Ottawa (Dunrobin), ON Canada

15 June 2005   9:54PM EST  (left)
5 June 2005   12:00AM EST  (right)

My initial identification of Evergestis unimacula was based on Covell (1984), and subsequently checked against Munroe, E., The Moths of North America North of Mexico, Fascicle 13.1, Pyraloidea Pyralidae (Part) (London: E.W. Classey, 1972-1974) and specimens in the Canadian National Collection in Ottawa.

Evergestis unimacula has broad rounded wings of a dull, dark gray-brown color.  Beyond the midpoint of the costa, there is a large whitish yellow spot extending downward.  There is usually also a much smaller round spot just beyond the middle of the wing.  The hindwing is dark gray-brown as well, with a much more diffuse pale costal spot.  The hindwing fringe is pale and grayish, whereas the forewing fringe is dark brown.  Covell (1984) indicates a wingspan from 1.8 to 2.2 cm for this species.

According to Munroe (1973), little is known about the life cycle or host plant(s) for Evergestis unimacula..

My records to date for Evergestis unimacula (each date representing "the night of") are in the table below: