Antenna 

 Ocellus 



Labrum 



Mandible 



Mouth 



Hypopharynx 



Circumesophageal connective 



Labium 



Subesophageal ganglion 



Salivary duct 

 Crop 



Salivary gland 



Third thoracic ganglion 

 Ventral nerve cord 



First abdominal ganglion 

 Gastric cecum 



Stomach 



Malpighian tubules 



leum 



Oviduct 



Vagina 



Seminal receptacle 



Genital opening 



Ovipositor 



Optic lobe 



Supraesophageal 



ganglion 



brain" 



Esophagus 

 Muscle 



Aorta 



Ovarian 

 tubule 



Ovary 



Heart 



Colon 



— Rectum 



Anus 



Figure 136. Internal organs of a grasshopper as seen with the left side of the body wall 

 removed; tracheae not included. 



236 



