Figure 8.

Schematic of (A) Gustatory sensillum: A gustatory sensillum consists of accessory cells, gustatory receptor neurons (GRNs), mechanosensory neuron, and a terminal pore for the entry of tastants molecules; (B) Distribution of gustatory sensilla on D. melanogaster’s body: The gustatory sensilla in fruit flies are scattered on the proboscis, ovipositor, wing margins, and legs; (C) Types of gustatory sensilla: The gustatory sensilla, based on their length, are of three types, namely long-type (L-type), intermediate-type (I-type), and small-type (S-type). (Modified from [70,172]).