SeasonalityAdults fly from early June to late August.
IdentificationAdult antennae are brown and the vertex of the head dark brown. Spurs are pale brown. Forewings are deep chocolate-brown to a pale yellowish brown, lightly irrorate and the costal are is clear and pale yellow. In males, the cercus and segment 10 processes are equal in length. Each process is tapered and rounded at the tips. The ventral base of the clasper is smoothly tapered to an acuminate, black, dorsal process (Nimmo, 1971).