Synonyms and other taxonomic changes
Euxoa obeliscoides (Guenée, 1852)
Agrotis obeliscoides Guenée, 1852
Phylogenetic sequence #
Forewing length 14-18 mm.
forewing with dirty white strip along costa from base to reniform spot; an adjacent black strip provides a contrasting background for the large pale yellowish reniform and orbicular spots; claviform spot cone-shaped, dark gray; medium gray triangular area along inner margin tapers from base to near anal angle; subterminal area pale gray (or reddish-brown in female [?]); terminal band medium gray with jagged inner margin and slightly paler patch at apex; top of thorax with large pale central patch surrounded by darker area
hindwing white with diffuse gray terminal band (or solid brownish-gray, slightly darker distally in female [?])
British Columbia to Quebec and Maine, south in the east to New England and Illinois, south in the west to California, Arizona, New Mexico, Texas
sandy pine forest, dry aspen parkland, riparian cottonwood stands
adults fly from July to September
larval food plant(s) unknown
one generation per year; overwinters as an egg
extremely similar to - and indistinguishable from photos of - E. oberfoelii, which occurs in southern Saskatchewan and North Dakota
superficially resembles Flame-shouldered Dart (Ochropleura implecta) but that species has small dark reniform and orbicular spots, and a more uniformly dark brown forewing
Guenée, 1852. Noctuidae 1: 293, 477.