Caddisflies, Stoneflies, and Related Insects

Orders Trichoptera (Caddisflies) and Plecoptera (Stoneflies)

Caddisflies resemble moths as adults and Stonefly larvae are called niads.
Many caddisflies are sensitive to low levels of pollution and are among the species used to monitor the health of rivers, streams, and lakes.

Giant Red Sedge Caddisfly

Northern Caddisfly

Northern Caddisfly

Long-horned Caddisfly

Caddisfly

Stonefly