Species Adelphagrotis indeterminata - Hodges#10991

10991

one of 3 species in this genus in North America listed at All-Leps

wingspan presumably similar to A. stellaris (in the 30-40 mm range)

Adult: forewing medium to dark gray, slightly paler in lower medial area; reniform spot whitish to pale yellow with dark shading at top and bottom; black basal dash almost reaches AM line; black strip runs from AM line through orbicular and reniform spots to PM line; AM and PM lines black, wavy, indistinct; subterminal line a series of pale faint dots; hindwing dirty white basally, shading to gray distally, with darker veins and thin discal lunule; fringe pale yellowish with some dark spots at tips of veins; thoracic collar black; top of thorax brownish-gray laterally, with slightly paler middorsal strip

British Columbia to California

forests in the far west

adults fly mainly from August to October, with a few records from May to July

larvae feed on leaves of flowering trees and shrubs

Abagrotis glenni forewing has a long basal dash extending to the PM line, and a reniform dash extending to the subterminal line; Abagrotis mirabilis forewing is completely dark except for an unmarked pale reniform spot; Adelphagrotis stellaris forewing lacks a basal dash, and its reniform spot is dark orange mixed with gray

dark forms of Euxoa tessellata are similar, but reniform spot is darker, showing less contrast against ground color, basal dash is less distinct, and thoracic collar is not black (see image)

Xestia xanthographa forewing lacks a basal dash, and top of thorax is uniformly dark (see image)

Moth Photographers Group (MPG)

Pacific Northwest Moths

Barcode of Life (BOLD)

description of adult plus foodplants (Jeff Miller, Macromoths of Northwest Forests and Woodlands, USGS)

presence in California giving specimen locations and dates (U. of California at Berkeley)

presence in Oregon; list 25 specimens in collection, including locally collected specimens (Oregon State U.)

distribution in Canada British Columbia only (U. of Alberta, using CBIF data)