Mayflies (Insecta: Ephemeroptera) of Yellowstone National Park, U.S.A.

Abstract

The Ephemeroptera (Insecta) fauna ofYellowstone National Park consists of 46 speciesin 24 genera among eight families. These speciesare listed, and fifteen of the species (includingcollection data) are reported for the first time.Another 13 species have been taken adjacent tothe park in Wyoming and Montana and noted asexpected to occur in the park.