Species Details

Euxoa oblongistigma

University of Alberta E.H. Strickland Entomological Museum Read more about this collection »

SeasonalityAdults have been collected in Alberta from late July through August. IdentificationEuxoa oblongistigma belongs to the detersa group of the subgenus Euxoa. They are medium-size (3.0-3.4 cm wingspan) grey-brown moths with lighter brown and black markings. The costa is evenly colored pale grey or buff. The orbicular is narrow and usually elongate, and the reniform is a rather narrow crescent; both are pale buff or grey brown like the costa. There is a long, thick prominent black basal streak connecting to the black claviform. The remainder of the wing is brown, darkest in the terminal area. The subterminal area has several lighter brown streaks crossing it, and usually a tan streak from below the orbicular almost to the anal angle. The hindwings are dirty white, darkening toward the outer margin in males and light smoky brown in females. Sexes similar. The pale buff costa and orbicular spot, the later lacking a white-rimmed dark center, and the prominent black basal streak will separate it from the similar E. olivalis and E. plagigera. In general a darker, less streaky or mottled moth than these otherwise similar species.

Scientific Name Euxoa oblongistigma Habitat Arid grasslands with sagebrush. Seasonality Adults have been collected in Alberta from late July through August. Identification
Euxoa oblongistigma belongs to the detersa group of the subgenus Euxoa. They are medium-size (3.0-3.4 cm wingspan) grey-brown moths with lighter brown and black markings. The costa is evenly colored pale grey or buff.…
Euxoa oblongistigma belongs to the detersa group of the subgenus Euxoa. They are medium-size (3.0-3.4 cm wingspan) grey-brown moths with lighter brown and black markings. The costa is evenly colored pale grey or buff. The orbicular is narrow and usually elongate, and the reniform is a rather narrow crescent; both are pale buff or grey brown like the costa. There is a long, thick prominent black basal streak connecting to the black claviform. The remainder of the wing is brown, darkest in the terminal area. The subterminal area has several lighter brown streaks crossing it, and usually a tan streak from below the orbicular almost to the anal angle. The hindwings are dirty white, darkening toward the outer margin in males and light smoky brown in females. Sexes similar. The pale buff costa and orbicular spot, the later lacking a white-rimmed dark center, and the prominent black basal streak will separate it from the similar E. olivalis and E. plagigera. In general a darker, less streaky or mottled moth than these otherwise similar species.
Life History No information available. Conservation A widespread and fairly common species; no concerns. Diet Info No information available. Range
From southwestern Saskatchewan west to the southern interior of BC, south to eastern central California and northern New Mexico and east to western North and South Dakota. In Alberta they have been collected in the…
From southwestern Saskatchewan west to the southern interior of BC, south to eastern central California and northern New Mexico and east to western North and South Dakota. In Alberta they have been collected in the arid grasslands region north to the Red Deer River.

Citation

Page Citation for Euxoa oblongistigma

Page Citation

"Euxoa oblongistigma, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-2364. Accessed 21 Jan. 2022.

Taxonomic Hierarchy

Kingdom Animalia Phylum Arthropoda Class Hexapoda Subclass Insecta Order Lepidoptera Suborder Ditrysia Superfamily Noctuoidea Family Noctuidae Subfamily Noctuinae Genus Euxoa Species Euxoa oblongistigma
This hierarchy is created from our museum records, it may not always accurately reflect modern taxonomies.

Taxonomic Hierarchy for University of Alberta E.H. Strickland Entomological Museum