Bioacoustics of Xestophrys bengalensis

Description: Male (Figures: 1A–B ): Smallest for the genus, robust. Fastigium of vertex ( Figure 2A ) elongate angular with obtusely rounded apex; slightly convex above, slightly punctate; longer than both eye and scape. Fastigium of vertex without a ventral tubercle at the base of fastigium ( Figure 2B ). Frons ( Figure 2F ) convex in profile. Dorsum of pronotum ( Figure 2A ) densely rugose; anterior margin straight, posterior margin convex; lateral carinae absent; transverse sulcus distinct throughout, placed in anterior part of pronotum; humeral sinus ( Figure 2F ) deep. Prosternum bispinose ( Figure 2B ). Mesosternal lobes ( Figure 2C ) deeply bifurcated in the middle, apex triangularly rounded and curved upward; metasternal lobes ( Figure 2C ) triangular. Tegmina not reaching to the apex of hind tibia when stretched, parallel-sided, apex truncated ( Figure 2H ); stridulatory file ( Figure 2E , 3A ) broad, narrow at both ends with 41 teeth; mirror of right tegmina ( Figure 2D ) longer than wide. Hind wing slightly shorter than tegmina. Thoracic auditory spiracle oval, covered by pronotum. Tympanum present on fore tibia, laterally closed, opening slit-like and directed dorsally.All legs short and thick.All femora dorsally unarmed, genicular lobes unarmed on both sides. Fore coxae spined. Fore femora ( Figure 2I ) ventrally armed in apical half by 3 spines on inner margin, unarmed on outer margin. For tibia unarmed dorsally, ventrally with 6 spines internally and 5 spines externally. Mid femora ventrally unarmed on inner margin; 3 spines present on outer margin posteriorly. Mid tibia unarmed dorsally, ventrally with 6 spines on both internal and external margin. Hind femur surpassing the apex of the abdomen. Hind femora ( Figure 2J ) ventrally armed by 2 spines apically on inner margin, 9 spines on outer margin. Hind tibiae dorsally armed with 12 spines on inner margin, 8 spines on outer margin; ventrally armed with 5 spines on inner margin, 6 spines on outer margin; dorsal spurs one pair, ventral spur two pairs (inner small and outer large). Tenth abdominal tergite ( Figure 2K ) bifurcated almost from base to form two large triangular lobes. Supra-anal plate ( Figure 2M ) triangular, longer than wide. Cerci ( Figures 2 K-O) robust, conical, apex terminated into large incurved spine; internal tooth well developed, conical, inner margin concave, curved upwards, apex acute. Subgenital plate ( Figure 2N ) long, posterior margin obtuse angularly emarginated; styli short and cylindrical, diverging apically, 1.75 times shorter than subgenital plate. Female: Unknown. Coloration: General color yellowish. Frons bright rose color. Labrum and Clypeus are yellowish. Mandibles black on inner side. Measurements (mm): Male: Length of body: 23.5; length of tegmina: 25.4; length of pronotum: 6.8; length of hind femur: 11.2; length of hind tibia: 9.8.