The last part of grasshopper’s body is called abdomen. It is long, narrow, soft and scaly. Its abdomen is made up of 11 segments. On the surface of the abdomen is the targum and on the phalanges is the sternum. But there are not so many pleurons. Its first fragment is incomplete. It contains only the targum. Abdominal organs are:
(i) Tympanum: The first abdominal segment contains the auditory sac or tympanum. There is an oval tympanic membrane surrounding the eardrum.
(ii) Spiracle: There are 8 pairs of spiracles in each segment from the first to the eighth segment of the abdomen. Air enters the body through it.
(iii) Anus and Genitals: The ninth segment of the male has the subgenital plate, the 10th segment has the anal sac and the 11th supra-anal plate and anus. But there is no anal style. The 11th abdominal segment contains the anus and the anal plate. Female grasshopper- ninth segment contains egg-laying organ ovipositor. The ovipositor is composed of 4 smooth lobes. Dr. Siddiq Publications