A native orchard bee on grape holly.

After finding a new introduced species, it's heartening to see some natives, like this Osmia ribifloris, in the urban center. There are many species of Osmia, including the cultivated blue orchard bee, O. lignaria; but I'm pretty sure this is O. ribifloris, given it's very dark hairs, early spring emergence, and overall extremely metallic blue appearance. Gorgeous!