The Gray-edged Hypena has a wingspan of 1 to 1.25 inches. This moth is sexually dimorphic. The male is sooty brown. The female is paler with a rusty brown median band and jagged brown antemedian line. Both sexes have a lilac gray band below the median band. The hindwing is plain brown. The larva is pale green with an elongate body that has a conspicuous yellow subdorsal stripe. It grows to 1.25 inches.
The frequency of occurrence of this moth at Fontenelle Forest and Neale Woods is not known. It was photographed at Fontenelle Forest on July 23, 2013 coming to artificial lights.
This moth is also called Gray-edged Snout. The larvae eat the leaves of Black Walnut trees. The species overwinters as a pupa in a cocoon spun in leaf litter.
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