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Arthropod Class Insecta (Insects)

Mayflies

Caddisflies

Stoneflies

Taxonomic Navigation -?-

Kingdom Animalia (Animals)

» Phylum Arthropoda (Arthropods)

» Class Insecta (Insects)

Order in Insecta
ColeopteraBeetles	0	1
DipteraTrue Flies	0	9
EphemeropteraMayflies	0	67
HemipteraTrue Bugs	0	7
HymenopteraAnts, Bees, and Wasps	0	0
LepidopteraMoths	0	0
MegalopteraHellgrammites, Dobsonflies, and Alderflies	0	0
Odonata-AnisopteraDragonflies	0	0
Odonata-ZygopteraDamselflies	0	0
OrthopteraGrasshoppers and Crickets	0	0
PlecopteraStoneflies	0	6
Psocodea	0	0
TrichopteraCaddisflies	0	55

1 order isn't included.

Common Name

Match	Common Name
	Insects

Pictures Below ↓

This is page 49 of specimens of Insecta. Visit the main Insecta page for:

The behavior and habitat of Insecta.
114 underwater pictures of Insecta.

Pictures of 1229 Insect Specimens:

Specimen Page:1...484950...124

Hydropsychidae Caddisfly Larva

View 2 Pictures

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

Acerpenna pygmaea (Tiny Blue-Winged Olive) Mayfly Nymph

View 3 PicturesThis is a very rare mayfly in western Montana. The shape of the last gill is a key to its identification. I have collected this species in only one location.

Collected May 5, 2007 from the Upper Stillwater River in Montana
Added to Troutnut.com by Bnewell on June 26, 2011

Triaenodes Caddisfly Adult

View 4 Pictures

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

Male Attenella attenuata (Small Eastern Blue-Winged Olive) Mayfly Dun

View 3 PicturesThis specimen came from the same hatch as a female.

Collected June 8, 2005 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on May 26, 2006

Female Stenacron (Light Cahills) Mayfly Spinner

View 4 Pictures

Collected July 13, 2005 from the East Branch of the Delaware River in New York
Added to Troutnut.com by Troutnut on April 14, 2006

Female Epeorus albertae (Pink Lady) Mayfly Spinner

View 4 Pictures

Collected July 11, 2017 from the North Fork Stillaguamish River in Washington
Added to Troutnut.com by Troutnut on July 12, 2017

Female Stenacron (Light Cahills) Mayfly Dun

View 4 Pictures

Collected July 14, 2004 from the Couderay River in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Male Epeorus vitreus (Sulphur) Mayfly Dun

View 4 PicturesThis is my favorite mayfly from 2004, and it appears on my popular Be the Trout: Eat Mayflies products. Check them out!

Its identification is really up in the air. It might be a late-season vitreus dun but it may very well be one of the more obscure species in that genus.

Collected September 2, 2004 from the Beaverkill River in New York
Added to Troutnut.com by Troutnut on January 25, 2006

Taeniopteryx nivalis (Early Black Stonefly) Stonefly Nymph

View 2 PicturesI found this nymph wriggling in the surface film during a hatch of related Strophopteryx adults. This nymph died in transport so it's not alive in the photos, but it's pretty close to its live colors.

Collected March 18, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Calopteryx Damselfly Nymph

View 2 Pictures

Collected March 1, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Specimen Page:1...484950...124

Jargon Defined:

Dun: Mayflies have two adult stages. They first emerge from the water as duns (scientifically known as the subimago stage). They then molt into the spinner (imago) stage, in which they mate and die. Sometimes the word "dun" is confusingly used to refer to a brownish gray color in fly tying materials.

Nymph: The juvenile, underwater stages of mayflies, stoneflies, dragonflies, and damselflies and other aquatic insects whose juvenile stages are covered by hard exoskeletons. The word can also refer to the fishing flies which imitate these creatures, in which case it is used as a blanket term for flies imitating any underwater stage of an invertebrate (except for crayfish and leeches).