Bucrates

Body robust, size medium to large. Body coloration brown or olive green. Head: fastigium of vertex 2 to 4 times as wide as scapus, blunt and as long as diameter of eye, continuous with fastigium of frons; frons weakly convex; eyes small relative to head size, weakly protruding; mandibles and labrum weakly asymmetrical (right mandible smaller); tegumen of head smooth to weakly rugose, without genal carinae. Thorax: pronotum with dorsal surface smooth to moderately punctate, flat; thoracic auditory spiracle large, elliptical, completely hidden under lateral lobe of pronotum. Wings: either fully developed, well surpassing apices of hind femora, or shortened, not reaching end of abdomen; stridulatory area of left wing thickened, with dense network of secondary veinlets; mirror of stridulatory apparatus somewhat longer than wide, with all margins convex. Legs: fore coxa with an elongate, forward projecting spine dorsally; all femora armed on lower margins with minute spines; fore and mid tibiae unarmed dorsally, both ventral margins with immovable spines as long as 1/4 to 1/2 diameter of tibia; hind tibia armed on all four dorsal and ventral margins, dorsal margins distinctly expanded laterally at apex; apex of tibia with two pairs of ventral and one pair of dorsal movable spurs; tympanum on fore tibia bilaterally closed, tympanal slits facing forward, tympanal area weakly swollen, with pair of small, elongated pits below tympanal slits. Abdomen: dorsal surface of abdominal terga smooth, unmodified; male 10th tergite with shallow apical emargination, supraanal plate small, triangular; ovipositor weakly downcurved, with upper and lower margins parallel, both dorsal and ventral margins smooth.

Literature