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

Insect Order Trichoptera (Caddisflies)



Pictures Below ↓

This is page 10 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...91011...14
Hydropsyche (Spotted Sedges) Caddisfly LarvaHydropsyche (Spotted Sedges) Caddisfly Larva View 1 PicturesThis genus can get incredibly abundant especially below dams.This specimen shows the two sclerotized bars needed to identify it to genus. These usually curl up like this one when preserved.
Collected June 12, 2007 from the Flathead River-lower in Montana
Added to Troutnut.com by Bnewell on June 26, 2011
Male Cheumatopsyche (Little Sister Sedges) Caddisfly AdultMale Cheumatopsyche (Little Sister Sedges) Caddisfly Adult View 12 PicturesI didn't identify this one directly, but I eventually identified one of several I collected from the same swarms that appeared to be of the same species. (I lost track of which specimen was which in storage.) The microscope pictures come from one of these specimen, not necessarily the same specimen as the DSLR pictures. They key to Cheumatopsyche, and the hind wing venation (Venation: The pattern in which the veins on the wings of an insect are arranged. It is usually one of the most useful identifying characteristics.) that separates them from Hydropsyche is pretty clear in the attached picture as well as another specimen I checked under the scope.

This specimen was one of tens of thousands we saw on a July 1st evening on the Madison, beginning with big swarms around every vehicle and tree at the Eight Mile Ford access point and continuing all up and down the river bank. We somehow didn't catch any trout, perhaps because they were stuffed with pupae from when these things emerged. Or maybe we just weren't fishing well. Either way, this one represents a major hatch there.

I somehow forgot to photograph this important specimen against the hooks size chart, but fortunately I preserved a few. The body length is about 6 mm, and total length from head to wingtip is 9 mm.
Collected July 1, 2019 from the Madison River in Montana
Added to Troutnut.com by Troutnut on July 18, 2019
Rhyacophila (Green Sedges) Caddisfly LarvaRhyacophila (Green Sedges) Caddisfly Larva View 7 PicturesDave Ruiter identified this specimen as part of the Rhyacophila betteni group, but with over 20 species it's difficult to narrow down beyond that.
Collected July 25, 2019 from Mystery Creek #249 in Washington
Added to Troutnut.com by Troutnut on July 26, 2019
Female Grammotaulius lorettae (Northern Caddisfly) Caddisfly AdultFemale Grammotaulius lorettae (Northern Caddisfly) Caddisfly Adult View 8 Pictures
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
Male Glossosoma alascense Saddle-case Maker AdultMale Glossosoma alascense Saddle-case Maker Adult View 8 PicturesI lost track of this specimen before I could get it under my microscope, but caddis expert Dave Ruiter was able to identify it from pictures as Glossosoma, with an uncertain suggestion of G. alascense as the most likely species.
Collected July 9, 2019 from Rock Creek in Montana
Added to Troutnut.com by Troutnut on July 18, 2019
Rhyacophila (Green Sedges) Caddisfly LarvaRhyacophila (Green Sedges) Caddisfly Larva View 11 Pictures
Collected June 13, 2019 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on June 14, 2019
Male Lepidostoma (Little Brown Sedges) Little Brown Sedge AdultMale Lepidostoma (Little Brown Sedges) Little Brown Sedge Adult View 7 PicturesOn an evening filled with millions of caddisflies, this one stood out as the only one of its kind that found its way into my net. Dave Ruiter identified it from the photos as a Lepidostoma specimen in the pluviale species group.
Collected July 1, 2019 from the Madison River in Montana
Added to Troutnut.com by Troutnut on July 18, 2019
Male Leptoceridae Caddisfly AdultMale Leptoceridae Caddisfly Adult View 12 Pictures
Collected June 29, 2019 from the Madison River in Montana
Added to Troutnut.com by Troutnut on July 17, 2019
Male Hydropsyche occidentalis (Spotted Sedge) Caddisfly AdultMale Hydropsyche occidentalis (Spotted Sedge) Caddisfly Adult View 6 PicturesDave Ruiter identified this specimen from pictures as Hydropsyche occidentalis.

Collected June 30, 2019 from the Madison River in Montana
Added to Troutnut.com by Troutnut on July 17, 2019
Onocosmoecus unicolor (Great Late-Summer Sedge) Caddisfly AdultOnocosmoecus unicolor (Great Late-Summer Sedge) Caddisfly Adult View 11 PicturesOne key characteristic not clearly photographed, but clear in under the microscope: this specimen's midtibiae have 2 apical (Apical: Close to the apex; tip or end.) spurs and 1 preapical spur.
Collected August 4, 2020 from Trealtor Creek in Idaho
Added to Troutnut.com by Troutnut on August 20, 2020
Specimen Page:1...91011...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