Modification of the digestive system of insects.
Modification of digestive enzymes found in insects according to the feeding habit.
– A generalized or unspecialized condition as in caterpillars where the foregut leads into the midgut and hindgut.
– The foregut with a crop in the 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, the midgut is more elongated anthe d hindgut with real glands. E.g. Diptera. Mosquito
– The midgut is very long and the digestive tract is adapted for the removal of excess water by the development of a filter chamber e.g. Homoptera.
