Borrego Springs, San Diego County, California, USA March 30, 1996 Size: very small
This small dark bee was on Brown-eyed Eveningprimrose (Camissonia [=Oenothera] claviformis, Oenagraceae) at Hoberg Canyon. The wing venation is almost impossible to see, but it seems that possibly I can make out the short marginal cell of Perdita.