Nigrimacula Shi, Bian & Zhou

Shi, Fuming, Bian, Xun & Zhou, Zhijun, 2016, Comments on the status of Xiphidiopsis quadrinotata Bey-Bienko, 1971 and related species with one new genus and species (Orthoptera: Tettigoniidae: Meconematinae), Zootaxa 4105 (4), pp. 353-367 : 356-357

Key to the species of Nigrimacula Shi, Bian & Zhou gen. nov.

1 Pronotal disc with only 1 pair of black brown spots along anterior margin ( Fig. 1 A, G); apical area of male cerci with 2 triangular spines ( Fig. 2 B)............................................ Nigrimacula binotata Shi, Bian & Zhou sp. nov.

- Pronotal disc with 2 pairs of black brown spots ( Figs. 3 A, F; 4A, I; 5A)........................................... 2

2 Male cerci simple, internal margin with only 1 small tooth ( Fig. 3 C); apical area bifurcated in lateral view ( Fig. 3 C–D)...................................................... Nigrimacula paraquadrinotata ( Wang, Liu & Li, 2015) com. nov. Male cerci complex, with many teeth...................................................................... 3

3 Base of male cerci with 1 digitate process on interno-dorsal margin, its apex obtusely rounded ( Jiao et al., 2013: Fig. 2 C–D); interno-ventral margin of subbasal area with 1 lamellar process, its apex dentiform, the process connecting with 5–6 small

spines ( Jiao et al., 2013: Fig. 2 E–F); internal margin of apical area nearly rectangular expansion, its apex with 15–16 teeth ( Jiao et al., 2013: Fig. 2 F). Female subgenital plate nearly trapezoidal, posterior margin almost straight ( Fig. 6 D)................................................................... Nigrimacula xizangensis ( Jiao & Shi, 2013) com. nov.

- Apical area of male cerci obviously longitudinal concave, forming a cavity; interno-dorsal margin with 1 lamellar process, its apex with 9 teeth; 1 cylindrical process connecting the lamellar process, its apex with 7 teeth; internal margin with 1 spatulate process bearing 15 apical teeth; interno-ventral margin with 1 oblique, lamellar lobe, its apex with 7 teeth ( Fig. 4 C–H). Female subgenital plate pentagonal, lateral margin of basal half nearly straight, posterior margin round angular ( Fig. 4 L).................................................................. Nigrimacula quadrinotata ( Bey-Bienko, 1971) com. nov.

Figures

FIGURE 1. Nigrimacula binotata Shi, Bian & Zhou sp. nov.: A – B, G – H. head and pronotum: A, G. dorsal view; B, H. lateral view; C – E, I. apex of abdomen: C. dorso-lateral view; D, I. lateral view; E. dorso-apical view; F, J. subgenital plate in ventral view; A – F. male; G – J. female.

FIGURE 2. Nigrimacula binotata Shi, Bian & Zhou sp. nov., male: A. apex of abdomen in dorsal view; B. left cercus in interno-dorsal view; C. subgenital plate in ventral view.

FIGURE 3. Nigrimacula paraquadrinotata (Wang, Liu & Li, 2015) com. nov.: A – B, G – H. head and pronotum: A, G. dorsal view; B, H. lateral view; C – E, I – K. apex of abdomen: C. dorso-lateral view, D. dorsal view; E, I. lateral view; F, K. subgenital plate in ventral view; J. apex of ovipositor in lateral view; A – F. male; G – K. female.

FIGURE 4. Nigrimacula quadrinotata (Bey-Bienko, 1971) com. nov.: A – B, I – J. head and pronotum: A, I. dorsal view; B, J. lateral view; C – G, K. apex of abdomen: C. dorsal view, D. dorsal and slightly apical view, E. apico-dorsal view, F. apical view; G. apico-ventral view; K. lateral view; H, L. subgenital plate in ventral view; A – H. male; I – L. female.

FIGURE 6. Nigrimacula xizangensis (Jiao & Shi, 2013) com. nov., female: A – B. head and pronotum: A. dorsal view; B. lateral view; C. apex of abdomen in lateral view; D. subgenital plate in ventral view.