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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 Troutnut.com by Troutnut on July 18, 2019
Male Leptoceridae Caddisfly AdultMale Leptoceridae Caddisfly Adult View 6 Pictures
Collected June 30, 2019 from the Madison River in Montana
Added to Troutnut.com by Troutnut on July 17, 2019
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 Troutnut.com by Troutnut on April 2, 2007
Mystacides sepulchralis (Black Dancer) Caddisfly AdultMystacides sepulchralis (Black Dancer) Caddisfly Adult View 4 Pictures
Collected September 5, 2006 from the Neversink River in New York
Added to Troutnut.com by Troutnut on October 3, 2006
Limnephilidae (Northern Caddisflies) Caddisfly LarvaLimnephilidae (Northern Caddisflies) Caddisfly Larva View 15 Pictures
Collected June 13, 2019 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on June 15, 2019
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 Troutnut.com by Troutnut on August 17, 2020
Helicopsyche borealis (Speckled Peter) Caddisfly PupaHelicopsyche borealis (Speckled Peter) Caddisfly Pupa View 13 PicturesI'm calling this one very tentatively Helicopsyche borealis, with some big caveats that I might be wrong.

It seems to key fairly easily to Helicopsychidae, except at the last couplet in Merritt & Cummins (5th ed) it's supposed to have “anal processes short and straight, each with several mesal (Mesal: Toward the middle.) setae (Seta: Little hairs on insects.) and 2 long apical (Apical: Close to the apex; tip or end.) setae (Seta: Little hairs on insects.),” whereas this one has VERY short, straight processes with 3 long apical (Apical: Close to the apex; tip or end.) setae (Seta: Little hairs on insects.) and no mesal (Mesal: Toward the middle.) ones.

Additionally, the only species of Helicopsychidae documented in this region is Helicopsyche borealis, which is supposed to emerge much later in the summer.
Collected April 9, 2021 from the Yakima River in Washington
Added to Troutnut.com by Troutnut on April 12, 2021
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 Troutnut.com 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 Troutnut.com by Troutnut on May 18, 2007
Hydropsychidae Caddisfly LarvaHydropsychidae Caddisfly Larva View 4 PicturesEvery picture of this Hydropsychidae larva was taken with my old C740UZ through a microscope.
Collected November 15, 2004 from Fall Creek in New York
Added to Troutnut.com by Troutnut on April 12, 2006
Specimen Page:1...101112...14
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