Habetia sororcula Ingrisch 2021, sp. nov.
Creators: name: Ingrisch, Sigfrid
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Tettigoniidae
Habetia
Habetia sororcula

description: <i>Habetia sororcula</i> sp. nov. Figs 2H, 4L, 6K, 7H, Map 1(17). <b>Holotype (female):</b> Indonesia: Papua, Cyclop Mountains, Ifar, elev. 300–500 m (2°33’S, 140°31’’E), 23–25.vi.1962, leg. J. Sedlacek —depository: Bernice B. Bishop Museum, Honolulu (BPBM). <b>Other specimens studied:</b> Indonesia: same locality as holotype, 24.ix.1958, leg. J.L. Gressitt — 1 female paratype (BPBM); West of Sentani, elev. 200–1000 m (2°36’S, 140°37’E), 16–18.vi.1959, leg. J.L. Gressitt — 1 female (BPBM); Ned. New Guinea Expedition 1911, leg. Dr. P.N. van Kampen — 1 female (NBC). <b>Diagnosis.</b> A slender, medium-sized species with narrow tegmen that hardly reach the hind knees. In the two localities, in which <i>H. sororcula</i> <b>sp. nov.</b> had been found, also lived <i>H. pallida</i> <b>sp. nov.</b>, from which <i>H. sororcula</i> differs by smaller size, narrower appearance, much shorter ovipositor (28–31 against 57–67 mm), narrow tegmen with dark spots instead of uniformly colored tegmen, and by the shape of the female subgenital plate that is characterized by a transverse furrow in sub-basal area, triangular projections at upper end of the baso-lateral expansions, and longer apical spine-like projections. In general appearance the new species is most similar to <i>H. quatrispina</i> <b>sp. nov.</b>, it differs by the more strongly expressed dark spots on the tegmen and by the shape of the female subgenital plate that in ventral view has the lateral margins approaching and straight and the dorso-lateral expansions end into a small triangular lobe in <i>H. sororcula</i>, while in <i>H. quatrispina</i> the disc of the subgenital plate appears semi-circular and the lateral expansions terminate into a long spine. <b>Description.</b> Elongate and slender species; wings barely reaching hind knees. Coloration of face uniformly pale, of general color; mandibles with black tips only; antennal scrobae with indistinct dark spots (Fig. 4L). Tegmen pale with distinct dark spots in cells. Femora with the following number of spines on ventral margins: (1) a 7–10, p 7–9; (2) a 6–8, p 3–5; (3) a 9–15, p 10–16 (n=4). Male unknown. Female. Subgenital plate with concave anterior margin, in subbasal area with a wide transverse furrow; proximal area laterally expanded on both sides, strongly upcurved and narrowing, before end with a longitudinal furrow followed by a triangular projection at dorso-lateral ends (Fig. 7H); disc of subgenital plate in ventral view behind transverse furrow with converging lateral margins that terminate into a pair of elongate, little diverging and up-bent, spine-like projections; apical margin between these projections concave and moderately wide (Fig. 6K). Ovipositor about as long as body; behind basal constriction dorsal margin convex, but only little elevated around mid-length (Fig. 2H); ventral valves at very base with a distinct oval indentation that is bordered on ventral side by a curved bulge (Fig. 7H). Measurements (4 females).—Body w/wings: 30–31; body w/o wings: 25–29; pronotum: 6.5–7.7; tegmen: 20.5–22.0; hind femur: 20–21; antenna: 65–100; ovipositor length: 28–31; ovipositor height: 2.0– 2.2 mm. <b>Etymology.</b> The name of the new species is adopted from the Latin word <i>sororcula</i> = little sister. It is chosen as in two localities the species was found occurring together with a larger species of the same genus, <i>H. pallida</i> <b>sp. nov.</b>, from which it differs by shorter body length, very narrow and rather short tegmina, the subgenital plate, and shorter ovipositor relative to the body length.
description: Published as part of <i>Ingrisch, Sigfrid, 2021, Revision of the genera Habetia Kirby, 1906 and Parahabetia gen. nov. from New Guinea (Orthoptera, Tettigoniidae, Conocephalinae, Agraeciini), pp. 201-256 in Zootaxa 5020 (2)</i> on page 246, DOI: 10.11646/zootaxa.5020.2.1, http://zenodo.org/record/5223173