Species Details

Epirrhoe alternata

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

Common NameWhite-banded Toothed Carpet IdentificationA medium-small size (wingspan 2-2.5 cm) broad-winged dull charcoal and white moth. Forewings dull black or dark grey, crossed by a doubled white antemedian and prominent white postmedian band, the later with a faint grey line splitting it in two. Terminal areas grey, with upper half broader and darker, divided by a scalloped white line. Forewing discal spot a small black oval. Hindwings lighter grey, crossed by a series of obscure pale wavy lines, the white postmedian band wider and more prominent. Sexes similar; antennae in both sexes densely and finely ciliate. The smaller black and white E. sperryi is more crisply marked. Most similar to Euphyia intermedia, but greyer and with blurrier markings, not as crisp as in intermedia. The subterminal dark patch of E. intermedia is usually broken by a white streak just below the apex, but is not so divided in alternata. E. alternata also have patches of cinnamon hairs in the outer part of the dark patch on the upper forewing submargin, visible under magnification; these are lacking in E. intermedia.

Scientific Name Epirrhoe alternata Common Name White-banded Toothed Carpet Habitat E. alternata frequents open woods, edges and meadows. Identification
A medium-small size (wingspan 2-2.5 cm) broad-winged dull charcoal and white moth. Forewings dull black or dark grey, crossed by a doubled white antemedian and prominent white postmedian band, the later with a faint…
A medium-small size (wingspan 2-2.5 cm) broad-winged dull charcoal and white moth. Forewings dull black or dark grey, crossed by a doubled white antemedian and prominent white postmedian band, the later with a faint grey line splitting it in two. Terminal areas grey, with upper half broader and darker, divided by a scalloped white line. Forewing discal spot a small black oval. Hindwings lighter grey, crossed by a series of obscure pale wavy lines, the white postmedian band wider and more prominent. Sexes similar; antennae in both sexes densely and finely ciliate. The smaller black and white E. sperryi is more crisply marked. Most similar to Euphyia intermedia, but greyer and with blurrier markings, not as crisp as in intermedia. The subterminal dark patch of E. intermedia is usually broken by a white streak just below the apex, but is not so divided in alternata. E. alternata also have patches of cinnamon hairs in the outer part of the dark patch on the upper forewing submargin, visible under magnification; these are lacking in E. intermedia.
Life History Adults are nocturnal and come to light. There is a single annual brood, with adults from late May through early August, peaking in early July. Diet Info Larvae feed on species of bedstraw (Galium). Range
Holarctic; in North America found throughout much of the wooded parts of Canada, north to YT and NWT, south in the east to WV. In Alberta widespread and fairly common in the southern Boreal forest and Parklands…
Holarctic; in North America found throughout much of the wooded parts of Canada, north to YT and NWT, south in the east to WV. In Alberta widespread and fairly common in the southern Boreal forest and Parklands regions, rare in the mountains.
Notes Also known as the Striped Carpet (Jones, 1951). The illustrated adult is from Dry Island P.P.

Citation

Page Citation for Epirrhoe alternata

Page Citation

"Species Details - Epirrhoe alternata, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-6163. Accessed 28 Jun. 2022.

Taxonomic Hierarchy

Kingdom Animalia Phylum Arthropoda Class Hexapoda Subclass Insecta Order Lepidoptera Suborder Ditrysia Superfamily Geometroidea Family Geometridae Subfamily Larentiinae Tribe Xanthorhoini Genus Epirrhoe Species Epirrhoe alternata
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