3.2.1 Mandible
The mandible sensors of adult G. cantor are relatively simple and highly ossified and are mainly used for feeding and making oviposition grooves. The lateral and medial sides of the palate have numerous receptive hair areas, with a small number of hair-shaped sensors type I (ST I) distributed on the outer side (Fig. 1), while the ventral and dorsal edges of the palate have sensilla chaetica (SCh) III in addition to ST I, and the dorsal surface has significantly more sensilla than the ventral surface (Fig. 2). Females have significantly more ST I and SCh III on their mandibles than males.