''Cordylospasta opaca'' is a

blister beetle Blister beetles are beetles of the family Meloidae, so called for their defensive secretion of a blistering agent, cantharidin. About 7,500 species are known worldwide. Many are conspicuous and some are aposematically colored, announcing their ...

that occurs in arid regions central and southern

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

. Males are fully winged and reach a length of 12 mm, while females are flightless with reduced elytra and reach a length of 19 mm. ''

Cordylospasta fulleri ''Cordylospasta fulleri'' is a species of blister beetle Blister beetles are beetles of the family Meloidae, so called for their defensive secretion of a blistering agent, cantharidin. About 7,500 species are known worldwide. Many are conspic ...

'' is almost identical, but occurs in the

Great Basin The Great Basin is the largest area of contiguous endorheic basin, endorheic watersheds, those with no outlets, in North America. It spans nearly all of Nevada, much of Utah, and portions of California, Idaho, Oregon, Wyoming, and Baja California ...

and has 8-10 antennal segments, while ''Cordylospasta opaca'' should have 11 antennal segments.

References

{{Taxonbar, from=Q2128189 Meloidae Beetles of North America