Siphlonurus occidentalis

Siphlonurus occidentalis is a species of primitive minnow mayfly in the family Siphlonuridae. It is found in Central America to North America. In North America its range includes southwestern, northern Canada, all of Mexico, the western United States, and Alaska.^[1][2][3][4]

Siphlonurus occidentalis
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Ephemeroptera
Family:	Siphlonuridae
Genus:	Siphlonurus
Species:	S. occidentalis
Binomial name
Siphlonurus occidentalis (Eaton, 1885)
Synonyms[1]
Siphlonurus inflatus McDunnough, 1931 Siphlurus occidentalis Eaton, 1885