The Ultronia Underwing is a medium-sized underwing moth with mottled gray-and-black forewings and bright red hindwings with a broad black median band. It is one of the most commonly encountered underwing moths at lights across the eastern United States. Like its relatives it rests cryptically on bark by day.
Best time to see a Ultronia Underwing
The best time to see a Ultronia Underwing is June–July, when about 65% of U.S. sightings happen, based on 4,381 research-grade iNaturalist observations.
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Recent Ultronia Underwing sightings near you
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