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Insect Order Trichoptera (Caddisflies)

Pictures Below

This is page 11 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...101112...14
Hydropsychidae Caddisfly AdultHydropsychidae  Caddisfly Adult View 8 Pictures
Collected July 8, 2019 from the Ruby River in Montana
Added to by Troutnut on July 18, 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 by Troutnut on August 20, 2020
Leptoceridae Caddisfly AdultLeptoceridae  Caddisfly Adult View 17 PicturesThis specimen keyed easily to Leptoceridae, but I hit a bit of a dead end in the genus key, because I can't seem to find the cross-veins in the wings that are supposed to help narrow it down. I took pictures of all the relevant features under the microscope; maybe somebody with more experience with the family can help.
Collected July 31, 2020 from the Henry's Fork of the Snake River in Idaho
Added to by Troutnut on August 17, 2020
Cheumatopsyche (Little Sister Sedges) Caddisfly PupaCheumatopsyche (Little Sister Sedges) Caddisfly Pupa View 3 PicturesI was surprised how bright green this pupa is. It's chartreuse. After collecting it, I experimented with melting down chartreuse jigs and making little translucent rubber caddis abdomens on my flies. They looked good, and the trout liked them, but they weren't very durable at all. This specimen is recently deceased in the photographs.
Collected May 18, 2004 from the Namekagon River in Wisconsin
Added to by Troutnut on January 25, 2006
Neophylax (Autumn Mottled Sedges) Caddisfly LarvaNeophylax (Autumn Mottled Sedges) Caddisfly Larva View 7 PicturesThe size of the head compared to the body in this larva is surprising, and I think this means it's a fairly 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.) of something which is going to get a lot bigger, but I'm not sure.
Collected May 6, 2007 from the Neversink River (above reservoir) in New York
Added to by Troutnut on May 10, 2007
Female Hydropsyche (Spotted Sedges) Caddisfly AdultFemale Hydropsyche (Spotted Sedges) Caddisfly Adult View 7 PicturesThis species was really common along the Henry's Fork at the end of July. I photographed it along with a male that appears to be the same species, and another male of the same genus but a seemingly different, less common (on this day) species.
Collected July 31, 2020 from the Henry's Fork of the Snake River in Idaho
Added to by Troutnut on August 17, 2020
Rhyacophila carolina (Green Sedge) Caddisfly LarvaRhyacophila carolina (Green Sedge) Caddisfly Larva View 8 PicturesThis specimens shows that the name "green rockworm" doesn't quite fit all Rhyacophila larvae, even though it does fit the majority. This is actually the first of their larvae that I've found in a different color. I'm not sure if it's because of the species or because this is a young one, but I have found equally small green larvae, so I'm guessing it's the species.
Collected May 6, 2007 from Mongaup Creek in New York
Added to by Troutnut on May 18, 2007
Rhyacophila mainensis (Green Sedge) Caddisfly LarvaRhyacophila mainensis (Green Sedge) Caddisfly Larva View 10 PicturesThis is the first Rhyacophila larva I've seen with this striking black banded appearance. I caught several larvae of this species in a fast riffle in a mid-sized trout stream.
Collected March 30, 2007 from Fall Creek in New York
Added to by Troutnut on April 2, 2007
Specimen Page:1...101112...14
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