Length: 9.0 - 11.5 mm
In Ocyptamus costatus the wings' leading edges are a dark smokey color, while the rest is hyaline. The face bears a median dark vertical line. The abdomen is sharply constricted behind the thorax; it bears regularly spaced whitish spots along the sides.
The larvae feed on scale insects.
This species ranges from Ontario to New Hampshire, south to Louisiana and Florida (Stone et al., 1965).
Photo location: Arden, West Virginia.
American Insects site