Proserpinus juanita

Proserpinus juanita, the Juanita sphinx, is a moth of the family Sphingidae first described by Herman Strecker in 1877. It is found from the US states of Montana and North Dakota, south to Arizona, and east to Missouri and Texas.

Description
The wingspan is 45–64 mm.

Biology
The larvae feed on Onagraceae species, including Oenothera, Gaura and Epilobium species