Species Details

Euxoa rufula

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

Common NameMountain Dart SeasonalityAdults have been collected in Alberta in August. IdentificationA medium-size (3.0-3.4 cm wingspan) stubby-winged dark red-brown moth. The basal and postmedian areas are paler than the remainder of the wing. The cubital vein is lightly marked with paler scales, and there is a row of black sagitate marks just inside the subterminal line. The orbicular and reniform spots are finely outlined with black scales, lined inside with pale scales. The hindwings are sooty brown. The small size and ruddy coloration separate rufula from most similar Euxoa, but see also E. intrita. Questionable specimens may be identified using genital characters. The uncus of rufula is very broad and flattened dorsoventrally, and the setae on the dorsal surface are stouter than those near the apex on the ventral surface, which is unique in the Euxoa. The female has an oval unisaccate bursa and lacks flanges on the ovipositor lobes.

Scientific Name Euxoa rufula Common Name Mountain Dart Habitat Dry montane coniferous forest. Seasonality Adults have been collected in Alberta in August. Identification
A medium-size (3.0-3.4 cm wingspan) stubby-winged dark red-brown moth. The basal and postmedian areas are paler than the remainder of the wing. The cubital vein is lightly marked with paler scales, and there is a row…
A medium-size (3.0-3.4 cm wingspan) stubby-winged dark red-brown moth. The basal and postmedian areas are paler than the remainder of the wing. The cubital vein is lightly marked with paler scales, and there is a row of black sagitate marks just inside the subterminal line. The orbicular and reniform spots are finely outlined with black scales, lined inside with pale scales. The hindwings are sooty brown. The small size and ruddy coloration separate rufula from most similar Euxoa, but see also E. intrita. Questionable specimens may be identified using genital characters. The uncus of rufula is very broad and flattened dorsoventrally, and the setae on the dorsal surface are stouter than those near the apex on the ventral surface, which is unique in the Euxoa. The female has an oval unisaccate bursa and lacks flanges on the ovipositor lobes.
Life History Poorly known. There is a single brood each year and the adults are nocturnal and attracted to light. Conservation An uncommon but fairly widespread species; no obvious concerns. Diet Info No data. Related species of Euxoa are general feeders on low-growing plants. Range
Southern Yukon south in the mountains to New Mexico and Arizona, and northeastern California. Subspecies basiflava occurs from southern Yukon south through the mountains of southern Alberta and British Columbia, west…
Southern Yukon south in the mountains to New Mexico and Arizona, and northeastern California. Subspecies basiflava occurs from southern Yukon south through the mountains of southern Alberta and British Columbia, west to northeastern California. In Alberta, rufula has been collected in the foothills and mountains.

Citation

Page Citation for Euxoa rufula

Page Citation

"Species Details - Euxoa rufula, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-4248. Accessed 13 Aug. 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 rufula
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