中文摘要：

采用扫描仪和扫描电镜对红腹牧草蝗Omocestus haemorrhoidalis（Charp.）消化道内壁的细微结构进行了观察,结果表明：食道内壁前端有齿.嗉囊包括两部分,前端的一个小的膨大部分,由V-形区和两侧的V-形脊组成;后端为一个大的膨大部分,由柳叶脊、扇形脊和不规则脊组成;脊的上缘有齿.前肠内壁主要为单生齿,除贲门瓣上齿的齿尖指向前方外,全部齿尖指向后方.后肠的齿主要分布于幽门瓣、结肠和除直肠垫外的直肠内壁.后肠的齿主要为丛生齿,除直肠内壁齿的齿尖指向附着环外,全部齿尖指向后方.回肠和直肠垫无齿,其内壁特化成筛网状结构.肛门区的内壁布满了圆球形凸起.

英文摘要：

The tiny structure of Omocestus haemorrhoidalis（Charp.） alimentary canal was observed and analyzed by using scanner in positioning scanning electron microscope.The results show that the inner walls of the esophagus consist of longitudinal ridges,with teeth at the front tip.The crop is composed of two parts：The one at the front has a small bulge,which is formed by V-shape belt and the V-shape ridges on either side of the belt.Teeth are seen only at the front tip of the inner walls.The rear part of the crop has a big bulge,which is composed of the lance ridges,fan-shape ridges and irregular ridges.On the top part of the ridges are there the teeth.The teeth in the inner walls of the foregut are mainly single teeth.All the teeth point to the back except the ones on the stomodaeal valves,which point to the front.On the front part of the proctodaeum is 12 pyloric valves,with teeth on the inner walls.The ileum and colon are composed of six longitudinal ridges,with teeth on the inner walls of the colon.There are teeth on the inner walls of the rectum except the rectal pad.The teeth of the proctodaeum are manly tufted teeth,all pointing to the back except the ones in the inner walls of the rectum,which point to the attachment ring.The authors have observed and studied systematically on the inner structure of the alimentary canal of O.haemorrhoidalis,which provides important data and information to the grasshopper morphology and taxonomy.