The sense organs on the mouth parts of the Desert locust (Schistocerca gregaria)



The “hairs” and various types of sensilla present on the mouth parts of Schistocerca gregaria are described. The distribution of the sensilla on the clypeo-labrum, labium and theHmaxillae has been plotted in detail, and the general distribution of all types of sensilla on each of the mouth parts is described.

A comparison is made between the distribution of certain sensilla on the clypeo-labrum in first instars and adults.

The probable role of the sensilla in feeding is discussed.