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) / by Guenter A. Schuster, State Biological Survey of Kansas, and David A. Etnier, Dept. of Zoology, University of Tennessee.
| Author/creator | Schuster, Guenter A. |
| Format | Book |
| Publication Info | Cincinnati, Ohio : Environmental Protection Agency, Office of Research and Development, Environmental Monitoring and Support Laboratory ; Springfield, Va. : For sale by the National Technical Information Service, 1978. |
| Description | xii, 129 pages : illustrations ; 29 cm. |
| Subjects |