Sorry to be picky but chinch bugs are not beetles but "true bugs" (Hemiptera) and their appearance varies according to life stage, the nymphs being quite different in appearance, including colour, from the adults. Here's a pic of three stages of the southern chinch bug (Blissus insularis), the yellowish-red nymph (the one that has the sort of white stripe), a short-winged adult and a long-winged adult (from Texas A & M Agrilife Extension):
http://austin.agrilife.org/fil...
I find I need magnification to see the markings on them for ID, they're smaller than one might think from photos.
