Haudrhytidaspis fusca ( Karny, 1911 ), 2019

Ingrisch, Sigfrid, 2019, Revision of the genus Rhytidaspis Redtenbacher, 1891 including the description of a new genus Haudrhytidaspis gen. nov. (Orthoptera: Tettigoniidae: Conocephalinae), Zootaxa 4661 (2), pp. 343-370 : 369

Haudrhytidaspis fusca ( Karny, 1911) comb. nov.

Figs. 2Q , 11 X–Z

Holotype (female): New Guinea [without precision], Lebzelter don. (Wien, NHMW).

Description. Head robust; face oval, seamlessly merging into genae; fastigium verticis compressed triangular, tip subacute ( Fig. 2Q ). Face, vertex, fastigium verticis, basal two segments of antennae, and pronotum finely rugose throughout. Pronotum low, with a weak, in middle interrupted transverse sulcus, anterior margin convex, posterior margin concave, angles rounded. Tegmen reduced to small lanceolate scales not reaching tip of mesonotum ( Fig. 11Y ). Fore femur rather short, laterally compressed, with 4 to 5 spines on ventro-internal margin; fore tibia below tibial tympanum with strongly expressed angles; surface between angles rugose. Mid legs missing. Hind femur reaching or little surpassing tip of abdomen, moderately thickened at base, with five acute spines in apical area of ventro-external margin. Hind tibia with acute spines at dorso-internal and ventro-external margins, at dorso-external margin with minute spinules.

Male unknown.

Female. Subgenital plate wider than long; hind margin broadly truncated with a short concavity in middle ( Fig. 11X ). Ovipositor elongate, little curved; ventral margin in apical area with very fine serration ( Fig. 11Z ).

Coloration. Head and pronotum uniformly maroon; following segments dark brown with fine light apical rim. Hind legs light yellowish brown, hind knees little darkened. Spines at hind femur and hind tibiae intensely black with light tip.

Figures

FIGURE 2. Face of A–B, Rhytidaspis variata meja ssp. n. (A, male Tafelberg; B, female Dorey); C–E, R. arfak sp. n. (C, male Koffo; D, male Siwi; E, female Siwi); F, R. variata brevis ssp. n. male (Freeport); G, R. variata variata ssp. n. (male Nabire); H–J, R. picta Redt., 1891 (H, male Fakfak; I, female Arguni; J, male Bundi); K–M, R. ornata sp. n. (K, male South N.G.; L, male Mindiptana; M, male Tiel); N, R. camela sp. n. (male Sorong); O, R. nigropunctata sp. n. (male Mt. Nok); P, R. genyem sp. n. (female Genyem); Q, Haudrhytidaspis fusca (Karny, 1911) comb. nov. (female type). Scales 10 mm. The arrows point at the sub-ocular carina, present in Rhytidaspis, absent in Haudrhytidaspis.

FIGURE 11. Female subgenital plate in ventral (A–H, X), lateral (I–O, W) and oblique apical view (P–V); thorax in lateral view (Y); apex of abdomen with ovipositor and hind leg in lateral view (Z); faint serration of ventral ovipositor valves before tip (Z insert).—Rhytidaspis arfak sp. n. from Koffo (A, I, P) and Siwi (E, M, T, W); R. picta Redt., 1891 Arguni (B, N, S); R. variata meja ssp. n. Pami (C, J, Q) and Dorey (F); R. ornata sp. n. South N.G. (D) and Kloofbivak (K, R); R. genyem sp. n. (G, L, V); R. variata ssp.Aindua (H, O, U); Haudrhytidaspis fusca (Karny, 1911) (X–Z).—Abbreviations: ls lateral area, vs ventral area of subgenital plate, ov base of ventral ovipositor valves. The black arrows in B and N mark the up-curved projections of the ventral surface, the white arrow in L the widened base, in Y the tegmen. Scales 1 mm; X–Z not to scale.