Kevin Krebs:
Genus Halictus (Furrow Bees)
Kevin Krebs:
Genus Astata
Kevin Krebs:
Genus Astata
Kevin Krebs:
Polistes dominula vs Apis mellifera
Kevin Krebs:
Genus Megachile
Kevin Krebs:
Chalybion californicum (Common Blue Mud-dauber Wasp)