Title: A manual for the identification of the larvae of the caddisfly genera Hydropsyche pictet and Symphitopsyche ulmer in eastern and central North America (Trichoptera: hydropsychidae)
Subjects: Caddisflies, Handbooks, manuals, Insects, Larvae, Insectes, Larves, Phryganes, Guides, manuels
Places: North America, Amérique du Nord