Haplogryllacris castanea (Brunner von Wattenwyl, 1888 )

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 : 191-192

Haplogryllacris castanea (Brunner von Wattenwyl, 1888)

Figs. 66 D–E, 67H

Material examined. Himalaya, leg. Thorey— 1 male (holotype) (Wien NHMW); Indochina : Hinterindien, leg. Thorey— 1 female det. Brunner (Wien NHMW) .

Description. Medium sized to large species. Head: Face rather large, wider than pronotum, robust; frons ovoid, forehead shagreened; fastigium verticis distinctly wider than scapus, separated by a concave suture from fastigium frontis; ocelli distinct, especially median ocellus; subocular furrows distinct ( Fig. 66E ).

Wings surpassing hind knees and reaching about mid-length of stretched tibiae ( Fig. 66D ). Tegmen: Radius with two branches, both forked near tip; media anterior free from base, single-branched; cubitus anterior at base with a single branch that forks into two veins at about end of basal third of tegmen, the anterior branch makes a curvature and receives a very short connection vein from MA but does not divide instead runs as fused MP+CuA1 till tip, the posterior branch (CuA2) does not divide further too; 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 7 external and 6–7 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 maroon with darker ornaments, legs of lighter color but fore tibiae black. Face medium reddish brown; fastigium verticis of lighter color; area below antennal scrobae and compound eyes almost black; clypeus yellowish brown, labrum reddish brown; mandibles black. In a female from Indochina (BrW5506), the face is uniformly blackish brown with the median ocellus yellow and the mandibles black. Tegmen yellowish, towards tip whitish semi-transparent; veins yellow, cross-veins in about basal half dark brown to black; afterwards light brown to pale; hind wing semi-transparent with brown veins and less dark veinlets.

Male. Eighth abdominal tergite distinctly prolonged, posterior area vaulted. Ninth abdominal tergite globular, in apical area with a medial furrow, shortly forked at base; apical margin slightly bilobate and with a short sharp tooth in about middle of each lobe. Subgenital plate rather short and wide; apical margin slightly bilobate with styli inserted at apico-lateral angles ( Fig. 67H ).

Female. Seventh abdominal sternite with an obtuse swelling at each side before apical margin. Subgenital plate of the shape of a normal sternite: wider than long, apical margin subtruncate (maybe damaged: all sternites were cut along midline during preparation and stuffing of the specimen). Ovipositor elongate, slightly curved; tip subobtuse.

Measurements after Brunner (1888) (1 male, 1 female).—body w/o wings: male 32, female 32; pronotum: male 8, female 7; tegmen: male 35, female 32; hind femur: male 19, female 18; tegmen width: male 10.7; ovipositor: female 18 mm.

Discussion. The single female in the collection in NHMW Wien is labeled as from "Hinter-Indien" Indochina. It is thus not certain that it really belongs to the same species as the male or represents another similar species.

Figures

FIGURE 66. Genus Haplogryllacris: A–C, H. bilobulata sp. nov. female holotype; D–E, H. castanea (Brunner, 1888) male holotype; F–G, H. verticalis (Burmeister, 1838) [type of H. latifrons (Brunner, 1888)]; H–I, H. simplex (Walker, 1871) [type of H. hieroglyphica (Brunner, 1888)] female.—Habitus dorsal view (A, D, F, H), face (B, E, G, I), stridulatory pegs on second and third abdominal tergites, front is left (C).

FIGURE 67. Genus Haplogryllacris: A–B, H. bilobulata sp. nov. holotype; C, H. simplex (Walker, 1871) [type of H. hieroglyphica (Brunner, 1888)]; D, H. verticalis (Burmeister, 1838) [type of H. latifrons (Brunner, 1888)]; E–F, H. simplex (Walker, 1871) det. Karny; G, H. simplex (Walker, 1871) holotype; H, H. castanea (Brunner, 1888) holotype.—Female habitus lateral view (A), female end of abdomen with seventh sternite, subgenital plate and base of ovipositor (B–C), male abdominal apex in ventral (D–E, G) and apical view (H), male head, pronotum and tegmen in dorsal view (F); the black arrow aims at the point where a short branch of MA fuses with a branch of CuA and shortly after divide into MP and CuA1; the blue arrows aim at the small spines at apical margin of ninth tergite.