Species Details

Cabera borealis

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

SeasonalityIn Alberta flies from late May to late July, peaking in mid to late June. IdentificationThis is our smallest species of Cabera, and although variable, is duskier and darker than the other species. The ground colour is a dull beige, with variable amounts of dark chestnut-brown speckling. The PM line is usually distinct, and males have a broad, dark marginal band which is absent in females. Resembles some Scopula species more than other Cabera, but Scopula have irregular or wavy transverse lines and often have discal spots, which are absent in C. borealis. The type locality of this species is given as "near Calgary" by McGuffin (1981).

Scientific Name Cabera borealis Habitat Moist, open boreal forest and peat bogs. Seasonality In Alberta flies from late May to late July, peaking in mid to late June. Identification
This is our smallest species of Cabera, and although variable, is duskier and darker than the other species. The ground colour is a dull beige, with variable amounts of dark chestnut-brown speckling. The PM line is…
This is our smallest species of Cabera, and although variable, is duskier and darker than the other species. The ground colour is a dull beige, with variable amounts of dark chestnut-brown speckling. The PM line is usually distinct, and males have a broad, dark marginal band which is absent in females. Resembles some Scopula species more than other Cabera, but Scopula have irregular or wavy transverse lines and often have discal spots, which are absent in C. borealis. The type locality of this species is given as "near Calgary" by McGuffin (1981).
Life History
Adults fly on sunny afternoons in and near wet spruce bogs and moist open conifer woods; they are not known to come to light. The flight season coincides with the time the spruce bud scales are cast off (McGuffin…
Adults fly on sunny afternoons in and near wet spruce bogs and moist open conifer woods; they are not known to come to light. The flight season coincides with the time the spruce bud scales are cast off (McGuffin 1981). The moth rests with its wings held upright, unlike other Cabera. Eggs are laid on the underside of host leaves and hatch in about two weeks. The pale-striped, yellow-green larva matures in about four weeks, and the pupa overwinters (McGuffin 1981).
Conservation Not of concern. Diet Info Larvae feed primarily on willow (Salix spp.), rarely on Populus and Betula (Prentice 1963). Range A northern boreal species restricted to Alaska and Canada, south to central PQ, interior BC, and the Bow Valley in the AB Rocky Mountain foothills (McGuffin 1981).

Citation

Page Citation for Cabera borealis

Page Citation

"Cabera borealis, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-3979. 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 Caberini Genus Cabera Species Cabera borealis
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