The Signate Melanolophia has a wingspan of approximately 1 to 1.5 inches. The wings are gray with dark brown to black lines and spots. This moth is very similar to the Canadian Melanolophia, which occurs over most of its range, but signataria has less mottling. Also the postmedian line is usually straighter on signataria. The last instar of the larva is pale yellow-green with no markings. The head is pale green. When mature it grows to about 1.25 inches. This moth was identified with the help of volunteer experts at the BugGuide web site.
The frequency of occurrence of this moth in Fontenelle Forest and Neale Woods is unknown. The individual shown here was photographed at Fontenelle Forest Nature Center in early April. Adults are attracted to artificial lights.
The larva feeds on leaves of American elm, maples, oaks, poplars and leaves of other trees. The larvae feed mostly at night. The pupa overwinters.
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