Account
What the sources say about this taxon, as written.
description · 
Plazi
Description (male except where specified) Head.— Fastigium of vertex 3 to 5 times as wide as scapus, as long as or shorter than diameter of eye, its apex with 3 horizontally arranged tubercles; fastigium of vertex touching fastigium of frons. Eyes small relative to size of head, weakly protruding. Head proportionately large to very large; face oval to nearly circular; frons flat, usually covered with large, irregular protuberances; genal carinae usually extremely well developed, consisting of semicircle of more or less conspicuous tubercles. Mandibles and clypeus symmetrical. Thorax and wings.— Dorsal surface of pronotum smooth, flat; anterior dorsal margin straight, posterior one straight to weakly convex; lateral lobes with posterior angle broadly rounded; humeral sinus weakly indicated. Thoracic auditory spiracle large, elliptical, completely hidden under lateral lobe of pronotum; posterior edge of spiracle unmodified. Prosternum unarmed; mesosternum with lateral lobes forming vertical or oblique, short and widely separated spines; metasternum short and wide, unarmed. Wings in both sexes fully developed, surpassing hind knees by 1/4 to 1/2 of their length ( Fig. 11 A); tegmina relatively narrow to wide, sometimes nearly elliptical in outline. Stridulatory apparatus of male well developed; stridulatory area of left wing thickened, with dense network of secondary veinlets; stridulatory file (vein AA 1) straight; mirror of right wing as long as wide or slightly longer than wide, with all margins weakly convex. Posterior margin of tegmen straight or convex; apex of tegmen narrowly rounded. Legs.— Fore coxa with an elongate, forward projecting spine dorsally. Fore and mid femora unarmed dorsally but armed ventrally on anterior margins; genicular lobes of fore femora unarmed, lobes of mid and hind femora armed with short spines, but often only inner genicular lobes armed. 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; 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 only 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. Male cercus stout, bent inwards, with short, blunt, ventral, subapical spine; female cercus simple, weakly incurved. Subgenital plate of male with small, triangular apical emargination; styli sometimes reduced to hardy visible pegs; female subgenital plate with conspicuous, triangular apical emargination. Male concealed genitalia without well developed titillators but with part of phallic membrane partially sclerotized and covered by chitinous callosities. Ovipositor straight, somewhat longer than hind femur; both dorsal and ventral margins of ovipositor smooth, parallel; apex of upper valvula pointed or narrowly rounded. Coloration.— Coloration light green; face often with yellow, irregular markings; clypeus, labrum and mandibles as well as abdominal sterna contrastingly black in one species ( L. coronatum ).