This beetle was on Yerba Santa,
Eriodyction trichocalyx, in Coastal Sage Scrub at the Claremont Colleges'
Robert J. Bernard Biological Field Station. Photographed about 9:00 a.m. We had previously identified this beetle as
Trirhabda diducta, but I've noticed that markings on the elytra are not as distinct as those shown on the
T. diducta species page. I do not, however, have a sense of the normal range of color variation within the species. If someone could confirm that is
T. diducta or let us know what it is if it's something else, we would very much appreciate it! We are in the process of documenting invertebrates at the Field Station (
http://www.bfs.claremont.edu/biota/inverts/), and we'd like our list to be as accurate as possible.