Clypeal notch

I may eventually be good at diagnosis of at least the easier genera. In the meantime, I can appear wherever a species announces itself with a single, unique trait. E.g., Halictus ligatus and Megachile pugnata are unmistakeable for conspicuous genal processes. Another case: In DiscoverLife there are 96 possibles for Oregon Osmia. Osmia inurbana is the only answer for Middle of rim with distinct, narrow, acutely angled, triangular notch in Oregon.

Posted on September 13, 2022 04:16 PM by cappaert