Bioacoustics of Tomias (Semiophygas) gerriesmithae

General. — Body of medium size, robust. Head. — Antennae as long as body; antennal scapus with apical spine. Fastigium of vertex triangular, reaching or slightly surpassing apex of antennal sockets; flat. Frons flat, strongly oblique (fig. 2A). Thorax. — Humeral sinus of pronotum present, but weakly developed; lateral lobe about as long as wide; marginal fold of pronotum with distinct, granular protuberances along its entire length; metazona flat; posterior edge of metazona broadly rounded; pronotum surface strongly granulate (fig. 2B). Prosternum unarmed. Legs. — Legs short, robust; genicular lobes of all femora unarmed; all tibia unarmed dorsally. Wings. — Tegmen distinctly surpassing apex of abdomen; apical third broadly rounded; anterior margin rounded; vein Rs branching off slightly past middle of tegmen; veins Sc and R parallel along their entire length. Left stridulatory area coriaceous, without mirror (fig. 6A); right stridulatory area without distinct, clearly developed mirror (fig. 6B); stridulatory file nearly straight, bent in proximal fifth, flat, with 135 lamelliform teeth, 2.5 mm long, 0.16 mm wide. Hind wing rudimentary, about as long as fifth of tegmen (fig. 2E) Abdomen. — Cercus with apical tooth, nearly straight, bent in apical fourth; apex tapered (fig. 2C). Styli flattened and elliptical, about twice as long as wide. Supraanal plate small, triangular. Subgenital plate elongate, narrowly trapezoidal, with small, narrowly triangular apical incision (fig. 2D). Female subgenital plate narrowly triangular, with small apical incision; posterior lobes rounded. Ovipositor. — Apex with small dentitions on both lower and upper valvulae, pointed; ovipositor slightly curved, slightly shorter than hind femur (ratio hind femur/ovipositor 1.2) (fig. 2A). Coloration. — Abdominal sterna yellow in male, white in female, without any markings. Coloration light green; face without darker markings; hind wing hyaline; occiput without markings; subgenital plate without markings; tegmen with narrow, white strip along entire anterior edge, and with regularly distributed, small, dark spots; pronotum with sparsely distributed, small, white dots along entire marginal fold. Measurements ( 1 male , 1 female ). — body w/wings: male 29, female 35; body w/o wings: male 24, female 28; pronotum: male 5.5), female 7; tegmen: male 21, female 29; hind femur: male 9.5, female 12; ovipositor: 10 mm .