Gryllacris (Pardogryllacris) lineolata lineolata Serville, 1838

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 : 51-52

Gryllacris (Pardogryllacris) lineolata lineolata Serville, 1838

Figs. 11G , 12N , 14 F–H, 17M–N

Material examined. Indonesia: West Java, Batavia [= Jakarta], (6°10'S, 106°48'E), 1908, leg. Dr. Siebert— 1 male (Museum Wiesbaden); same locality, 1906, leg. P. Serre— 1 female (Paris MNHN) .

Diagnosis. The species is characterized by the specific shape of the male ninth abdominal tergite that has the moveable posterior area directing ventrad but is at ventral margin bent proximad, strongly widened and divided in midline into a pair of roughly auricular lobes, in ventro-apical view triangular lobes.

Description. Small to medium sized species. Head: Face narrow ovoid; forehead nearly smooth; fastigium verticis hardly wider than scapus, separated by a narrow suture from fastigium frontis; ocelli indistinct ( Fig. 12N ). Abdominal tergites two and three with abdominal stridulatory teeth little distinct, forming 1 (posterior) row at sides of tergite II and 2 rows at sides of tergite III.

Wings little surpassing hind knees ( Fig. 11G ). Tegmen: Radius with RS branching before mid-length, both forked near tip; both, media anterior and cubitus anterior fused in basal area with radius, media divides near end of basal third, cubitus anterior divides between basal fourth and fifth, CuA divides again in about mid-length into CuA1 and CuA2; cubitus posterior undivided, free throughout; with 4 anal veins.

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 5–6 external and 2 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. Discolored yellowish brown; vertex and pronotum medium brown, hind margin blackish. Fore legs medium brown, fore tibia with a pale stroke in dorsal half of anterior surface; mid and hind legs yellowish brown. Face medium brown, fastigium verticis and fastigium frontis, lower half of clypeus, and labrum yellowish brown; scapus with about inner surface dark brown to blackish, about outer surface light brown. Tegmen surface yellowish transparent, main veins yellowish; cross-veins dark brown to black; hind wing yellowish transparent; cross-veins dark brown to black.

Male. Eighth abdominal tergite strongly prolonged behind with concave lateral margins and truncate apical margin, covering base of ninth tergite. Ninth abdominal tergite (type H in Brunner 1888) distinctly narrower than tergite VIII with concave lateral margins; slightly beyond halfway suddenly bent proximad in about a 90° angle ( Fig. 14F ) giving the impressions of a truncate tip when seen from above-behind ( Fig. 14G ); the proximally bent apical part divided into two widely separated lobes with roof-shaped external and concave internal surface, in ventro-apical view giving the impression of a pair of triangles with prolonged ventral angles with obtuse tips ( Figs. 14H ). When seen from behind-below it appears as though the base of ninth tergite continuous below the prolonged eight tergite ( Fig. 14H ). Subgenital plate more than twice as wide as long; apical margin subtruncate with a pair of small triangular lobes in middle; cerci inserted at lateral angles of apical margin. Phallus membranous.

Female as in G. l. menzeli described below ( Figs. 17 M–N).

Measurements (1 male).—body w/wings: 31; body w/o wings: 22; pronotum: 4.7; tegmen: 23; tegmen width: 7; hind femur: 13.5 mm.

Figures

FIGURE 11. Genus Gryllacris: Habitus dorsal view (A–D, G–I) and lateral view (E): A, G. kinabaluensis Griffini, 1915 female; B, G. incornuta sp. nov. male holotype; C–D, G. (Pardogryllacris) longiloba Gorochov & Dawwrueng, 2015 male (C) and female (D); E–F, G. (P.) lineolata menzeli (Karny, 1924) male (E) and female (F); G, G. (P.) l. lineolata Serville, 1838 male; H, G. (Gigantogryllacris) ligulata sp. nov. male holotype; I, G. (Gi.) bilineata sp. nov. male holotype. Scales 10 mm (E and F not to scale).

FIGURE 12. Genus Gryllacris: Face: A, G. (Pardogryllacris) ovulicauda sp. nov. male holotype; B–C, G. obscura cambodiae Gorochov, 2007 male (B) and female (C); D, G. f. fuscifrons Gerstaecker, 1860 female holotype; E, G. s. signifera (Stoll, 1813) male; F, G. sok sp. nov. female holotype; G, G. incornuta sp. nov. male holotype; H, G. bancana Karny, 1930; I, G. o. obscura Brunner, 1888; J, G. v. vittata Walker, 1869 female holotype; K, G. kinabaluensis Griffini, 1915 female; L, G. (P.) longiloba Gorochov & Dawwrueng, 2015 female; M, G. (P.) lineolata menzeli (Karny, 1924) male; N, G. (P.) l. lineolata Serville, 1838 male; O, G. (Gigantogryllacris) bilineata sp. nov. male holotype; P, G.(Gi.) ligulata sp. nov. male holotype.

FIGURE 14. Genus Gryllacris subgenus Pardogryllacris: A–E, G. (P.) longiloba Gorochov & Dawwrueng, 2015; F–H, G. (P.) l. lineolata Serville, 1838, I–J, G. (P.) pardalina (Gerst.) holotype; K–L, Gryllacris iunior Griffini, 1913 (nec Brunner, 1888) probably identical with G. (P.) longiloba Gor. & Daww.—Male abdominal apex in about lateral (A, D–E, L), apical (B, F–G, H), dorsal (J), and ventral view (C, I, K).—Abbreviations: 8th abdominal tergite, 9th ninth tergite, bp basal plate of ninth tergite, ce cercus, e epiproct, pr process of ninth tergite, sg subgenital plate, r ridge of basal plate, st stylus, ti tip of basal plate, tp tenth tergite–paraproct complex.

FIGURE 17. Genus Gryllacris: A, G. (Pardogryllacris) ovulicauda sp. nov. paratype; B, G. o. obscura Brunner, 1888; C, G. peracca Karny, 1923: holotype of G. kledangensis Karny, 1923; D, G. obscura cambodiae Gorochov, 2007; E, G. s. signifera (Stoll, 1813); F, G. (P.) longiloba Gorochov & Dawwrueng, 2015; G, G. sok sp. nov. holotype; H, G. f. fuscifrons Gerstaecker, 1860 holotype; I, G. kinabaluensis Griffini, 1915; J–K, G. (P.) l. menzeli (Karny, 1924); L, G. (P.) longiloba Gor. & Dawwr., 2015; M–N, G. (P.) l. lineolata Serville, 1838—Female habitus lateral view (A–D, J), ovipositor (E–I), female subgenital plate in ventral view (K–L, N), subgenital plate with base of ovipositor in lateral view (M).