Hydropsyche quitchupaha, n. sp., is described and illustrated based on 3 males collected in Sevier, Emery, and Kane counties, Utah. The upturned posteromesal lobes of tergum X, subapically swollen phallobase, and dorsally depressed phallus apex separate this species from all other members of the Hydropsyche scalaris Group.
Korecki, James A. and Ruiter, David E.
"A new species of Hydropsyche (Trichoptera: Hydropsychidae) from Utah,"
Western North American Naturalist: Vol. 69
, Article 2.
Available at: http://scholarsarchive.byu.edu/wnan/vol69/iss3/2