Comprehensive Description

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General Description

A small (approx. 2 cm wingspan) broad-winged moth. The forewings are rusty-orange in the basal area, with a broad charcoal median band. Median band may be dark red-brown in some specimens. The postmedian band bordering the distal side of the median band is usually light tan or whitish along the lower half, and dark red-brown on the upper half, ending in a dark brown or black blotch at the costa. Subterminal area mottled light brown with a characteristic doubled black spot in the upper half, which is the basis of the common name of "twin-spot". The hindwings are pale tan with a small dark discal mark, darkened by a series of diffuse parallel wavy brown lines. Sexes similar, but male antennae bipectinae, female simple. The species is quite variable in appearance.


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© University of Alberta Museums

Source: University of Alberta Museums

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