species 2,020 observations
Paler Graphic
Drasteria pallescens
Field notes
Drasteria pallescens, the cowhead arches, is a moth of the family Erebidae. The species was first described by Augustus Radcliffe Grote and Coleman Townsend Robinson in 1866. It is found in North America from Alberta and Saskatchewan south to Texas and Baja California.
The wingspan is about 35 mm. Adults are on wing in June in the north. Probably earlier southward.
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Greener is more native, amber more introduced; paler is less certain. How this was decided