Prairie sphinx moth

The prairie sphinx moth or Wiest's primrose sphinx (Euproserpinus wiesti) is a species of moth in the family Sphingidae. It is found in the Western United States.^[3] The habitat consists of sand washes and prairie blow-outs.

Prairie sphinx moth
Conservation status
Critically Endangered  (IUCN 2.3)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Sphingidae
Genus:	Euproserpinus
Species:	E. wiesti
Binomial name
Euproserpinus wiesti Sperry, 1939[2]

The wingspan is 32–49 mm.

There is one generation per year with adults on wing from May to June. Adults nectar at flowers during the day.

Larvae have been recorded feeding on Oenothera latifolia.