TRANSFORMATIONS OF INSECTS. 
26 
DIGESTIVE APPARATUS OF AN 
HERBIVOROUS INSECT. 
THE GREEN GRASSHOPPER 
(Locusta viridissima). 
DIGESTIVE APPARATUS OF A 
CARNIVOROUS INSECT. 
THE WATER BEETLE 
(Dytiscus marginalis). 
a (Esophagus. b Crop, c Gizzard, d Stomach, e Small intestine. f Large 
intestine, g Salivary glands, h Biliary and urinary canals. 
