Species Details

Metanema determinata

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

Common NameDark-banded Thorn, Dark Metanema SeasonalityFlies from mid May to mid July, most common in the latter half of June. IdentificationWings two-toned grey with two straight, yellow-tan transverse lines on the forewing. Median area between AM and PM lines darker grey. Black forewing discal spot small or absent. Similar to M. inatomaria, which lacks the darker contrasting band between the two transverse lines and has yellow scales within the dark discal spot (determinata has an all-black discal spot).

Scientific Name Metanema determinata Common Name Dark-banded Thorn, Dark Metanema Seasonality Flies from mid May to mid July, most common in the latter half of June. Identification
Wings two-toned grey with two straight, yellow-tan transverse lines on the forewing. Median area between AM and PM lines darker grey. Black forewing discal spot small or absent. Similar to M. inatomaria, which lacks…
Wings two-toned grey with two straight, yellow-tan transverse lines on the forewing. Median area between AM and PM lines darker grey. Black forewing discal spot small or absent. Similar to M. inatomaria, which lacks the darker contrasting band between the two transverse lines and has yellow scales within the dark discal spot (determinata has an all-black discal spot).
Life History The mottled brown-grey and slightly flattened larva blends in well with tree bark. The pupa overwinters (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 Larvae feed on willows (Salix spp.) (Prentice 1963). Range Found throughout most of North America, from the Yukon, NWT and central BC east to Nova Scotia, south to MD, NE and NM (McGuffin 1987, Wagner et al. 2001).

Citation

Page Citation for Metanema determinata

Page Citation

"Metanema determinata, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-4302. Accessed 25 Jul. 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 determinata
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