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Species Page - Euchlaena marginaria
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scientific name    Euchlaena marginaria    

common name     Ochre Euchlaena

habitat
Mixedwood and deciduous boreal forest.

seasonality
In Alberta adults fly from May to July, peaking from late May to mid June.

identification
A relatively pale, large Euchlaena. AM and PM lines more diiffuse than E. madusaria, black discal spots small but well defined. Outer third of forewing often contrasting and and slightly darker. Similar to E. tigrinaria, but lacks the black patches in the subterminal area of the wings. In eastern North America, the outer third of the wing is much darker than in western specimens; the western forms were described as Euchlaena albertanensis (Swett) but McGuffin (1981) considers these forms of marginaria. To complicate matters, Wagner et al. (2001) state that Canadian and northern US populations which have gone under the name marginaria may be a separate species from the douple-brooded marginaria of the southeastern US.

life history
The adults are nocturnal and are attracted to lights. The dark brown, mottled larva is a twig mimic, complete with two wart-like dorsal projections at the base of the abdomen (Wagner et al 2001). Ives & Wong (1988) also illustrate the larva.

conservation
Not of concern

diet info
The larvae feed on alder (Alnus sp.), white birch (Betula papyrifera) and willow (Salix sp.) in western Canada (Prentice 1963).

range
Southern interior BC east to Nova Scotia, south to FL, KY, MO and ID (McGuffin 1981, Wagner et al. 2001).

quick link
http://entomology.museums.ualberta.ca/searching_species_details.php?s=4201



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References (4)
Specimen Info
There are 82 specimens of this species in the online database
Map Distribution
Adult Seasonal Distributioncreate a collection histogram with specimens
Specimen List (82)
Related Links
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