Diaphanogryllacris normalis Gorochov & Woznessenskij, 1999

Ingrisch, Sigfrid, 2018, New taxa and records of Gryllacrididae (Orthoptera, Stenopelmatoidea) from South East Asia and New Guinea with a key to the genera, Zootaxa 4510 (1), pp. 1-278 : 168

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https://doi.org/ 10.11646/zootaxa.4510.1.1

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Diaphanogryllacris normalis Gorochov & Woznessenskij, 1999


Diaphanogryllacris normalis Gorochov & Woznessenskij, 1999 View in CoL

Figs. 54 View FIGURE 54 D–E, 55E, 55J, 57E, 59H–I

Material examined. Vietnam: VinhPhuc prov. , MeLinh B.S., (21°23'38''N, 105°42'56''E), 30.vi.–1.vii.2015, leg. J. Constant & J. Bresseel (I.G.: 33.092)— 1 female, 1 male (Brussels RBINS) GoogleMaps .

Additional Description. Medium sized species. Head: Face oval; nearly smooth with very fine transverse riffles in middle; fastigium verticis wider than scapus; ocelli little distinct; fastigium frontis separated from fastigium verticis by a very fine suture; subocular furrows shallow, widening ventrad ( Fig. 55E View FIGURE 55 ). Abdominal tergites two and three each with two rows of stridulatory pegs (5–6, 10; 10–15, 17; n = 1 male, 1 female; Fig. 55J View FIGURE 55 ).

Wings reaching or little surpassing end of stretched hind tibia ( Fig. 54 View FIGURE 54 D–E). Tegmen: Radius with two branches, both forked near tip; media anterior free, in subbasal area closely approached to radius; 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 6 external and 4–5 internal spines on ventral margins; hind tibia with spaced spines on both dorsal margins, ventral margins with one pre-apical spine; with 3 apical spurs on both sides.

Coloration. General color light brown, vertex with interrupted black transverse band; pronotum with large black figure in middle; legs of general color. Face yellowish brown with black spots below compound eyes and at baso-lateral angles of clypeus; tip of mandibles also black. Tegmen semi-transparent white, veins and veinlets brown, towards base yellow, veinlets black; hind wing semi-transparent white, veins and veinlets brown.

Male. Eighth abdominal tergite only little prolonged. Ninth abdominal tergite globular with apical area bent down, vertical hind margin excised in middle and margin above excision little projecting behind; on both sides of excision with basically compressed triangular process that turns into a long substraight spine. Tenth abdominal tergite in middle and between projections of ninth tergite with a pair of upright projections that are stout at base, spinose at tip and in situ terminating under apical projection of hind margin of ninth tergite ( Fig. 57E View FIGURE 57 ). Epiproct long, furrowed, tip in situ curved proximad; paraproctes forming large plates at internal base of cercus. Subgenital plate with convex lateral margins, apical margin on both sides straight, in middle with bicornute median process; slightly curved styli inserted at lateral areas of apical margin. For phallus sclerite see Gorochov & Woznessenskij (2000).

Female. Seventh abdominal sternite largely membranous with setose subapical area. Subgenital plate triangular with obtuse tip, otherwise membranous; in female at hand tip reverted pointing proximad ( Fig. 59H View FIGURE 59 ). Ovipositor elongate substraight with faintly approaching margins; tip with narrowed margins, subobtuse ( Fig. 59I View FIGURE 59 ).

Measurements (1 male, 1 female).—body w/wings: male 46, female 46; body w/o wings: male 30, female 36; pronotum: male 6.5, female 6.8; tegmen: male 36, female 33; tegmen width: male 12.8, female 12.4; hind femur: male 17.5, female 18; ovipositor: female 30 mm.

Discussion. This species was originally described from Vietnam, TamDao. The male abdominal appendages are similar to the situation in D. annamita , but the medial lobe above the excision of the ninth tergite is narrower and the lateral projections after the basal bend shorter and pointing more posteriorly while the projections of the tenth tergite are less swollen at base. The female seventh abdominal sternite is clearly outlined, provided with two grooves and a faint medial elevation, the subgenital plate is simply triangular with obtuse tip.


Royal Belgian Institute of Natural Sciences

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