Synonyms and other taxonomic changes
Setagrotis pallidicollis (Grote, 1880)
Agrotis pallidicollis Grote, 1880; replacement name for Agrotis cinereicollis Grote, 1876
Agrotis cinereicollis Grote, 1876; junior homonym of Argotis atra var. cinereicollis Guenee 1852
Agrotis congrua Smith, 1890
Agrotis planifrons Smith, 1890
The forewings are grey with a reddish-brown wash in the lower portion of the median area and in the subterminal area. The reddish cast is more pronounced in the species as one goes south into California. The antennae of males are moderately biserrate and bifasciculate while the antennae of females are filiform.(1)
Alberta and British Columbia, Montana, Idaho, Washington, Oregon, and California.
Adults have been collected from mid-July to early September.
Larvae feed on deciduous shrubs, such as serviceberry (Amelanchier alnifolia) and alder (Alnus.
Grote, A.R. 1876. On Noctuidae from the Pacific Coast of North America. Bulletin of the Buffalo Society of Natural Sciences. 3: 79
Grote, A.R. 1881. Preliminary list of the North American species of Agrotis, with descriptions. Bulletin of the United States Geological and Geographical Survey of the Territories. 6(1): 154
Smith, 1890. Description of some new species of Agrotis auct. Transactions of the American Entomological Society. 17: 42-43