Comprehensive Description

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General Description

A medium-size (3.8-4.4 cm wingspan) moth, with two very different forms. The nominate form has violet grey-brown forewings with a black antemedian band and basal spot with dark purple-grey between the two. There is a small black patch at the anal angle, bordered on the inner edge with white and along the lower edge with cinnamon. A series of small black dots or wedges marks the outer margin at the veins. The hindwings are grey. Form expultrix lacks stong contrasting markings. It is grey-brown with lighter pink-brown in the basal area, around the orbicular-reniform area and at the anal angle. The reniform and orbicular are each indicated by a small brown spot. The antennae are simple and the sexes are similar.


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© University of Alberta Museums

Source: University of Alberta Museums

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