Sweltsa (Little Green Stone)	nymph Copyright © 2012 Robert G. Hendricks	adult Copyright © 2006 Bob Newell
	Mature nymphs typically have black hairs flattened against the underside of the thorax between the legs.	Adults typically have dark pigment on the head & thorax, usually w/abdominal stripe; male w/ large epiprocts & small dorsal process on 9th segment.
Sweltsa adamantea
Sweltsa borealis
Sweltsa coloradensis
Sweltsa exquisita
Sweltsa fidelis
Sweltsa occidens
Sweltsa oregonensis
Sweltsa pacifica
Sweltsa revelstoka

State of Washington distribution is based on: Valid Stonefly Names for North America.