Nerve leading to antenna -i 

 Esophagus — -\ 

 Hypopharynx - 



Labrum — r 



Mandible 



Subesophageal ganglion- -~^H 



Salivary glands _ _/#-J 



Antenna 



Supraesophageal 

 ganglion 



- Thoracic air sac 

 Gastric cseca 



Gastric 

 cxca 



Thorax 



First abdominal 

 ganglion 



Femur of third pair of legs 



Malpighian tubes 1 



^v-X- -^ - _ Abdominal 



Oviduct 



First joint- 



of tarsus jn Cement 



®pt/ gland - - 



Ovipositor 



Claw — ^ 



51 -A m i opening 



% ^-Ovipositor 



l Opening of oviduct 



Fig. 3. Dissection of the common red-legged grasshopper (Melanoplus 



femur-rubrum) . (x 4) 



