|scientific name Crambus trichusalis |
Late July and August.
A medium sized Crambus (24-27 mm wingspan). Forewing yellowish gray with a thin stripe along the anal margin and one below the costa; discal stripe narrow, not widening towards the apex, with a slight tooth below at the inner third; lacking a white patch between the discal stripe and the subterminal line; terminal line with four or five black dots below. Regarded as a synonym of C. dumetellus by Fernald (1896) but shown not to be so by Kearfott (1908). Crambus dumetellus is now regarded as a synonym of C. whitmerellus. Crambus trichusalis is easily separated from whitmerellus by having the narrow discal stripe which does not widen towards the end.
Seldom encountered, but probably not of concern. It should be on a "watch" list.
Unknown, probably grasses.
A North American species known from southern Alberta and Saskatchewan (Kearfott 1908) and in the Rocky Mountains of Alberta (Bowman 1951). In addition, a specimen has been seen from Innisfail, Alberta.
Comments are published according to our submission guidelines. The EH Strickland Entomological Museum does not necessarily endorse the views expressed.