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Species Page - Eulithis testata
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scientific name    Eulithis testata    

common name     Chevron Moth

habitat
It frequents mesic deciduous wooded habitats.

identification
A medium size (approx. 3.0 –3.5 cm wingspan) rusty-orange moth with broad pointed (subfalcate) forewings. “Light ochre yellow, heavily shaded and dusted with rusty orange; the lines (sometimes only the upper half of pm. and dash to apex) defined with white scaling, and costal part of st. space partly frosted with white. Lines about as in propulsata, less deeply waved; hind wing with dark border and traces of a nearly complete pm. line parallel to it.” (Forbes, 1948). Testata has a somewhat glossy appearance that, along with the white scaling on the apical dash and outside the upper pm. line, will separate it from E. propulsata.

life history
Adults are nocturnal and come to light. There is a single annual brood, with adults mid July through mid September, peaking in mid August. Reported larval hosts include poplar, birch, alder, willow, Ribes sp., and Vaccinium. FIDS host plant records for Alberta are predominantly willow (22), and to a lesser extent aspen poplar (7) and alder (1) (Prentice, 1963).

range
Holarctic. Great Britain and Scandinavia east to Japan. In North America from Newfoundland to Vancouver Island and AK, south in the east to about NJ and in the west to CO. Testata has been collected throughout most of Alberta, from the far north to wooded riparian areas in the southern grasslands, although most records come from mountains and parklands in the southern half of the province.

notes
Testata appears to be the only species in this fairly large genus that has a Holarctic distribution.

quick link
http://entomology.museums.ualberta.ca/searching_species_details.php?s=6167



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References (4)
Specimen Info
There are 102 specimens of this species in the online database
Map Distribution
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Specimen List (102)
Related Links
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