Stonefly Species Pteronarcys dorsata (American Salmonfly)
Taxonomic Navigation -?-
Kingdom Animalia (Animals)
» Phylum Arthropoda (Arthropods)
» Class Insecta (Insects)
» Order Plecoptera (Stoneflies)
» Family Pteronarcyidae (Salmonflies)
» Genus Pteronarcys (Salmonflies)
» Species dorsata (American Salmonfly)
Common Names
| Match | Common Name |
 | American Salmonfly |
 | Salmonfly |
Where & When
Regions: East, MidwestTime Of Year (?): Late April through late June
Hatching Behavior
Time Of Day (?): Overnight; some dawn/dusk overflowHabitat: Fast water
Egg-Laying Behavior
Time Of Day: Overnight; some dawn/dusk overflow
Habitat: Riffles
I have watched Pteronarcys dorsata adults gather at treetop level above the riffles a hundred yards upstream from a slow stretch of water that held a tremendous swarm of Hexagenia limbata spinners thirty minutes later. I never saw more than one or two on the water, and the egg-laying supposedly happens well after dark.Habitat: Riffles
3 Stonefly Specimens in the Species Pteronarcys dorsata:
Pteronarcys dorsata (American Salmonfly) Stonefly Nymph
View 8 Pictures
View 8 PicturesRegion: Upper Midwest
Collected Feb 7, 2004
Added Jan 25, 2006
Pteronarcys dorsata (American Salmonfly) Stonefly Nymph
View 7 Pictures
View 7 PicturesRegion: Upper Midwest
Collected Jan 13, 2004
Added Jan 25, 2006
Pteronarcys dorsata (American Salmonfly) Stonefly Nymph
View 3 PicturesPteronarcys nymphs live for two years before maturing. This small one is in its first year.
View 3 PicturesPteronarcys nymphs live for two years before maturing. This small one is in its first year.Region: Upper Midwest
Collected Mar 10, 2004
Added Jan 19, 2006
1 Streamside Picture of Pteronarcys dorsata Stoneflies:
View Full Size
Large stonefly nymphs sometimes crawl quite far from the water before emerging. This empty case is from a nymph that hatched about 5 feet up in a tree 10 feet from the river.
In this picture: Stonefly Species Pteronarcys dorsata (American Salmonfly).
In this picture: Stonefly Species Pteronarcys dorsata (American Salmonfly).
 Download (2.5 MB) | |
 | PteronarcysStarring: Pteronarcys dorsata Stonefly Nymph Shot: Feb 7, 2004 Added: Mar 31, 2006 Format: WMV file Dimensions: 320x240 Camera: C740UZ |
Recent Discussions of Pteronarcys dorsata
Question 7 Replies »
Are stoneflies and salmonflies the same thing or are they just related because here in the mid west we have the stonfly hatch and if they are related the stonfly could be called the salmonfly and the salmonfly hatch is only in the west because I have trouble because I want to become a better insect identifier when it comes to fishing because i went to other sites that so a stonefly is a stonefly and a salmonfly is a salmon fly but yet you say stonefly nymph but in parenteseses you have american salmonfly so is there really no such thing as a salmonfly but it is rather called a stonefly.
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