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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 110 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...109110111...124

Female Rhithrogena virilis Mayfly Dun

View 6 PicturesI'm guessing this one is Rhithrogena virilis based on collection of a male spinner of similar size and body configuration during the same trip.

Collected June 16, 2018 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on June 23, 2018

Male Hydropsyche (Spotted Sedges) Caddisfly Adult

View 5 PicturesThis was identified by Dave Ruiter as Hydropsyche californica or Hydropsyche occidentalis, but the characteristics were not clear enough to tell them apart.

Collected August 11, 2018 from the Henry's Fork of the Snake River in Idaho
Added to Troutnut.com by Troutnut on June 12, 2019

Atherix (Watersnipe Flies) True Fly Larva

View 8 Pictures

Collected July 2, 2019 from the Gallatin River in Montana
Added to Troutnut.com by Troutnut on July 18, 2019

Ephemerella excrucians (Pale Morning Dun) Mayfly Nymph

View 6 Pictures

Collected July 6, 2020 from the Dosewallips River in Washington
Added to Troutnut.com by Troutnut on July 12, 2020

Female Baetidae (Blue-Winged Olives) Mayfly Dun

View 2 Pictures

Collected May 23, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Female Ephemerella dorothea infrequens (Pale Morning Dun) Mayfly Spinner

View 9 PicturesI'm calling this one Ephemerella dorothea infrequens because it was collected along with two males that positively ID to that species.

Collected July 1, 2019 from the Madison River in Montana
Added to Troutnut.com by Troutnut on July 18, 2019

Coleoptera (Beetles) Beetle Larva

View 3 Pictures

Collected July 25, 2019 from Mystery Creek #249 in Washington
Added to Troutnut.com by Troutnut on July 27, 2019

Male Siphlonurus occidentalis (Gray Drake) Mayfly Spinner

View 6 PicturesThis specimen was easy to key to species using the old keys in < id="115" />, and was the basis for IDs of several other Siphlonurus specimens of the same species collected on the same day.

Collected July 31, 2020 from the Henry's Fork of the Snake River in Idaho
Added to Troutnut.com by Troutnut on August 16, 2020

Baetidae (Blue-Winged Olives) Mayfly Nymph

View 3 PicturesHere's a Baetid nymph close to hatching, with darkened wingpads. It's got dark bands on the tail at the middle and tip, a rounded, oval 7th gill, and gill veinlets (Veinlet: Short insect wing veins connecting the major longitudinal veins to the wing margin.) which are visible but not conspicuous.

Collected August 8, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Male Cinygmula par Mayfly Spinner

View 9 PicturesThis spinner came from one of those huge swarms that make one just stop fishing and admire the spectacle. Not bad for a little-known species.

In the same swarm I collected a female and another male.

Collected July 4, 2020 from Mystery Creek #249 in Washington
Added to Troutnut.com by Troutnut on July 12, 2020

Specimen Page:1...109110111...124

Jargon Defined:

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).

Spinner: There are two winged stages of adult mayflies. They emerge from the water as duns, molt on land (usually) into their fully mature stage, spinners. As spinners, they mate, lay eggs, and die.

Veinlets: Short insect wing veins connecting the major longitudinal veins to the wing margin.