INTERNAL STRUCTURE. 



INTERNAL STRUCTURE. 



07 



Fig. 40.— Longitudinal section through a male grasshopper (Lociista viridis- 

 sima L.). — hi, occiput; sch, vertex; sti, frons. ol, labrum; k 3, labium; zu. Hgula; 

 schr, oesophagus; kr, crop; km, gizzard; le, caecal pouch; ed, colon; og, supra, and 

 ri^.sub or intra-cesophageal ganglion; bl, b2, 63, thoracic ganglion; ho, testes; dr, 

 glands of the same; pe, penis; /ml, /m 2, /m 3. muscles of the three parts of the thorax, 

 the latter two moving the wing-covers and wings. After Graber. 



