**Stonefly Genus Sweltsa (Sallflies)**

Mayflies

Caddisflies

Stoneflies

Taxonomic Navigation -?-

Kingdom Animalia (Animals)

» Phylum Arthropoda (Arthropods)

» Class Insecta (Insects)

» Order Plecoptera (Stoneflies)

» Family Chloroperlidae (Sallflies)

» Genus Sweltsa (Sallflies)

Species in Sweltsa
Sweltsa borealisSallfly	1	1
Sweltsa coloradensisSallfly	0	0
Sweltsa fidelisSallfly	2	3
Sweltsa onkosSallfly	1	8

24 species aren't included.

Common Name

Match	Common Name
	Sallflies

Pictures Below ↓

Only Sweltsa coloradensis has been specifically mentioned as a common species in my sources.

Pictures of 9 Stonefly Specimens in the Genus Sweltsa:

Specimen Page:12

Sweltsa onkos (Sallfly) Stonefly Adult

View 8 PicturesI'm just guessing this is Chloroperlidae, since it's little and yellow. If anyone has a less haphazard identification, feel free to post it.

Collected May 15, 2007 from Mystery Creek #62 in New York
Added to Troutnut.com by Troutnut on May 18, 2007

Sweltsa (Sallflies) Stonefly Nymph

View 6 Pictures

Collected May 13, 2007 from the Delaware River in New York
Added to Troutnut.com by Troutnut on May 18, 2007

Female Sweltsa (Sallflies) Stonefly Adult

View 8 PicturesThese stoneflies--abundant during midday--seemed at first to be flying around with plain yellow bodies, but on closer inspection turn out to have striking, fiery red abdomens.

Collected June 30, 2019 from the Madison River in Montana
Added to Troutnut.com by Troutnut on July 17, 2019

Specimen Page:12

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Stonefly Genus Sweltsa (Sallflies)

Pictures of 9 Stonefly Specimens in the Genus Sweltsa:

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**Stonefly Genus Sweltsa (Sallflies)**