|scientific name Euxoa bochus |
Open montane conifer forest.
Adults have been collected in Alberta in early August.
A medium-size (3.4-3.6 cm wingspan) dull grey-brown or reddish-brown moth with few markings. They have a narrow, black prothoracic collar. The forewings are light grey, heavily dusted with dark blackish-brown or red-brown scales, heaviest along the leading half of the wing and giving it a blurred appearance. The antemedian and postmedian lines are visible but poorly defined, as is a blotch-like reniform spot. There is also a narrow dark band on the terminal area. The hindwings are dirty pearl white, slightly dusted with dark scales toward the margin and along the veins, and with a dark discal spot. Females slightly darker. Male antennae biserrate and bifasiculate.
Poorly known. Adults are nocturnal and come to light, and there is a single annual brood.
Rare and local in extreme southwestern Alberta.
The larvae have been reared on clover, plantain and Hypochaeris radicata (L.), but the larval pattern suggests it is naturally a grass feeder (Lafontaine, 2004).
A western species; Vancouver Island south southern Utah and northern New Mexico, east to central Colorado, Wyoming and the Cypress Hills area of southwestern Saskatchewan. In Alberta it has been collected once or twice only in Crowsnest Pass region.
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