California Prionus Beetle (Prionus californicus) on Jul 30, 2022
Submitter has sample
Description of specimen
Derobrachus geminatus is what came up from a Google photo search. I've never seen this type of beetle before.
This is our native California Prionus. Their grubs live in decaying conifer stumps. They are not tree killers. Thanks for being on the lookout!
Tom Valente
Aug. 1, 2022, 3:33 a.m.