I believe this may be a diapriid wasp (fam. Diapriidae, subfam. Diapriinae), whose larvae are supposedly parasites of fungus gnats and other dipterans. Diapriid wasps are characterized by a protuberance in the middle of the face from which the antennae extend, and I think this is visible in the image. The small size and lack of wing venation suggest that this specimen (assuming it is a diapriid) belongs to subfam. Diapriinae. Compare with images from Cedar Creek. Also refer to Borror & White, page 336-337 (1). This specimen was found on an azalea leaf and taken indoors to photograph.