Ottawa (Dunrobin), ON Canada

22 July 2003  (specimen captured on 17 July 2003)

Dypterygia rozmani has quite a striking appearance, with its predominantly very dark brown to black forewing with whitish markings around the anal angle and along the inner margin.  Some have likened the mark around the anal angle to the silhouette of a bird on the wing, giving rise to the common name of American Bird's-Wing Moth.  When the moth has its wings closed at rest, however, the outlines remind me more of a person's head and shoulders.  Antemedial and postmedial lines are black, as are the outlines of the orbicular and reniform spots.  The costal edge shows three or four small tan marks outside the pm line.  The fringe is dark, with tan stripes at intervals.

The larvae of Dypterygia rozmani have been reported to feed on docks and smartweeds (Rockburne and Lafontaine, 1976).  Handfield (1999) indicates an adult flight season from early June to late August for my general area.

I have photographed this species only once, in 2003 on 17(22) July.