Pachybrachys sp.

Looks exactly like the one Pachybrachys circumcinctus specimen at the Essig Museum, but that only specimen is from Yosemite (several 100 miles away). Also resembles the 14 Pachybrachys bivittatus specimens, but those had very varied patterns on the elytra and none were exactly like mine (one was very close). Range would include my area.

There is a photo of Pachybrachis circumcinctus in the Audubon Guide (image 155) with a pattern almost the same as mine but not as perfect a match as the P. circumcinctus at Essig. The Audubon Guide says the range is from California to Oregon but without further information I'm not sure... (Note difference in spelling - Pachybrachis vs Pachybrachys - which is correct? Essig uses Pachybrachys. Cedar Creek uses Pachybrachis. What does American Beetles use?)