Western records for 27 species of Trichoptera are given; a majority of the records are from the Beartooth Mountains of northwestern Wyoming. In addition, examples of variation in the male genitilia of Limnephilus coloradensis (Banks) are figured and the female is described. Some comments regarding the larvae of Allomyia (Imania) are presented.
Swegman, Bernard G. and Ferrington, Leonard C. Jr.
"New records of western Trichoptera with notes on their biology,"
Great Basin Naturalist: Vol. 40
, Article 11.
Available at: http://scholarsarchive.byu.edu/gbn/vol40/iss3/11