'. The Anthophora (Heliophila) was from the same place, perhaps within 5-6 meters.
I found an illustration of the male antenna in Michener (1). Looking at my photos, this bee looks like a male (fusiform flagellum).

 
yes it is a male
based on the extraordinary antennae (less modified in the female)

 
Thanks , John,
for confirming gender.

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