Insect Order Trichoptera (Caddisflies)
Taxonomic Navigation -?-
Kingdom Animalia (Animals)
» Phylum Arthropoda (Arthropods)
» Class Insecta (Insects)
» Order Trichoptera (Caddisflies)
5 families aren't included.
Common Name
| Match | Common Name |
| Caddisflies |
Fly Imitations by Orvis
| Stage | Fly Pattern |
| Larva | Case Caddis |
| Larva | Czech Mate |
| Emerger | SparkleWing Caddis Emerger |
| Pupa | LaFontaine Sparkle Pupa |
| Adult | Elk Wing Caddis |
This is page 2 of underwater photos of Trichoptera. Visit the main Trichoptera page for:
- The behavior and habitat of Trichoptera.
- Studio pictures of 66 Trichoptera specimens.
- 9 streamside pictures of Trichoptera.
54 Underwater Pictures of Caddisflies:

This picture from below shows a stillborn (Stillborn: In fly fishing, a stillborn insect is one which got stuck in its nymphal or pupal shuck during emergence and floats helplessly on the surface instead of flying away. It is a specific class of cripple, although it is sometimes used interchangeably with that term.) Ephemerella subvaria (Hendrickson) dun drifting on the surface amidst a number of shed pupal skins from Brachycentrus caddisflies which were heavily hatching that day.
In this picture: Mayfly Species Ephemerella subvaria (Hendrickson) and Caddisfly Species Brachycentrus appalachia (Apple Caddis).
In this picture: Mayfly Species Ephemerella subvaria (Hendrickson) and Caddisfly Species Brachycentrus appalachia (Apple Caddis).

The large caddisfly case (really less than 1/2 inch) is a Brachycentridae larva. The other cases are actually the protective sheaths of black fly (Simuliidae) pupae. The two antler-like pieces sticking out of each one are not legs, but antennal sheaths.
In this picture: True Fly Family Simuliidae (Black Flies) and Caddisfly Family Brachycentridae (Apple Caddis and Grannoms).
In this picture: True Fly Family Simuliidae (Black Flies) and Caddisfly Family Brachycentridae (Apple Caddis and Grannoms).

A Brachycentrus "Apple Caddis" pupa scoots around in the surface film. Apparently it had some difficulty emerging, so I was able to slip my camera underneath it and take a picture from below.
In this picture: Caddisfly Species Brachycentrus appalachia (Apple Caddis).
In this picture: Caddisfly Species Brachycentrus appalachia (Apple Caddis).

Three big Ephemerella subvaria mayfly nymphs share a rock with some cased caddis larvae.
In this picture: Caddisfly Genus Glossosoma (Little Black Short-Horned Sedges) and Mayfly Species Ephemerella subvaria (Hendrickson).
In this picture: Caddisfly Genus Glossosoma (Little Black Short-Horned Sedges) and Mayfly Species Ephemerella subvaria (Hendrickson).

Cased caddis larvae blanket this section of stream bottom.
In this picture: Insect Order Trichoptera (Caddisflies).
In this picture: Insect Order Trichoptera (Caddisflies).

The white blotches on this rock are Leucotrichia caddisfly cases, and the wispy tubes are cases made by a type of midge.
In this picture: Caddisfly Species Leucotrichia pictipes (Ring Horn Microcaddis), Mayfly Species Ephemerella invaria (Sulphur), and True Fly Family Chironomidae (Midges).
In this picture: Caddisfly Species Leucotrichia pictipes (Ring Horn Microcaddis), Mayfly Species Ephemerella invaria (Sulphur), and True Fly Family Chironomidae (Midges).



This Brachycentrus "Apple Caddis" struggled more than its kin in escaping its pupal skin, enabling me to take an underwater picture of it from directly below. This is sort of a trout's eye view, but I used the flash for the picture so the transparent shuck (
Shuck: The shed exoskeleton left over when an insect molts into its next stage or instar. Most often it describes the last nymphal or pupal skin exited during emergence into a winged adult.) appears far brighter than it really is.
In this picture: Caddisfly Species Brachycentrus appalachia (Apple Caddis).

Here's an underwater view of the pupal shucks of several already-emerged Brachycentrus numerosus caddisflies.
In this picture: Caddisfly Species Brachycentrus appalachia (Apple Caddis).

The strange tubes all over this rock house tiny midge larvae.
In this picture: True Fly Family Chironomidae (Midges), Insect Order Ephemeroptera (Mayflies), and Insect Order Trichoptera (Caddisflies).
In this picture: True Fly Family Chironomidae (Midges), Insect Order Ephemeroptera (Mayflies), and Insect Order Trichoptera (Caddisflies).

