Caddisflies

Caddisfly larva Photographers - John Gooderham and Edward Tsyrlin

Trichoptera

The aquatic larvae of caddisflies are often enclosed within a protective case made from sand grains or plant matter bound together with silken thread.

Some types have larvae without cases and are usually found within a silken retreat while others are free-living.

Adult Caddisfies resemble small dark moths, and fly near waterbodies.