Abstract:

The isozymes of C_x-Cellulase from the alimentary canals of 18 species of female adults, 12 species of larvae of longicorn beetles representing two sub-families(Lamiinae, Cerambycidae)were investigated with isoelectricfocusing polyacrylamide gel electrophoresis method.Difference of isoenzymes among subfamilies and tribes are more conspicuous than that among genera, there are no any similar zymogram bands possessed by subfamilies or by tribes, Certain zymogram bands possessed in common by some genera, and also among the different species of the same genus, and there are usually some specificbands existed in different species.Moreover, according to the degree of diversity or similarity of C_x-Cellulase isozymes, it would be more reasonable to restore the genera Linda, Oberea and Phytoecia into tribe Phytoecini, and the genus Paraglenca into tribe Gleneini rather than to treat them as a single tribe Saperdini as in Breuning' Revision.

Key words: C_x-Cellulase, Isozymes, Cerambycidae