Troutnut.com Fly Fishing for Trout Home
User Password
or register.
Scientific name search:

Insect Order Trichoptera (Caddisflies)



Pictures Below ↓

This is page 9 of specimens of Trichoptera. Visit the main Trichoptera page for:

  • The behavior and habitat of Trichoptera.
  • 55 underwater pictures of Trichoptera.

Pictures of 129 Caddisfly Specimens:

Specimen Page:1...8910...14
Apatania (Early Smoky Wing Sedges) Caddisfly NymphApatania (Early Smoky Wing Sedges) Caddisfly Nymph View 1 Pictures
Collected April 15, 2010 from the Jocko River in Montana
Added to Troutnut.com by Bnewell on June 27, 2011
Hydroptila (Varicolored Microcaddisflies) Caddisfly NymphHydroptila (Varicolored Microcaddisflies) Caddisfly Nymph View 1 Pictures
Collected April 8, 2005 from the Flathead River-Upper in Montana
Added to Troutnut.com by Bnewell on June 27, 2011
Lepidostoma (Little Brown Sedges) Little Brown Sedge LarvaLepidostoma (Little Brown Sedges) Little Brown Sedge Larva View 12 Pictures
Collected July 28, 2019 from Mystery Creek #199 in Washington
Added to Troutnut.com by Troutnut on July 30, 2019
Oecetis avara (Tan Spotted-Wing Long-Horned Sedge) Caddisfly AdultOecetis avara (Tan Spotted-Wing Long-Horned Sedge) Caddisfly Adult View 1 Pictures
Collected July 10, 2005 from the Flathead River-lower in Montana
Added to Troutnut.com by Bnewell on June 30, 2011
Dolophilodes (Medium Evening Sedges) Caddisfly LarvaDolophilodes (Medium Evening Sedges) Caddisfly Larva View 9 PicturesI think this larva best fits Dolophilodes, in which the anterior (Anterior: Toward the front of an organism's body. The phrase "anterior to" means "in front of.") margin of the frontoclypeus is supposed to be "slightly asymmetrical." I can't confidently make out the asymmetry, but the other genera are supposed to have either greater asymmetry or a symmetrical, but convex, shape, whereas this one is clearly concave.

Based on distribution records, the species should be either aequalis, dorcus, or pallidipes, but I can't find any source to distinguish between them.
Collected August 3, 2020 from the East Fork Big Lost River in Idaho
Added to Troutnut.com by Troutnut on August 19, 2020
Mystacides alafimbriata (Black Wing Long-Horned Sedge) Caddisfly AdultMystacides alafimbriata (Black Wing Long-Horned Sedge) Caddisfly Adult View 1 Pictures
Collected June 25, 2005 from Ninepipes Reservoir in Montana
Added to Troutnut.com by Bnewell on June 30, 2011
Lepidostoma podagrum (Little Brown Sedge) Little Brown Sedge LarvaLepidostoma podagrum (Little Brown Sedge) Little Brown Sedge Larva View 1 PicturesThis egg packet was dropped from the specimen with the severely foreshortened abdomen in the other photo series. It's amazing how much abdominal length is given up in this process. The egg packet looked black in the hand.
Collected May 12, 2011 from the Fall River in California
Added to Troutnut.com by Entoman on December 14, 2011
Male Onocosmoecus unicolor (Great Late-Summer Sedge) Caddisfly AdultMale Onocosmoecus unicolor (Great Late-Summer Sedge) Caddisfly Adult View 15 PicturesI first just assumed this was Dicosmoecus based on anglers' conventional wisdom since it's a large orange "October caddis," but Creno set me straight. I should have keyed it out. After another look under the microscope, it lacks an anepisternal wart on the mesopleuron (Mesopleuron: The side of the insect mesothorax, and the part to which the fore wings are attached in mayflies.), which rules out Dicosmoecus. The midtibiae have 2 apical (Apical: Close to the apex; tip or end.) spurs and 1 pre-apical (Apical: Close to the apex; tip or end.) spur, and from there the color pattern of the wing points to Onocosmoecus. The location then narrows the species to unicolor.
Collected September 17, 2020 from the Yakima River in Washington
Added to Troutnut.com by Troutnut on September 19, 2020
Hydropsyche (Spotted Sedges) Caddisfly AdultHydropsyche (Spotted Sedges) Caddisfly Adult View 11 PicturesI haven't keyed this specimen out, but I am instead placing it in Hydropsyche based on the striking visual similarity to this one, which I did key out.

Collected June 30, 2019 from the Madison River in Montana
Added to Troutnut.com by Troutnut on July 17, 2019
Limnephilus externus (Summer Flier Sedge) Caddisfly NymphLimnephilus externus (Summer Flier Sedge) Caddisfly Nymph View 1 PicturesThis caddis is one of the most abundant caddisflies in temporary ponds of Glacier Park. The larvae build a round case of detritus (Detritus: Small, loose pieces of decaying organic matter underwater.) and dead plant material that can get quite large.
Collected June 25, 2008 from Temporary ponds- Glacier Nat. Park in Alaska
Added to Troutnut.com by Bnewell on June 26, 2011
Specimen Page:1...8910...14
Top 10 Fly Hatches
BaetisBaetidaeEphemerellidaeHexagenia limbataChironomidaeEphemerella subvariaHeptageniidaeEphemerellaIsonychiaHydropsychidae
Top Gift Shop Designs
I outfish my daddy!Electric blue Hendrickson dun.I love buggers. Big, green, wooly ones.I outfish my husband!Be the trout.
Eat mayflies.
Top Insect Specimens
Baetisca obesa Mayfly NymphNeophylax Caddisfly AdultBaetis Mayfly DunCorydalus Hellgrammite LarvaIsonychia bicolor Mayfly Spinner
Miscellaneous Sites
Dalton Highway (Haul Road) Corridor Map