Found at a lighted wall at night, captured and posed. Body length measured at 8 mm (corrected).

Brimley, Insects of North Carolina, p. 193, (1) lists only A. robinsoni for the Piedmont of North Carolina, whis is where Durham is. I can find no illustrations of that species, and few references to it. So this is possibly either A. aenea or A. robinsoni, based on published ranges. (See update below.)
Image updated 6/3/21.

(See comments below. Image updated from another in the series 1/1/23.)
Note 1/1/2023. ID updated. Likely Arthromacra robinsoni. (New species for the Guide, Woo-hoo!) See guide page and discussion at:
https://www.inaturalist.org/observations/81509173 as well as key and descriptions in Ciegler (2).
ID updated 1/2/23 after careful reading of keys and descriptions!
Also, it is a male, based on long apical antennal segment shown in Leng's original description.