Species Details

Euchlaena obtusaria

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

Common NameObtuse Euchlaena SeasonalityAdults fly in early June to early July. IdentificationThe ground colour varies from tan to dark chestnut brown, with a conspicuous serrate hindwing edge. Black discal spots, small but well-defined, Am and PM line faint. The combination of a strongly serrate hindwing margin and well-defined discal spots will serve to separate E. obtusaria from other Euchlaena.

Scientific Name Euchlaena obtusaria Common Name Obtuse Euchlaena Seasonality Adults fly in early June to early July. Identification
The ground colour varies from tan to dark chestnut brown, with a conspicuous serrate hindwing edge. Black discal spots, small but well-defined, Am and PM line faint. The combination of a strongly serrate hindwing…
The ground colour varies from tan to dark chestnut brown, with a conspicuous serrate hindwing edge. Black discal spots, small but well-defined, Am and PM line faint. The combination of a strongly serrate hindwing margin and well-defined discal spots will serve to separate E. obtusaria from other Euchlaena.
Life History
Up to 230 eggs are laid, hatching in only three to four days (McGuffin 1981). The larva is an excellent twig mimic, striped with pale and brown and bearing two short dorsal protuberances on the fifth abdominal segment…
Up to 230 eggs are laid, hatching in only three to four days (McGuffin 1981). The larva is an excellent twig mimic, striped with pale and brown and bearing two short dorsal protuberances on the fifth abdominal segment (Wagner et al. 2001). The larva overwinters, likely in thew fifth instar (McGuffin 1981).
Conservation Apparently rare in Alberta; status uncertain. Diet Info Larval hosts may include birch(Betula)and cherry(Prunus) in Alberta; however, due to possible confusion of this species with E. muzaria (Wagner et al 2001), host records need to be confirmed. Range East-central and southern Alberta east to Nova Scotia, south to Florida and Texas. This species may actually be confined to the eastern US, with Canadian populations referable to E. muzaria (Wagner et al. 2001).
Euchlaena obtusaria
Euchlaena obtusaria
Euchlaena obtusaria

Citation

Page Citation for Euchlaena obtusaria

Page Citation

"Euchlaena obtusaria, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-4202. 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 Angeronini Genus Euchlaena Species Euchlaena obtusaria
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