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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Cucujiformia » Longhorn and Leaf Beetles (Chrysomeloidea) » Leaf Beetles (Chrysomelidae) » Tortoise Beetles and the Hispines (Cassidinae) » Chalepini » Microrhopala » Microrhopala rubrolineata
Photo#743886
beetle from Baccharis - Microrhopala rubrolineata
Copyright © 2013 Joyce Gross

beetle from Baccharis - Microrhopala rubrolineata
Covelo Rd, Hwy 162, Mendocino County, California, USA
May 26, 2012
Looks like Microrhopala to me, but I'm confused by the red markings which don't exactly match anything identified to species in the guide.

The beetle was on Baccharis pilularis (coyote brush).
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Contributed by Joyce Gross on 9 February, 2013 - 6:48pm
Last updated 20 February, 2013 - 2:21am

rubrolineata
I looked at the Microrhopala specimens at the UCB Essig museum. Many specimens identified by C.L. Staines as M. rubrolineata look exactly like this one, so I've moved this image to M. rubrolineata.

C.L. Staines has three subspecies for M. rubrolineata: signaticollis, rubrolineata, and militaris. Most of the militaris specimens have the same red pattern as this beetle, but some of the signaticollis do also. I wasn't able to spend enough time figuring out how the two subspecies differ (and am not sure I would have been able to figure it out). Not sure what the status is of these subspecies, but, in addition to the older specimens with subspecies names, there were some just-recently-identified by C.L. Staines Microrhopala specimens returned to the collection with these subspecies names.

At any rate, I'm happy to know what the species is.
… Joyce Gross, 20 February, 2013 - 2:40am login or register to post comments

 
beetle
Thanks for your ID.
… barrymantell, 16 November, 2021 - 9:52pm login or register to post comments

Moved
Moved from Microrhopala.
… Joyce Gross, 20 February, 2013 - 2:21am login or register to post comments

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