锦天牛属阳茎内囊结构

ON ANATOMICAL STRUCTURE OF THE INTERNAL SAC OF AEDEAGUS IN GENUS ACALOLEPTA (COLEOPTERA:CERAMBYCIDAE)

采用显微解剖和冰冻组织切片方法研究锦天牛属Ａｃａｌｏｌｅｐｔａ三种天牛阳茎内囊的结构，发现内囊骨化结构物，尤其端部骨化结构物，及其控制内囊伸缩的加厚侧带和有聚集精子作用的射精管壶腹结构，在探讨天牛科分类和系统发育上均具有重要意义。

In this experiment,the microdissection and the freezing microtomy of the internal sac of aedeagus of longicorn beetles including 3 species belonging to Acalolepta were carried out. Detailed descriptions of the anatomical structure of the internal sac of aedeagus in different species, such as the type of bone valves and chitin area in the basical part, the form, number and distribution of spines (microtrichia)on the wall of the internal sac, and different shape of ejaculatory ampoule connected to the apical part of the internal sac etc, are given in this paper.It is supposed that the chitinization of the apical part of the internal sac, the lateral band of reinforcement contributing to copulation and the ejaculatory ampoule for recollecting sperms are important for the taxonomic and phylogenetic study of the longicorn beetles.