Geographical Studies on Cheumatopsyche infascia (Trichoptera, Hydropsychinae) by Esterase Isozymes

Abstract

Geographic variation of esterase isozymes (Est-Fi locus) in Cheumatopsyche infascia (Trichoptera, Hydropsychinae) was studied using polyacrylamide gel electrophoresis. Specimens were collected from ten localities in the Japanese Archipelago. Geographic variation of the esterase pattern was only observed between Honshu Is. and Hokkaido Is. We considered that the result of this study stems the history of this species in the Japanese Archipelago.