Several adults were collected using sheets with blacklight/merc vapor combo's. We had best success when we took long bamboo poles and thrashed the surrounding vegetation. Disturbed adults readily come to lights.

In Alabama, these insects were most abundant in and around oaks (host is apparently unknown). I do recall a few nymphs that may have been immatures of this insect hunkered down on the branch of a large water oak, Quercus nigra. To the best of my memory, the nymphs were all dorso-ventrally compressed, bark-like/lichen-like in coloration, with a tendency to scurry around to the opposite side of the branch before leaping. I remember thinking they were stink bugs until one jumped and I took a 2nd look. (Other than being wingless, the nymphs were very similar in appearance to the adult insect above.)

Pictured above:
best specimen I have available with wings open
Calyptoproctus marmoratus‏