Species Details

Enypia venata

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

Common NameVariable Girdle SeasonalityIn Alberta adults fly in August IdentificationA mid-sized, grey geometrid with heavy grey speckling and a dark broad median band, with a heavily scalloped border. Hindwing paler, with a faint PM line. Discal spot black, not white as in Caripeta species. Very similar to Nepytia species (particulary freemani), but in Enypia the forewing PM line comes closest to the wing margin near the apex (where it joins the costa), and in Nepytia the PM line is is nearest the wing margin in the subapica (not apical) area. Distinguished from E. griseata by the AM line, which jogs out to the discal spot in venata - the discal spot is well-separated from the AM band in griseata.

Scientific Name Enypia venata Common Name Variable Girdle Habitat Montane coniferous forest. In the Kananaskis River valley, this species is found in lodgepole pine - Seasonality In Alberta adults fly in August Identification
A mid-sized, grey geometrid with heavy grey speckling and a dark broad median band, with a heavily scalloped border. Hindwing paler, with a faint PM line. Discal spot black, not white as in Caripeta species. Very…
A mid-sized, grey geometrid with heavy grey speckling and a dark broad median band, with a heavily scalloped border. Hindwing paler, with a faint PM line. Discal spot black, not white as in Caripeta species. Very similar to Nepytia species (particulary freemani), but in Enypia the forewing PM line comes closest to the wing margin near the apex (where it joins the costa), and in Nepytia the PM line is is nearest the wing margin in the subapica (not apical) area. Distinguished from E. griseata by the AM line, which jogs out to the discal spot in venata - the discal spot is well-separated from the AM band in griseata.
Life History
Larvae are rather stout for a geometrid, somewhat resembling cutworms. They exhibit a grey and a rust-brown colour morph, and feed on conifer foliage until the onset of cooler weather in the fall; hibernation is in…
Larvae are rather stout for a geometrid, somewhat resembling cutworms. They exhibit a grey and a rust-brown colour morph, and feed on conifer foliage until the onset of cooler weather in the fall; hibernation is in the 4th or 5th larval instar (Duncan 2003). Adults are nocturnal and come to lights.
Conservation Not of concern. Diet Info Larvae feed on conifers. Western hemlock (Tsuga), Douglas-fir (Pseudotsuga), and spruce (Picea) are reported hosts (Prentice 1963). Range Southern Alaska to New Mexico, east to western Alberta (McGuffin 1987).

Citation

Page Citation for Enypia venata

Page Citation

"Enypia venata, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-4196. Accessed 29 Nov. 2021.

Taxonomic Hierarchy

Kingdom Animalia Phylum Arthropoda Class Hexapoda Subclass Insecta Order Lepidoptera Suborder Ditrysia Superfamily Geometroidea Family Geometridae Subfamily Ennominae Tribe Ourapterygini Genus Enypia Species Enypia venata
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