Species Details

Xestia imperita

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

SeasonalityAdults from mid July through August, peaking in late July. IdentificationA medium-size (approx. 3.5 cm wingspan) moth with light and dark grey forewings. The antemedian and postmedian lines are doubled, outlined with dark scales and filled with paler scales. The subterminal line is wavy, with bordered with patches of black patches of at the costa and in a wedge distad from the reniform. The most prominent markings are the large oval or teardrop-shaped pale grey orbicular spot and the similar size reniform spot, the later largely filled with rust-brown scales. The rust-brown scales in the reniform separate impertita from other Alberta Xestia sp. Sexes similar, but male antennae setose; female simple. Lafontaine (1998) illustrates the genitalia of both sexes.

Scientific Name Xestia imperita Habitat open coniferous forest, bogs and similar boreal habitats Seasonality Adults from mid July through August, peaking in late July. Identification
A medium-size (approx. 3.5 cm wingspan) moth with light and dark grey forewings. The antemedian and postmedian lines are doubled, outlined with dark scales and filled with paler scales. The subterminal line is wavy,…
A medium-size (approx. 3.5 cm wingspan) moth with light and dark grey forewings. The antemedian and postmedian lines are doubled, outlined with dark scales and filled with paler scales. The subterminal line is wavy, with bordered with patches of black patches of at the costa and in a wedge distad from the reniform. The most prominent markings are the large oval or teardrop-shaped pale grey orbicular spot and the similar size reniform spot, the later largely filled with rust-brown scales. The rust-brown scales in the reniform separate impertita from other Alberta Xestia sp. Sexes similar, but male antennae setose; female simple. Lafontaine (1998) illustrates the genitalia of both sexes.
Life History
Adults are nocturnal and come to light. There is a single annual brood in Alberta, with adults from mid July through August, peaking in late July. The larva is described by Lafontaine (1998). The larval host plants…
Adults are nocturnal and come to light. There is a single annual brood in Alberta, with adults from mid July through August, peaking in late July. The larva is described by Lafontaine (1998). The larval host plants are apparently unknown, although larvae have been reared in the lab on blueberry (Vaccinium myrtilloides Michx.)
Diet Info The larval host plants are apparently unknown, although larvae have been reared in the lab on blueberry Range
Newfoundland and northern New England west to southern YT and BC, north to the arctic coast and south in the mountains to CO. In Alberta it occurs throughout the boreal forest, foothills and mountains. It is found in…
Newfoundland and northern New England west to southern YT and BC, north to the arctic coast and south in the mountains to CO. In Alberta it occurs throughout the boreal forest, foothills and mountains. It is found in open coniferous forest, bogs and similar boreal habitats.
Notes The ground color can vary considerably; some specimens from the mountains are very dark, almost black. However even on such specimens the rust-brown scales are evident.

Citation

Page Citation for Xestia imperita

Page Citation

"Xestia imperita, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-6218. 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 Xestia Species Xestia imperita
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