Datana integerrima, the walnut caterpillar moth, is a moth of the family Notodontidae. It is found in eastern North America, from Ontario, through most of the Eastern States west to Minnesota and south to northern Mexico.

Walnut caterpillar moth
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Superfamily:	Noctuoidea
Family:	Notodontidae
Genus:	Datana
Species:	D. integerrima
Binomial name
Datana integerrima Grote & Robinson, 1866

The wingspan is 35–50 mm. Adults are on wing from May to August.

The larvae feed on hickory, pecan, Carya and Juglans species.