Gryllacris (Gryllacris) fuscifrons Gerstaecker, 1860

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 : 43

Gryllacris (Gryllacris) fuscifrons Gerstaecker, 1860

Figs. 10G , 12D , 15 A–B, 16N–O, 17H

Material examined. Holotype (female): Indonesia: Java, ex collection v. Charpentier (Berlin ZMB).

Other specimens: same data as holotype— 1 male (Berlin ZMB); Indonesia: Sumatra, leg. Dr. Plason— 1 male (ex coll. Brunner BrW11.428, Wien NHMW) .

Diagnosis. The species is characterized by its medium yellowish to reddish brown head with black fastigium verticis, fastigium frontis and black base of antennae; the three yellow ocelli are very conspicuous ( Fig. 12D ). The venation of tegmen is as typical for the genus. The male ninth abdominal tergite is at rounded angle between dorsal and apical surface provided with a pair of distinct styliform projections with obtuse tip. At ventro-apical margin, but somewhat moved proximad and partly hidden from behind, on both sides provided with a black, little curved, acute tooth ( Figs. 15 A–B). The female subgenital plate is similar to that of other species of the genus but without the pair of oval swellings in apical area, and the styliform process from base of plate is dorso-ventrally compressed and appears wider than in females of other species groups in the genus ( Figs. 16 N–O); the ovipositor is elongate, moderately curved and with apical widening as typical for the genus ( Fig. 17H ).

Figures

FIGURE 10. Genus Gryllacris: Habitus dorsal view: A–B, G. (P.) ovulicauda sp. nov. male holotype (A) and female paratype (B); C, G. bancana Karny, 1930 male; D, G. v. vittata Walker, 1869 female holotype; E–F, G. s. signifera (Stoll, 1813) male (E) and female (F); G, G. f. fuscifrons Gerstaecker, 1860 male; H–I, G. obscura cambodiae Gorochov, 2007 female (H) and male (I); J, G. sok sp. nov. female holotype. Scales 10 mm.

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 15. Genus Gryllacris fuscifrons group (A–F) and subgenus Gigantogryllacris (G–L): A–B, G. f. fuscifrons Gerstaecker, 1860 from Brunner collection in NMW (A) and from ZMB (B); C–F, G. incornuta sp. nov. holotype; G–I, G. (Gi.) ligulata sp. nov. holotype; J–L, G. (Gi.) bilineata sp. nov. holotype.—Male abdominal apex in about apical (A, C, G, K), dorsoapical (B), oblique lateral (E–F), and ventral view (J); lateral with uplifted 9th tergite, the arrow marks the insertion point of the in situ hidden projections of 9th tergite (H); apical with strongly uplifted 9th tergite and out pressed projections (I); ventral with uplifted ninth tergite (L). The arrows mark the hidden position of the apical teeth or projections of the ninth abdominal tergite.

FIGURE 16. Genus Gryllacris: A–B, G. s. signifera (Stoll, 1813); C–D, G. o. obscura Brunner, 1888; E–F, G. obscura cambodiae Gorochov, 2007; G–H, G. peracca Karny, 1923: holotype of G. kledangensis Karny, 1923 (G) and holotype of G. lombokiana Karny, 1926 (H); I, G. v. vittata Walker, 1869 holotype; J, G. sok sp. nov. holotype; K, G. (Pardogryllacris) ovulicauda sp. nov. paratype; L–M, G. kinabaluensis Griffini, 1915; N–O, G. f. fuscifrons Gerstaecker, 1860 (O, holotype).— Female subgenital plate in ventral (A–C, E, H–I, K–L, N–O), lateral (F, M), oblique lateral (D), and latero-ventral view (G, J).

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).