Catocala micronympha

Catocala micronympha, the little nymph underwing or little bride underwing, is a moth of the family Erebidae. The species was first described by Achille Guenée in 1852. It is found in North America from southern Ontario, Quebec, and Manitoba through New Hampshire, Connecticut, and New Jersey to Florida, west to Texas and then north through Oklahoma, Kansas, Iowa, to Wisconsin and Minnesota and then east to Michigan.

Lectotype of Catocala gisela, now considered to be a synonym of Catocala micronympha

Little nymph underwing
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Superfamily:	Noctuoidea
Family:	Erebidae
Genus:	Catocala
Species:	C. micronympha
Binomial name
Catocala micronympha Guenée, 1852[1]
Synonyms
Ephesia micronympha Catocala timandra H. Edwards, 1880 Catocala hero Hulst, 1884 Catocala atarah Strecker, 1874 Catocala gisela Meyer, 1880 Catocala fratercula Grote & Robinson, 1866 Catocala helene Pilate, 1882 Catocala ouwah Poling, 1901 Catocala fratercula atarah Catocala fratercula gisela Catocala fratercula hero Catocala fratercula jaquenetta Catocala fratercula ouwah Catocala fratercula timandra Catocala micronympha fratercula Catocala fratercula var. jacquenetta H. Edwards, 1880 Catocala fratercula var. hero H. Edwards, 1884

The wingspan is 35–50 mm. Adults are on wing from April to September depending on the location. There is probably one generation per year.

The larvae feed on Quercus macrocarpa, Quercus stellata, and Quercus virginiana