Anatlanticus liaoningensis Liu

Liu, Chunxiang, 2015, New species from the genera Kansua and Anatlanticus (Orhtoptera: Tettigoniidae) in China, Zootaxa 3925 (2), pp. 291-300 : 298-299

Anatlanticus liaoningensis Liu sp. n.

( Fig. 2 D, J; Fig. 3 D; Fig. 4D; Fig. 5 D, H, N)

Holotype, m [IOZ(E)361914], China: Liaoning Prov.: Qingyuan, 1954. VIII.16, Coll. unknown.

Paratype, 1 male, same data as in holotype; 1 female [IOZ(E)1919506], 1 male [IOZ(E)1919507], China: Liaoning Prov.: Kuandian, 1965.VIII., Coll. Xu Wenru.

Diagnosis. Small-sized compared to the species in the genus Mongolodectes . Male tegmen extending beyond middle of the seventh tergum when contracted ( Figs. 2 D, J). Tenth abdominal tergum with a U-shaped notch in apical two fifths; apex of two lateral apical lobes slightly curved outwards (Fig. 5D). Epiproct narrow, triangular, dorsally concaved (Fig. 5D). Cerci short, robust, slightly narrowed backwards; apex with neighboring incurved inner tooth and apical hook, and the latter shorter than the former (Fig. 5H). Subgenital plate narrow long; apical margin with a moderately triangular notch between styli, notch approximately as long as stylus (Fig. 5N).

Description. Fastigium of vertex slightly narrower than first antennal segment; dorsally with a shallow median sulcus. Compound eyes subcircular. Disc of pronotum with slightly concaved anterior margin and widely round posterior margin. Disc of prozona slightly convex, with smooth lateral margins; metazona approximately flat, with obvious lateral carinae. Disc of prozona approximately equally wide; metazona abruptly ampliate caudad from proximal part. The first transverse sulcus lying at anterior one-fifth, and central transverse sulcus shallow, Ushaped. Lateral lobes of pronotum longer than high. Tegmen bullate, widened, with clear longitudinal and cross veins; twice longer than pronotum; apex round ( Figs. 2 D, J, 3D). 2/3 basal part of stridulatory file on underside of left tegmen with 65 distinct stridulatory teeth ( Fig. 3 D). These teeth are middle-spaced arranged and gradually becoming larger centrad. Mirror on right tegmen heart-shaped, approximately as long as wide (Fig. 4D).

Fore coxae armed with a sharp spine. Fore and median femora without ventral spines. Hind femora with 4--5 exterior and 3 interior spines on ventral margin. Fore tibiae with 6 ventral spines on both margins and 2--3 dorsal exterior spines. Middle tibiae with 6 ventral spines on both margins, 2 dorsal exterior spines and 4 dorsal interior spines. Hind tibiae with 15 exterior and 14 interior spines on dorsal margin.

Female. Tegmina distinctly shorter than those in male, slightly extending beyond proximal margin of fourth abdominal tergum. Cerci twice as long as basal width, short conical. Subgenital plate much wider than longer, with a widely triangular medial incision (>90 degree) in apical one third part. Ovipositor very long, approximately straight, slightly decurved in apical one third part, obliquely truncated at dorso-apical portion.

Coloration. Generally testaceous with exception of golden tegmen. Face, gena, and compound eyes yellow. Following parts shining dark testaceous: antennae, apices of fastigium of frontis and of vertex, postocular fascia, disc of pronotum except a pair of yellowish blotches on base of metazona, lateral lobes of pronotum except a comparatively a narrow brown stripe along ventral margin of lateral lobes of pronotum, and abdominal tergite. Disc of pronotum red brown, with exception of a few dark testaceous stripes in pronota. Legs brown; fore and median femora with numerous black spots on lateral surface; hind femur with a black central stripe separated upper from lower part. Spines of each leg black. Abdominal sternite red brown. Subgenital plate brown.

Etymology. The name is named for the type locality of the new species.

Notes. The new species distinctly differs from A. uvarovi and A. longispeculi Liu sp. n. by the shape and size of inner and apical spines of male cerci, and those of the male apparatus. It also distinctly differs from A. uvarovi by the length of pronotum, length of male tegmen, and shape of inner and apical teeth of male cerci. In addition, it distinctly differs from A. longispeculi Liu sp. n. by the shape of apical lateral lobes of male tenth abdominal tergum and of notch of male subgenital plate.

Figures

FIGURE 2. Body in whole view. (A, E, H) K. diebua sp. n. (holotype and paratype); (B, F, I) M. alashanicus; (C, G) A. longispeculi sp. n. (holotype); (D, J) A. liaoningensis sp. n.. (holotype); (A – G, J) male; (H – I) female; (A – D) body, lateral view; (E – J) body, dorsal view. (photoed by Guoqing Mai).

FIGURE 3. Male stridulatory file on underside of left tegmen. (A) K. diebua sp. n.; (B) M. alashanicus; (C) A. longispeculi sp. n.; (D) A. liaoningensis sp. n.. (photoed by Guoqing Mai).