Bioacoustics of Woznessenskia

Description. Large to medium sized species. Head: Face narrow ovoid, nearly smooth with very fine transverse riffles and impressed dots; fastigium verticis about as wide as scapus; ocelli little distinct; fastigium frontis separated from fastigium verticis by a very fine suture; subocular furrows shallow, widening ventrad ( Figs. 90E, G ). Abdominal tergites two and three each with two rows of stridulatory pegs (6–9, 16–18; 11–16, 21–25; n = 1 male , 1 female ; Fig. 90I ). Wings reaching about tip of stretched hind tibia ( Figs. 90D, F ). Tegmen: Radius with two branches, both forked near tip; media anterior free from base; cubitus anterior at base with a single branch that forks into two veins, the anterior branch makes a curvature and receives an oblique connection vein from MA and shortly after divides again into two parallel branches, MP and CuA1, while the posterior branch (CuA2) does not divide further; cubitus posterior undivided, free throughout; with 4 anal veins (fourth indistinct), last two with common stem. Legs: Fore coxa with a spine at fore margin; fore and mid femora unarmed; fore and mid tibiae with four pairs of large ventral spines and one pair of smaller ventral spurs; hind femur with 6–9 external and 10–12 internal spines on ventral margins; hind tibia with spaced spines on both dorsal margins, ventral margins with one preapical spine each; with 3 apical spurs on both sides. Coloration. General color brown; vertex black, in male interrupted by two light bands, posterior area brown. Face light-colored with fastigium verticis, antennal scrobae, base of antennae, and an interrupted band below compound eyes black; antennae including flagellum when pointing anteriorly black, upper side light. Pronotum with margins black and with two elongate black spots behind anterior margin and two black spots behind transverse furrow, in female connected by dark diffusion; abdominal tergites partly black, black portion increases from anterior to posterior tergites and from lateral to dorsal areas; abdominal sternites yellowish, in female little darkened in lateral areas; legs of general color. Tegmen semi-transparent, along margins whitish, along midline brownish; veins dark brown; hind wing semi-transparent whitish, veins dark brown. Male. Ninth abdominal tergite globular but not much down-curved apically; apical margin in middle roundly projecting, on both sides concave; lateral areas with a fold about above bases of cerci, just beside of the fold a strong hook-shaped process with recurved apex rising ( Fig. 91C ). Tenth abdominal tergite from middle with a pair of long and little curved projections with compressed disc-shaped and serrate apex ( Fig. 91D, F ). Paraprocts with rounded apex and medial furrow. Subgenital plate with convex latero-apical margins seamlessly passing over to a slightly bilobate apical margin; rather small styli inserted apico-laterally ( Fig. 91E ). Phallus membranous. Female. Seventh abdominal sternite longer than preceding sternites, lateral and apical areas membranous as indicated by transverse riffles, with dark brown lateral bands extended before apex laterad; apical margin little stiffened and with narrow rim, convex on both sides, concave in middle. Subgenital plate roughly semi-circular but for greatest part membranous with numerous transverse riffles; apical margin little bulging and sclerotised, interrupted in middle by a furrow ( Fig. 91G ). Ovipositor elongate, little curved in subbasal and apical areas, in middle nearly straight and wide, in apical third narrowing towards narrow subacute tip ( Fig. 90H ). Measurements ( 1 male , 1 female ).—body w/wings: male 51, female 52; body w/o wings: male 25, female 30; pronotum: male 6.5, female 6; tegmen: male 44, female 43; tegmen width: male 13.2, female 13; hind femur: male 19, female 19; antenna: male 110; ovipositor: female 17 mm .

Description. Large to medium sized species. Head: Face narrow ovoid, nearly smooth; fastigium verticis about as wide as scapus; ocelli little distinct; separation of fastigium frontis from fastigium verticis indistinct; transition from central part of lower face (below compound eyes) to lateral area sub-angular ( Fig. 90B ). Abdominal tergites two and three each with two rows of stridulatory pegs (9, 10; 12,>16; n = 1). Wings almost reaching tip of stretched hind tibia ( Fig. 90A ). Tegmen: Radius with two branches, both forked near tip; media anterior free from base; cubitus anterior at base with a single branch that forks into two veins, the anterior branch makes a curvature and receives an oblique connection vein from MA and shortly after divides again into two parallel branches, MP and CuA1, while the posterior branch (CuA2) does not divide further; cubitus posterior undivided, free throughout; with 4 anal veins, last two with common stem. Legs: Fore coxa with a spine at fore margin; fore and mid femora unarmed; fore and mid tibiae with four pairs of large ventral spines and one pair of smaller ventral spurs; hind femur with 7–8 external and 11–12 internal spines on ventral margins; hind tibia with spaced spines on both dorsal margins, ventral margins with one pre-apical spine each; with 3 apical spurs on both sides. Coloration. General color brown; vertex mostly black with margins brown; pronotum indistinctly mottled with lighter and darker flecks and some black spots; most abdominal tergites light with broad black hind margin; legs of general color. Face light-colored with indistinct pattern; dorsal area of fastigium verticis, scapus, pedicellus and a spot below compound eyes black. Tegmen semi-transparent, along margins whitish, along midline brownish; veins dark brown; hind wing semi-transparent whitish, veins dark brown. Male unknown. Female. Sixth abdominal sternite strongly setose. Seventh abdominal sternite distinctly longer and narrower than preceding sternites with nearly parallel margins, at around beginning of apical third with transverse riffles, then suddenly strongly widened laterally and elevated forming an auricular structure open behind; apical margin between lobes concave. Subgenital plate roughly semi-circular but for greatest part membranous as seen by numerous transverse riffles; apical margin little bulging and sclerotised, interrupted in middle by a furrow ( Fig. 91H ). Ovipositor elongate, moderately curved throughout, with slightly converging margins; tip narrowly obtuse ( Fig. 90C ). Measurements ( 1 female ).—body w/wings: 53; body w/o wings: 34; pronotum: 6.2; tegmen: 46; tegmen width: 14; hind femur: 20; ovipositor: 17 mm .