Nilio species, Tenebrionidae
I thought this was a chrysomelid leaf beetle for the first few minutes of the photo shoot. It’s got such a nice round leaf-beetle shape. Not to mention the bright leaf beetle colors.
But no. The arrangement of the tarsi (5-5-4) and the short, 11-segmented antennae give away its true tenebrionid nature. I’d never seen anything like it.
Tenebrionidae are the darkling beetles, most species have rather drab coloration and a more elongate body form. My labmate Kojun, who helpfully identifies the tenebrionids over at bugguide.net, recognized this one straight away as a species of Nilio.
Inside a white box, indirect strobe