Species Details

Euxoa castanea

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

SeasonalityAdults are on the wing in Alberta from early July through August. IdentificationA medium-size moth (3.5-3.8 cm wingspan) with dark chestnut brown forewings dusted with black scales. The subterminal area is usually lighter in color than the median area, and the terminal area is dark grey brown. The costa and cubital vein are much lighter and contrasting buff or silvery white. The reniform spot and oval orbicular spot are also buff or silver white, with pale grey centers. The basal dash and claviform spots are black, as is the area between the reniform and orbicular spot in most specimens. The hindwings are grey-brown, with a dark discal mark. The antennae of males are biserrate and bifasciculate, and females are simple (filiform). The chestnut color of the forewings and the pale cubital vein will separate castanea from the similar but dark grey or brown E. idahoensis. It belongs to the E. detersa group of the genus Euxoa.

Scientific Name Euxoa castanea Habitat Dry woodlands, including aspen, Lodgepole pine and mixedwood forests. Seasonality Adults are on the wing in Alberta from early July through August. Identification
A medium-size moth (3.5-3.8 cm wingspan) with dark chestnut brown forewings dusted with black scales. The subterminal area is usually lighter in color than the median area, and the terminal area is dark grey brown. …
A medium-size moth (3.5-3.8 cm wingspan) with dark chestnut brown forewings dusted with black scales. The subterminal area is usually lighter in color than the median area, and the terminal area is dark grey brown. The costa and cubital vein are much lighter and contrasting buff or silvery white. The reniform spot and oval orbicular spot are also buff or silver white, with pale grey centers. The basal dash and claviform spots are black, as is the area between the reniform and orbicular spot in most specimens. The hindwings are grey-brown, with a dark discal mark. The antennae of males are biserrate and bifasciculate, and females are simple (filiform). The chestnut color of the forewings and the pale cubital vein will separate castanea from the similar but dark grey or brown E. idahoensis. It belongs to the E. detersa group of the genus Euxoa.
Life History Poorly known. Adults are attracted to light. There is a single brood each year. Conservation A common, widespread species. No concerns. Diet Info No information available. Range
From the Dakotas and southwestern Manitoba west to central western BC, north to the Northwest Territories and south in the mountains to Arizona and New Mexico. Euxoa castanea occurs throughout much of Alberta, but is…
From the Dakotas and southwestern Manitoba west to central western BC, north to the Northwest Territories and south in the mountains to Arizona and New Mexico. Euxoa castanea occurs throughout much of Alberta, but is most commonly collected in wooded areas across the southern half of the province, and in particular in the foothills and mountains.

Citation

Page Citation for Euxoa castanea

Page Citation

"Euxoa castanea, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-3857. Accessed 19 Sep. 2021.

Taxonomic Hierarchy

Kingdom Animalia Phylum Arthropoda Class Hexapoda Subclass Insecta Order Lepidoptera Suborder Ditrysia Superfamily Noctuoidea Family Noctuidae Subfamily Noctuinae Genus Euxoa Species Euxoa castanea
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