Pepsis mildei and Pepsis thisbe (and possibly P. pallidolimbata, but hard to tell due to wing wear) and the most abundant visitors, with P. mildei (with the orange antennae) being the most numerous.
I saw no Pepsis mildei over the summer at the milkweed. Those Pepsis seemed to be P. thisbe primarily.
|The luxuriously flowering Baccharus. This is only a small fraction of it.|
|Pepsis mildei male. He has 11 flagellomeres (long segments) on his antennae (females have 10).|
|Orange antennae and dark margins on the wings identify this species (at least in this region).|
|I believe that this is a Pepsis thisbe male, due to the amount of hyaline (clear) edging on the wing tips.|
|A large bumblebee (likely a queen). Looks like Bombus occidentalis, but I am not certain yet.|
|This bee slowly moved from flower to flower...|