Cobalt Milkweed Beetle

please verify
August 10, 2009
I found these beetles on milkweed and have tentatively identified them as Blue Milkweed Beetles. Is that your assessment too? And is that the beetles’ genitalia that I am seeing in the second photograph?
Tom
near Mt Shasta, Ca

Cobalt Milkweed Beetles Mating
Cobalt Milkweed Beetles Mating

Dear Tom,
BugGuide refers to Chrysochus cobaltinus as the Cobalt Milkweed Beetle.  Your photo of a couple in the process of mating is a nice addition to our Bug Love pages.  We will try to get an answer on the genitalia question for you.

Cobalt Milkweed Beetle
Cobalt Milkweed Beetle

Leave a Comment