Found at a lighted window, captured, and measured. This one has thrown me for a loop, because I swear I've seen it before, but I can't find it in my files. It looks like a member of the Tenebrionidae, or allied family, but I'm not finding it. (See comments--yippee!!!, this is new for the guide--the first new species I have added in quite some time. It is a tribute to BugGuide's success that it is getting rather difficult to find new species for well-known groups.)

Since this is something of a rarity, I'll give geographic coordinates for the record:
Latitude: 35.885712
Longitude: -78.909988
I did not keep the specimen, unfortunately. Details on habitat:
This is swampy secondary forest (probably abandoned from farming about 50 years ago) in poor, acidic soil--waterlogged red clay characteristic of the NC Piedmont Triassic Basin (see Geology of North Carolina). Trees include water oak (Quercus nigra), other oaks, a few Hickories, Sweetgum, and Loblolly Pine. A few native shrubs, such as Viburnum rafinesquianum, are in the understory, as well as plenty of invasives such as Japanese Honeysuckle, English Ivy, and Ligustrum. There are plenty of rotting logs in a nearby woodlot.