Ottawa (Dunrobin), ON Canada

30 May 2003   10:10PM EST  (left)
15 June 2003   9:37PM EST  (right)

My initial identification of this species was based on Covell (1984) and subsequently checked against specimens in the Canadian National Collection in Ottawa, thanks to the kindness of Dr. J. Donald Lafontaine in arranging access to this resource.

Amorbia humerosana has a pale gray forewing, somewhat mottled, and usually showing a darker gray, poorly defined, triangular area extending inward from the costa.  The area along to the inner margin is mostly shaded with brown, although in some specimens this shading is quite faded as in the specimen at right above.  The entire forewing is flecked with black.  According to Covell (1984), the wingspan ranges from 2.1 to 3 cm, making this one of our larger tortricid species.

The larvae of Amorbia humerosana feed on a wide variety of plants, including alder, apple, huckleberry, pine, poison ivy, and sumac (Covell, 1984). 

I have photographed this species in 2001, on 21 and 23 May, and on 4 and 12 June; in 2002, on 31 May; in 2003, on 30 May, and on 15 and 27 June.