Papuogryllacris diluta huoniana ( Griffini, 1909g )

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 : 258

publication ID 10.11646/zootaxa.4510.1.1

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Papuogryllacris diluta huoniana ( Griffini, 1909g )


Papuogryllacris diluta huoniana ( Griffini, 1909g)

Figs. 94 View FIGURE 94 F–G, 95E–F, 96G–I

Material examined. Papua New Guinea: Madang, Baiteta , elev. 57 m (5°1'S, 145°45'0''E), 13.vii.1995, leg. Olivier Missa (FOG AR 29)— 1 female (ID 3259622) (Brussels RBINS) GoogleMaps ; Neu-Guinea , Kaiser-Wilhelmsland, collection Brunner v. W. 19.279, det. A. Griffini— 1 female (Wien NHMW) ; Madang, Stephansort (5°23'S, 145°43'E), bought from H. Rolle, Berlin— 1 male (Wien NHMW) GoogleMaps .

Description. Medium large species. Head: Face ovoid; forehead with impressed dots and very fine transverse riffles (formerly conserved in alcohol); fastigium verticis about as wide as scapus, separated by a distinct transverse suture from fastigium frontis; lateral ocelli small, of light color; median ocellus roughly triangular, orange; subantennal furrows and subocular furrows distinct ( Fig. 94G View FIGURE 94 ). Abdominal tergites two and three each with two rows of stridulatory pegs (4, 9; 11, 15; n = 1 female; Fig. 95F View FIGURE 95 ).

Wings surpassing hind knees ( Fig. 94F View FIGURE 94 ). Tegmen: Radius with two branches, both forked in apical area; ♀ 1: Media anterior free from base, single-branched but with a short connection branch to CuA1; cubitus anterior at base with a single branch that forks into two veins near end of basal third, 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.

Legs: Fore coxa with a spine at fore margin; fore and mid femora unarmed; fore and mid tibiae with 3 pairs (on mid tibia 2 or 3 pairs only) of large ventral spines and 1 pair of smaller ventral spurs; hind femur with 8–11 external and 13–18 (basal very small) internal spines on ventral margins; hind tibia with spaced spines on both dorsal margins, ventral margins without pre-apical spine; with 3 apical spurs on both sides.

Coloration. General color light brownish with indistinct marks on pronotum. Face maroon; fastigium frontis, lower part of clypeus, upper area of labrum and bordering areas of mandibles of lighter color. Tegmen yellowish semi-transparent; veins and veinlets yellow, darker towards base; hind wing semi-transparent white; veins yellow, towards base brown; cross-veins greyish.

Male. Ninth abdominal tergite with a pair of narrow black hooks from below ventral margin. Tenth abdominal tergite band shaped, interrupted in midline. Subgenital plate wider than long, from apical margin with a narrow projection little widening towards convex apex, that is very faintly incised in middle ( Fig. 95E View FIGURE 95 ). For general description see Karny (1928a).

Female. Seventh abdominal sternite shorter than preceding sternites, with basal margin convex, especially in middle. Intersegmental membrane between seventh sternite and subgenital plate provided with a pair of small bean-shaped sclerotizations with medial furrow. Subgenital plate short pear-shaped with strongly upcurved lateral margins; apical margin slightly convex ( Figs. 96 View FIGURE 96 H–I). Ovipositor long, faintly curved, nearly substraight; tip subacute ( Fig. 96G View FIGURE 96 ).

Measurements (1 female from Baiteta only).—body w/wings: 38; body w/o wings: 28; pronotum: 6.5; tegmen: 31.5; tegmen width: 10.0; hind femur: 19.5; ovipositor: 25 mm.

Discussion. The description of the female is mainly based on the new record from Baiteta. This specimen and its subgenital plate agrees with the specimen from Brunner's collection (19.279). Description of the male abdominal apex refers to the male from Stephansort (BrW 19.702).


Royal Belgian Institute of Natural Sciences


Naturhistorisches Museum, Wien

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