Ottawa (Dunrobin), ON Canada

4 July 2003   10:10PM EST  (left and right)
Both photos are of the same specimen.

My identification of this species is based on comparison of my photos with specimens in the Canadian National Collection in Ottawa, to which access was kindly arranged by Dr. J. Donald Lafontaine of Agriculture Canada.  Lacking other resources for identification, my identification is therefore tentative pending expert confirmation based on the collected specimen shown above.

Argyrotaenia quadrifasciana is one of 9 species of Argyrotaenia known to occur in the Ottawa area.  The wing is a yellowish tan, entirely covered in an alligator-pattern of medium rust brown.  Two darker rust-brown lines cross the wing diagonally from the costa, the outermost of which begins as a "Y" at the costa and terminates at the anal angle.  There are also darker lines near and at the outer margin.  While I have not measured the wing length, I would estimate it about 10 mm.

The results of an Internet search indicate that the larva of Argyrotaenia quadrifasciana is a leaf roller on apple, cherry, hawthorn and shadbush (serviceberry, Amelanchier spp.), commonly called the Lesser All-Green Leaf Roller.

I have photographed this species in 2001 on 24 June; in 2002 on 1 July; in 2003 on 4 July.