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Catocala ultronia, the dark red underwing or ultronia underwing, is a moth of the family Erebidae. The species was first described by Jacob Hübner in 1823.[1] It is found in most of eastern North America, south to Florida and Texas. It ranges west across the southern parts of Canada to extreme southeast British Columbia.

Dark red underwing
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Superfamily:	Noctuoidea
Family:	Erebidae
Genus:	Catocala
Species:	C. ultronia
Binomial name
Catocala ultronia (Hübner, 1823)
Synonyms
Eunetis ultronia Hübner, 1823 Catocala ultronia var. mopsa H. Edwards, 1880 Catocala ultronia var. lucinda Beutenmüller, 1907 Catocala adriana H. Edwards, 1880 Catocala ultronia var. celia H. Edwards, 1880 Catocala nigrescens Cassino, 1917

The wingspan is 46–60 mm. Adults are on wing in August in one generation depending on the location.

The larvae feed on Fraxinus pennsylvanica, Malus species, Populus grandidentata, Prunus pensylvanica, Prunus serotina, Prunus virginiana, and Tilia americana.

References

Wikispecies has information related to Catocala ultronia.

Wikimedia Commons has media related to Catocala ultronia.

External links

• Anweiler, G. G. & Robinson, E. "Species Details Catocala ultronia". University of Alberta Museums. E.H. Strickland Entomological Museum. Retrieved November 10, 2020.
• Oehlke, Bill. "Catocala ultronia (Hubner, 1823) Eunetis ultronia". The Catocala Website. Archived November 22, 2008.

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