Species Details

Metanema inatomaria

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

Common NameYellow-lined Thorn, Pale Metanema SeasonalityLate May to mid July, most common in June IdentificationWings even grey (sometimes with slight dark speckling), and two straight, yellow-tan transverse lines on the forewing. Prominent black forewing discal spot, dark crescent along forewing margin near the apex, with a yellow border. Likely only to be confused with M. determinate, which has a contrasting dark band between the two forewing transverse lines, and has yellow scales within the dark discal spot (determinate has an all-black discal spot).

Scientific Name Metanema inatomaria Common Name Yellow-lined Thorn, Pale Metanema Habitat Deciduous and mixedwood forests and woodlands. Seasonality Late May to mid July, most common in June Identification
Wings even grey (sometimes with slight dark speckling), and two straight, yellow-tan transverse lines on the forewing. Prominent black forewing discal spot, dark crescent along forewing margin near the apex, with a…
Wings even grey (sometimes with slight dark speckling), and two straight, yellow-tan transverse lines on the forewing. Prominent black forewing discal spot, dark crescent along forewing margin near the apex, with a yellow border. Likely only to be confused with M. determinate, which has a contrasting dark band between the two forewing transverse lines, and has yellow scales within the dark discal spot (determinate has an all-black discal spot).
Life History
The mottled grey and slightly flattened larva blends in well with tree bark. The winter is spent in the pupal stage, the larva cocooning in a bark crevice (Wagner et al 2001). Adults fly up when disturbed during the…
The mottled grey and slightly flattened larva blends in well with tree bark. The winter is spent in the pupal stage, the larva cocooning in a bark crevice (Wagner et al 2001). Adults fly up when disturbed during the day, and also come to light at night.
Conservation Not of concern. Diet Info The preferred hosts are poplars (Populus spp.), and occasionally willows (Salix spp.). Coniferous hosts as indicated by several larval collections are likely in error and require confirmation (Prentice 1963). Range East-central BC and southern NWT / YT east to Nova Scotia, south to MS, TX, and AZ (McGuffin 1987, Wagner et al. 2001).

Citation

Page Citation for Metanema inatomaria

Page Citation

"Metanema inatomaria, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-4317. Accessed 16 Oct. 2021.

Taxonomic Hierarchy

Kingdom Animalia Phylum Arthropoda Class Hexapoda Subclass Insecta Order Lepidoptera Suborder Ditrysia Superfamily Geometroidea Family Geometridae Subfamily Ennominae Tribe Anagogini Genus Metanema Species Metanema inatomaria
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