Mouth of Cottonwood Canyon, at southeast base of the White Mountains, Inyo County, California, USA
June 16, 2009
I keyed this in Hull(1)
and it went unambiguously to the genus Geron
. I have no idea which species though, and comments on other BugGuide Geron
posts indicate that determination of species in this genus typically requires examination of genitalia...oh well :-) At any rate, they're elegant little bombyliids!
This one was resting here between foraging forays on the desert shrub Psorothamnus polydenius
, in the pea family (Fabaceae). I presume it's male from the holoptic eyes (best seen it subsequent images in this series).