Hi there! Can't seem to ID this bug; iNaturalist is sure it's a boxelder, but I'm not too certain that it is based on its underside (colored black) and its patterns not matching up with boxelders I've seen in the past. Lower Santa Clara county area, California. Pic taken today.
Bug ID - California, USA:
Hello, yes, this is a late instar nymph of the Western Boxelder Bug (Boisea rubrolineata), family Rhopalidae.
Species Boisea rubrolineata - Western Boxelder Bug - BugGuide.Net











