Blog & Latest Updates
Fly Fishing Articles
Insects by Common Name

Trout Streams & Rivers
Trout Pictures
Underwater Pictures

Desktop Backgrounds
Stream & Bug Videos
Image Use Pricing

Insect Order Plecoptera (Stoneflies)

Mayflies

Caddisflies

Stoneflies

Taxonomic Navigation -?-

Kingdom Animalia (Animals)

» Phylum Arthropoda (Arthropods)

» Class Insecta (Insects)

» Order Plecoptera (Stoneflies)

Family in Plecoptera
CapniidaeSnowflies	0	0
ChloroperlidaeSallflies	0	0
LeuctridaeNeedleflies	0	0
NemouridaeForestflies	0	0
PeltoperlidaeRoachflies	0	0
PerlidaeGolden Stones	0	0
PerlodidaeSpringflies and Yellow Stones	0	0
PteronarcyidaeSalmonflies	0	0
TaeniopterygidaeWillowflies	0	3

1 family isn't included.

Common Name

Match	Common Name
	Stoneflies

Pictures Below ↓

This is page 4 of specimens of Plecoptera. Visit the main Plecoptera page for:

The behavior and habitat of Plecoptera.
6 underwater pictures of Plecoptera.

Pictures of 151 Stonefly Specimens:

Specimen Page:1...345...16

Tallaperla (Roachflies) Stonefly Nymph

View 6 PicturesThis is the first specimen of the Peltoperlidae stonefly family that I've collected. It's very small and probably an early instar (Instar: Many invertebrates molt through dozens of progressively larger and better-developed stages as they grow. Each of these stages is known as an instar. Hard-bodied nymphs typically molt through more instars than soft-bodied larvae.), but I'm not choosy about new bugs.

Collected April 19, 2006 from Mongaup Creek in New York
Added to Troutnut.com by Troutnut on April 21, 2006

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

Capniidae (Snowflies) Stonefly Nymph

View 4 Pictures

Collected March 13, 2005 from Cascadilla Creek in New York
Added to Troutnut.com by Troutnut on April 5, 2006

Alloperla (Sallflies) Stonefly Adult

View 6 PicturesThis specimen was completely green when I collected it from among many others gathered on a midstream rock along with their nymphal shucks (

View Full Size

Here's an underwater view of the pupal shucks of several already-emerged Brachycentrus numerosus caddisflies.

Shuck: The shed exoskeleton left over when an insect molts into its next stage or instar. Most often it describes the last nymphal or pupal skin exited during emergence into a winged adult.) early in the morning. There was also a yellow one with them, which I assumed was a different species. Now that I've seen how this one started changing from green to yellow, I have to wonder if they weren't the same species and the yellow one was just older.

Collected May 29, 2007 from Brodhead Creek in Pennsylvania
Added to Troutnut.com by Troutnut on June 4, 2007

Female Strophopteryx fasciata (Mottled Willowfly) Stonefly Adult

View 4 PicturesSeveral stoneflies of this species were the first adult insects I found in 2004 when I started this site. The hatch was sparse but lasted a good part of the day, and I noted a few good rises despite the early season cold. They ended up struggling on the water's surface fairly often.

Collected March 16, 2004 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Agnetina capitata (Golden Stone) Stonefly Nymph

View 5 Pictures

Collected March 29, 2005 from Salmon Creek in New York
Added to Troutnut.com by Troutnut on April 7, 2006

Acroneuria lycorias (Golden Stone) Stonefly Nymph

View 4 PicturesThe presence of anal gills, large dark spot in the center of the pale occipital bar point to lycorias.

Collected January 13, 2004 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Isoperla (Stripetails and Yellow Stones) Stonefly Nymph

View 4 Pictures

Collected February 5, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Isoperla (Stripetails and Yellow Stones) Stonefly Nymph

View 4 Pictures

Collected March 9, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Paragnetina media (Embossed Stonefly) Stonefly Nymph

View 4 Pictures

Collected February 7, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Specimen Page:1...345...16

Jargon Defined:

Instar: Many invertebrates molt through dozens of progressively larger and better-developed stages as they grow. Each of these stages is known as an instar. Hard-bodied nymphs typically molt through more instars than soft-bodied larvae.

View Full Size

Here's an underwater view of the pupal shucks of several already-emerged Brachycentrus numerosus caddisflies.

Shucks: The shed exoskeleton left over when an insect molts into its next stage or instar. Most often it describes the last nymphal or pupal skin exited during emergence into a winged adult.

Useful References:

Schwiebert, Ernest G. 1955. Matching the Hatch. MacMillan Publishing Company.

Swisher, Doug and Carl Richards. 2000. Selective Trout. The Lyons Press.