Catocala unijuga, the once-married underwing, is a moth of the family Erebidae. The species was first described by Francis Walker in 1858.[1][2] It is found in North America from Newfoundland west to south central British Columbia, south to Kentucky and Missouri in the east, Colorado and Utah in the west.

Once-married underwing
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Superfamily:	Noctuoidea
Family:	Erebidae
Genus:	Catocala
Species:	C. unijuga
Binomial name
Catocala unijuga Walker, [1858]
Synonyms
Catocala lucilla Worthington, 1883 Catocala unijuga var. agatha Beutenmüller, 1907 Catocala unijuga var. fletcheri Beutenmüller, 1903 Catocala patricia Cassino, 1917 Catocala helena Cassino, 1917 Catocala cassinoi Beutenmüller, 1918

The wingspan is 68–82 mm (2.7–3.2 in). Adults are on wing from July to September in one generation depending on the location.

The larvae feed on Populus tremuloides, Populus nigra and Salix species.

Subspecies

• Catocala unijuga unijuga
• Catocala unijuga patricia Cassino, 1917 (Utah)

References

Wikispecies has information related to Catocala unijuga.

Wikimedia Commons has media related to Catocala unijuga.

External links

• Robinson, E. & Anweiler, G. G. "Species Details Catocala unijuga". University of Alberta Museums. E.H. Strickland Entomological Museum. Retrieved November 11, 2020.
• Oehlke, Bill. "Catocala unijuga Walker, [1858]". The Catocala Website. Archived October 14, 2008.

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