Modification of digestive system of insects.

Modification of digestive enzymes found in insect according to the feeding habit.

– A generalized or unspecialized condition as in caterpillars where the foregut leads into midgut and hindgut.

– The fore gut with a crop in case of most orthoptera (grasshoppers just to store the food.

– A diverticulum of the foregut for storage of food, but the midgut and hindgut are primitive. E.g. Lepidoptera.

– The foregut with a specialized diverticulum to store the food in this case midgut is more elongated and hindgut with real glands. E.g. Diptera. Mosquito

– The midgut is very long and digestive tract adapted for the removal of excess water by development of a filter chamber e.g. Homoptera.