[Full-size image here]

Found near lights. Perhaps Margarethe will know it?

Looks like a tenebrionid to me...searching the guide I thought some of the images under Embaphion looked promising. I found Frank Blaisdell's 1909 key to Embaphion and the best candidate there seemed to me to be E. contusum. But the description seemed imperfect, and maybe I'm way off on genus?!

Unfortunately this is the only photo I got...and it isn't a (vertically aligned) dorsal image. (Though, as a silver-lining, the oblique view helps bring out the "flange-like" recurved margins of the pronotum, and to a lesser extant the elytra.)