Homogryllacris kurseonga ( Griffini, 1913b )

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 : 199

Homogryllacris kurseonga ( Griffini, 1913b) stat. & comb. nov.

Figs. 70 H–J

Gryllacris buyssoniana kurseonga Griffini, 1913b

Brachyntheisogryllacris buyssoniana kurseonga Karny 1937

Material examined. India: West Bengal, Kurseong , (26°53'N, 88°17'E), 1 male (syntype) (Paris MNHN) ; same locality, 1–31.viii.1898, leg. Decoly— 1 female, 1 male (syntypes) (Paris MNHN) ; unknown locality (without label), 1 specimen of uncertain sex (damaged) (Paris MNHN).

Discussion. This taxon is raised here to full species status based on differences in male abdominal apex. The three species H. artinii , H. buyssoniana , and H. kurseonga are probably closely related species that represent different steps of wing reduction and apart from this differ from each other by the shape and length of the male abdominal appendages of the tenth abdominal tergite. Interestingly the color pattern of the face is uniform between the three species and also agrees with the color pattern of the species from Thailand and Vietnam described above.

Diagnosis. Face medium brown; a spot at fastigium verticis, antennal scrobae, and two rings at scapus black. Squamipterous species; tegmina reduced to lateral scales just surpassing hind margin of metanotum. Male ninth abdominal tergite rather short with apical area down-curved, in apical view hind margin truncate ( Figs. 70 H–I). From below ninth abdominal tergite, probably from tenth tergite, with long and curved, acute projections that are shorter than in H. artinii and more regularly curved but much longer than in H. buyssoniana and with acute tip ( Fig. 70I ). Female subgenital plate similar to that of H. artinii but with little converging lateral margins and apex only faintly bilobate ( Fig. 70J ). Ovipositor long, faintly curved.

Measurements after Griffini (1913b) (3 males, 2 females).—body w/o wings: male 14.5–18.5, female 19.6; pronotum: male 3.3–4.0, female 4; tegmen: male 2.3–3.2, female 2.7; hind femur: male 9.5–11.7, female 11.7; ovipositor: female 20 mm.

Links to photographs at MNHN Paris: http://coldb.mnhn.fr/catalognumber/mnhn/eo/ensif1159.

Figures

FIGURE 70. A–C, Homogryllacris artinii (Griffini, 1913) male (A–B) and female (C); D–G, Homogryllacris buyssoniana (Griffini, 1912) male; H–J, Homogryllacris kurseonga (Griffini, 1913) male (H–I) and female (J); K–M, Homogryllacris? maindroni (Griffini, 1913) male; N–P, Niphetogryllacris succinea (Bolivar, 1900) male.—Male abdominal apex in apical (A, F, I, M), ventral (B, E, L, O), dorsal (D, N), and lateral view (G–H, K); female subgenital plate (C, J); male subgenital plate (P). Abbreviations: 9th ninth abdominal tergite; ce cercus; pr projection of tenth tergite; sg subgenital plate; st stylus.