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Insect Order Trichoptera (Caddisflies)

Pictures Below ↓

This is page 3 of specimens of Trichoptera. Visit the main Trichoptera page for:

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

Pictures of 92 Caddisfly Specimens:

Specimen Page:1234...10
Hydropsyche (Spotted Sedges) Caddisfly PupaHydropsyche (Spotted Sedges) Caddisfly Pupa View 8 PicturesSeveral users have interesting comments in the discussion of this specimen, but this observation by Creno is especially good:

Also, this is what I would call an "immature" pupa. The wingpads of caddis pupae darken to nearly black as the enclosed adults near emerging. The darkening is the developing adult wing inside the pupal wing pad (
The wing pads on this final instar Baetidae mayfly nymph are extremely dark.
The wing pads on this final instar Baetidae mayfly nymph are extremely dark.
Wing pad: A protrusion from the thorax of an insect nymph which holds the developing wings. Black wing pads usually indicate that the nymph is nearly ready to emerge into an adult.). The ultimate coloration of the adult wing is not very apparent in most pupal wing pads (
The wing pads on this final instar Baetidae mayfly nymph are extremely dark.
The wing pads on this final instar Baetidae mayfly nymph are extremely dark.
Wing pad: A protrusion from the thorax of an insect nymph which holds the developing wings. Black wing pads usually indicate that the nymph is nearly ready to emerge into an adult.) as the majority of the adult wing coloration comes from the color/position of the adult wing hairs and setae (Seta: Little hairs on insects.). But dark pupal wingpads are a good indication that the emergence will occur very soon, likely that day or so, and that the adult parts are sufficiently developed within the pupae to make a species determination from the specimen, particularly if it is a male.
Collected May 13, 2007 from the Delaware River in New York
Added to Troutnut.com by Troutnut on May 18, 2007
Male Psilotreta labida (Dark Blue Sedge) Caddisfly AdultMale Psilotreta labida (Dark Blue Sedge) Caddisfly Adult View 11 Pictures
Collected June 1, 2007 from the West Branch of the Delaware River in New York
Added to Troutnut.com by Troutnut on June 4, 2007
Female Rhyacophila (Green Sedges) Caddisfly AdultFemale Rhyacophila (Green Sedges) Caddisfly Adult View 3 Pictures
Collected April 30, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Brachycentrus (Grannoms) Caddisfly PupaBrachycentrus (Grannoms) Caddisfly Pupa View 10 PicturesThe green blob contained in this case is a pupa in the early stages of transformation from larva to the final stage we generally picture and imitate. This specimen and several like it were fixed to a rock I picked up, and each one had the front of its case sealed off, protecting the helpless pupa from predation. It's neat to see the insect part-way through such a radical transformation.

It was very hard to extract this thing from its case, so there's a bit of extra goo near the head from where I accidentally punctured it.
Collected April 14, 2007 from Cayuta Creek in New York
Added to Troutnut.com by Troutnut on April 22, 2007
Cheumatopsyche (Little Sister Sedges) Caddisfly AdultCheumatopsyche (Little Sister Sedges) Caddisfly Adult View 9 Pictures
Collected September 19, 2006 from Mystery Creek #43 in New York
Added to Troutnut.com by Troutnut on October 4, 2006
Lepidostoma (Little Brown Sedges) Little Brown Sedge LarvaLepidostoma (Little Brown Sedges) Little Brown Sedge Larva View 6 Pictures
Collected May 13, 2007 from the Delaware River in New York
Added to Troutnut.com by Troutnut on May 18, 2007
Hydropsychidae Caddisfly LarvaHydropsychidae Caddisfly Larva View 2 Pictures
Collected March 13, 2005 from Cascadilla Creek in New York
Added to Troutnut.com by Troutnut on April 5, 2006
Triaenodes Caddisfly AdultTriaenodes Caddisfly Adult View 4 Pictures
Collected August 7, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Female Lepidostoma podagrum (Little Brown Sedge) Little Brown Sedge AdultFemale Lepidostoma podagrum (Little Brown Sedge) Little Brown Sedge Adult View 3 PicturesThese specimens are still alive, just very cold, so the colors are accurate. I put them in the freezer for a bit to settle them down and overdid it a little:)
Collected May 12, 2011 from the Fall River in California
Added to Troutnut.com by Entoman on December 14, 2011
Apatania (Early Smoky Wing Sedges) Caddisfly AdultApatania (Early Smoky Wing Sedges) Caddisfly Adult View 7 PicturesThis one actually had a medium tan body when it emerged. By the time I took the picture it was dark as night. I was actually looking through my box of specimens trying to figure out where that tan one I caught disappeared to. Then I realized this is it.
Collected May 15, 2007 from the West Branch of the Delaware River in New York
Added to Troutnut.com by Troutnut on May 18, 2007
Specimen Page:1234...10
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