Ottawa (Dunrobin), ON Canada

20 July 2001   11:38PM EST  (top left)
25 July 2001   11:12PM EST  (top right)
21 July 2001   12:25AM EST  (bottom left)
21 July 2001   11:43PM EST  (bottom right)

The images at top left and bottom left are of the same individual.

Oligocentria lignicolor is one of two species of Oligocentria that may occur in my general area, both of which are illustrated on this web site.

Covell (1984) calls Oligocentria lignicolor the White-Streaked Prominent, for obvious reasons.  Overall, the forewing is light gray, streaked with black and white, and with a fairly noticeable white streak at the anal angle.  The reniform spot is marked by a black dot; the tuft noted by Covell is not noticeable in the photos above.  A small black tuft midway along the inner margin of the forewing, however, is quite evident in the top left and bottom right photos.  The antemedial and postmedial lines are not defined.  The hindwing is white in the male, gray in the female, with gray markings at the anal angle.

At rest, Oligocentria lignicolor holds its wings in a "tent" position, but may also take a more flattened position as in the top photo.

The larvae of Oligocentria lignicolor feed on birch, oak and several other deciduous trees and shrubs.  According to Handfield (1999), the flight season in my general area is from early July to early August.

I have photographed this species in 2001 on 20, 21 and 25 July; in 2002, on 20 and 29 July, and on 2 August.