Submitted to: Proceedings of the Entomological Society of Washington
Publication Type: Peer reviewed journal
Publication Acceptance Date: 12/15/2005
Publication Date: 1/5/2006
Citation: Zack, R.S., Ruiter, D.E., Strenge, D.L., Landolt, P.J. 2006. Adult caddisfly (Trichoptera) phenology at the Hanford Reach National Monument, Washington State. Proceedings of the Entomological Society of Washington. 108(1): 131-138. Interpretive Summary: New approaches to control insect pests of vegetable crops need to be compatible with the environment. Assemblages of insects in natural areas support parasites and predators of pest insects, and serve as indicators of environmental health. Researchers at the USDA-ARS laboratory in Wapato, Washington, collaborated with scientists in the Department of Entomology, Washington State University, Pullman, WA to develop a data base for caddisfly species in a native Steppe ecosystem at the Hanford Reach National Monument in Washington. A diverse fauna of 33 species was documented, and their association with springs, seasonal streams, agricultural irrigation runoff, and the Columbia River were documented. This information provides a baseline for future reference to document the health of this group of environmentally sensitive insects.
Technical Abstract: Adult caddisflies were sampled on the Wahluke Wildlife Area and Saddle Mountain National Wildlife Refuge subunits of the newly created (2000) Hanford Reach National Monument using 15-watt “black lights” from April 2002 through April 2003. A diverse faunal consisting of nine families, 21 genera, and 33 species were collected. Protoptila coloma Ross, Agraylea multipunctata Curtis, Hydroptila xera Ross, Ceraclea alagma (Ross), Nectopsyche lahontanensis Haddock, Oecetis cinerascens (Hagen), and Ylodes reuteri (MacLachlan) represent new records for Washington State. Species composition and phenology are presented in tabular form.