雏蝗属五种蝗虫雄性外生殖器的比较(直翅目:网翅蝗科)

Comparisons on the male external genitalia of five species grasshoppers of the genus Chorthippus (Orthoptera:Arcypteridae)

利用显微观察并描述了直翅目网翅蝗科雏蝗属青藏雏蝗Chorthippusqingzangensis、小翅雏蝗C.fallax、东方雏蝗C.intermedius、红胫雏蝗C.rufitibis、白纹雏蝗C.albonemus共五种雏蝗雄性外生殖器的形态特征。结果表明:五种雏蝗雄性外生殖器发生变化最为明显的部位是冠突、前突、侧板、桥和色带连片及阳茎基瓣,在种间存在明显差异。通过对雄性外生殖器的形态结构比较,在探讨蝗总科分类和系统发育上均具有重要意义,并为雏蝗属种类鉴定提供了新的分类依据。

The morphological character of the male external genitalia of five species of the genus Chorthippus (Orthoptera:Arcypteridae):C. qingzangensis Yin,C.fallax(Zubovsky),C.intermedius (B.-Bienko),C.rufitibis Zheng,C.albonemus Cheng et Tu were observed and described by using microscope.The results of morphological anatomy show the lophis,anterior projections,lateral plate,bridges and zygoma,basal valves of penis of the male external genitalia are variable distinctly to different species,these characters of five species were significantly different.According to the results of comparing the differences in morphological structures of male external genitalias,it is important for the taxonomic and phylogenetic study of Acridoidea.The results revealed that the male genitalia of Chorthippus could be used as a criterion for the identification.