Bioacoustics of Pratigi

Description. Male . Body somewhat broad, about three times as long as maximum width, flattened dorsoventrally. Integument dull, mostly covered with short, rounded tubercles, each tubercle with a short, pale, apical, scale-like seta (setigerous tubercles); with glabrous and moderately shiny areas, which form lines on femora, anterior lobe of pronotum and mesosternum; and with fusiform, subcircular or subtriangular small spots on both sides of sternites III–VII, laterally. Head subpentagonal in shape; clypeus conspicuously elongated; mandibular plates (juga sensu GIACCHI 1987 ) short, divergent. Antenniferous tubercles with a small, lateral, acute protuberance. Antenna inserted close to eye; first antennal segment a little shorter than head but much longer than anteocular part; somewhat curved in basal and distal thirds, thickened, gradually becoming thicker towards apex; second segment somewhat longer and more slender than previous segment, straight in basal two-thirds, curved and thinner in distal third; third and fourth segments much thinner and shorter. Postocular part much wider than the anteocular. Eyes globose, semicircular in dorsal view, with sparse and very short (almost imperceptible) setae among facets. Transverse sulcus deep, sinuous, reaching inner posterior angle of eye. Ocelli moderately large. Labial segment II [first visible] thicker and shorter than the others combined, reaching approximately level of midportion of eye; segment III thinner toward apex. Segment IV slender, tapering, its apex reaching distal half of stridulatory sulcus. Postocular part of head converging behind eyes to neck, with a ramose setigerous process posterolaterally. Thorax : pronotum somewhat wider than long, without spines, slightly marginated laterally, where a regular row of setigerous tubercles is present; anterolateral angles shortly and acutely produced; a lateral, small, rounded tubercle is present near transverse furrow of fore lobe; humeral angles protruding posterolaterally, with a rounded, sublateral prominence; a shallow furrow present between fore and hind lobes of pronotum, interrupted by a pair of submedian ridges; the ridges running on approximately proximal third of hind lobe. Fore lobe with a median, thin, somewhat deep longitudinal sulcus on approximately distal two-thirds. Scutellum subtriangular, with a median, shallow depression on basal portion, process elongated, tapering. Propleura moderately declivous, ventrally reaching posterior side of fore coxae. Meso- and metapleura vertical, with a thin carina on superior border, just below which a longitudinal sulcus is present, which is deeper on basal portion of mesopleura and on metapleura. Supracoxal lobes not prominent. Anterior prosternal processes short, pointed. Prosternum distinctly elongated behind fore coxae, where it forms a narrow, depressed, subrectangular sclerite. Stridulitrum long. Meso- and metasternum flat, large. Mesosternum with a somewhat large, glabrous, shiny stripe on lateral border, which is somewhat wider towards posterior portion. Legs : fore coxae close, separated from each other by stridulitrum, which ends a little after hind margin of fore coxae; mid and hind coxae very distant from each other, inserted posterior and half externally to lateral margin of meso- and metasternum, respectively. Fore femora strongly incrassate, fusiform, armed with a few short, spiny, rounded tubercles on midline, ventrally. Mid and hind femora slender, straight, somewhat thickened subdistally. Hind femora far from reaching apex of abdomen. All tibiae compressed anteroposteriorly, except at base; with a median, narrow furrow on each lateral surface, except at base; without fossula spongiosa. Fore tibiae curved; mid and hind tibiae somewhat curved in distal third. Fore and hind tarsi three-segmented (mid tarsi absent). Hemelytra with discal cell closed. Abdomen subrectangular, flattened; sides slightly curved; distal connexival angles very shortly and obtusely prominent. Sternite II (first visible) approximately half as long as the others.