Species Details

Paleacrita vernata

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

Common NameSpring Cankerworm SeasonalityFlies during in early spring, the single Alberta record is for April 29th. IdentificationThis nondescript, delicate geometrid moth is most similar to, although not closely related to, species of Operophtera, which fly in late fall. The forewing is a uniform grey to slightly mottled, with the transverse bands obscure or reduced to dark patches along the forewing costa. The slightly paler hindwing has a faint discal spot. Females are wingless.

Scientific Name Paleacrita vernata Common Name Spring Cankerworm Habitat Possibly restricted to prairie shrubland or grasslands riparian forest. Seasonality Flies during in early spring, the single Alberta record is for April 29th. Identification
This nondescript, delicate geometrid moth is most similar to, although not closely related to, species of Operophtera, which fly in late fall. The forewing is a uniform grey to slightly mottled, with the transverse…
This nondescript, delicate geometrid moth is most similar to, although not closely related to, species of Operophtera, which fly in late fall. The forewing is a uniform grey to slightly mottled, with the transverse bands obscure or reduced to dark patches along the forewing costa. The slightly paler hindwing has a faint discal spot. Females are wingless.
Life History
The eggs are laid in clusters of 100 to 250 in bark crevices, and do not hatch until bud break, occasionally as much as 51 days later. Larvae feed on young foliage and are mature by late July, at which point they…
The eggs are laid in clusters of 100 to 250 in bark crevices, and do not hatch until bud break, occasionally as much as 51 days later. Larvae feed on young foliage and are mature by late July, at which point they burrow several inches into the soil and form a hibernation chamber, pupating in late winter (McGuffin 1977, Wagner et al. 2001).
Conservation Limited distribution in Alberta but widespread (sometimes a pest) elsewhere. Diet Info A large variety of deciduous trees and shrubs, particularly maples, elms, birches and cherry (McGuffin 1977). Range Atlantic seaboard west to Alberta, Texas and California. Sporadic in the southern part of the Prairie Provinces (McGuffin 1977).

Citation

Page Citation for Paleacrita vernata

Page Citation

"Paleacrita vernata, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-4466. Accessed 27 Oct. 2021.

Taxonomic Hierarchy

Kingdom Animalia Phylum Arthropoda Class Hexapoda Subclass Insecta Order Lepidoptera Suborder Ditrysia Superfamily Geometroidea Family Geometridae Subfamily Ennominae Tribe Bistonini Genus Paleacrita Species Paleacrita vernata
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