Lackawanna River Corridor Association Lackawanna River Caddisflies Order: Trichoptera Key features "worm-like" appearance 3 pairs of legs near the head -small tail hooks for attachment to rocks size range: 1/4-3/4" may be found in case

 Caddisfly larvae can often be found on the undersides of stones protected by a collection of small pieces of stone, shells, or plant material which is held together by an adhesive substance that caddisfly larvae secrete. They may also be found in cases, which they make from small stones or plant material.

  Caddisflies are common throughout all reaches of the Lackawanna River. Organisms of the Hydropsychidae family, Hydropsyche and Cheumatopsyche, are relatively pollution tolerant and often dominate the macroinvertebrate community throughout the River. The remaining pictured caddisflies are pollution sensitive and are generally found within upper reaches of the River, downstream through the Mid Valley.

	Family: Hydropsychidae Genus: Hydropsyche
	Family: Hydropsychidae Genus: Cheumatopsyche
	Family: Rhyacophilidae Genus: Rhyacophila (early instar)
	Family: Rhyacophilidae Genus: Rhyacophila (late instar)
	Family: Glossosomatidae Genus: Glossosoma
	Family: Brachycentridae Genus: Brachycentrus
	Family: Brachycentridae Genus: Micrasema
	Family: Polycentropodidae Genus: Polycentropus
	Family: Philopotamidae Genus: Chimarra
	Family: Philopotamidae Genus: Dolophilodes
	Family: Odontoceridae Genus: Marilia
	Stone Case