Abstract: This paper deals with the results of a comparative study on the male genitalia of 20 species of Meloidae from Xinjiang Uygur Automous Region. They may be summarized as follows: (1) The main components of the male genitalia are a phallobase and a median aedeagus, and the structures belong to the more variable, trilobatus type. (2) The morphlogical differences in genera, subgenera and species arenot only reflected in the characteristics of tergum IX and spiculum gastrale, which are associated with the genital musculature. (3) The characteristics of the male genitalia, like other external characters, can be used in identification and classification of the species.

Key words: Meloidae——male genitalia——classification