Size
wingspan 30-40 mm; female larger than male
Identification
With clear photos of the forewings, the following descriptions can be applied.
Adult: The dark AM band touches the inner margin of the forewing; [whereas in Caenurgina erechtea, the dark AM band does NOT touch the inner margin].
Scales brushed from terminal end of abdomen in males of C. erechtea and C. crassiuscula
Range
coast to coast in United States and adjacent parts of Canada; in the west to Northwest Territories, Yukon, and Alaska
Habitat
fields, roadsides, waste places; adults are active day and night, and are attracted to light
Season
adults fly from March to November
Food
larvae feed on clover, grasses, and lupines
Remarks
Due to the similarity in spelling, the genus
Caenurgina is sometimes confused with
Caenurgia, a genus in the same subfamily and tribe as
Caenurgina.
See Also
In
Forage Looper (
Caenurgina erechtea) the dark AM band on the forewing does not touch the inner margin.