Primitive Caddisflies (Rhyacophilidae) is a biological family of the class Insecta (Insects) and order Trichoptera (Caddisflies).
Philopotamidae
Phryganeidae
Leptoceridae
Hydroptilidae
Hydropsychidae
Limnephilidae
Rhyacophilidae
Helicopsychidae
Psychomyiidae