Atlanticus (Atlanticus) beitaii Liu, 2013

Liu, Chun-Xiang, 2013, Review of Atlanticus Scudder, 1894 (Orthoptera: Tettigoniidae: Tettigoniinae) from China, with description of 27 new species, Zootaxa 3647 (1), pp. 1-42 : 25-26

publication ID	https://doi.org/ 10.11646/zootaxa.3647.1.1
publication LSID	lsid:zoobank.org:pub:32F8988B-2283-44B0-9898-80906E04CC49
persistent identifier	https://treatment.plazi.org/id/038D5F0B-FFE8-1553-FF49-FB5F9C77FD4F
treatment provided by	Felipe
scientific name	Atlanticus (Atlanticus) beitaii Liu
status	sp. nov.

Treatment

Atlanticus (Atlanticus) beitaii Liu View in CoL sp. n.

( Fig. 1M View FIGURE 1 ; 2O View FIGURE 2 ; 3O View FIGURE 3 ; 4L View FIGURE 4 ; 7 View FIGURE 7 (Z1, Z2); 9J; 11N; Table 1)

Holotype. Male, China: Hebei Prov.: Xiaowutai, Beitai , 1200-1600mm, 1964.VIII.14, Coll. Han Yinghen [IOZ(E)361968].

Paratype. Same data as in holotype, 1964.VIII.20, 1 male [IOZ(E)1340086]; 2 females [IOZ(E)361911; 361966], 1964.VIII.18.

Diagnosis. Large-sized compared to others in the Sinensis Group [7(Z1, Z2); 9J]. Proximal three quarters of stridulatory file on underside of male left tegmen with 66 distinct teeth gradually becoming larger centrad ( Fig. 1M View FIGURE 1 ). Proximal part of mirror of male right tegmen possessing a sclerotized transverse vein, portion of mirror before the sclerotized transverse vein covered by pronotum ( Fig. 2O View FIGURE 2 ). Male tenth abdominal tergum with a conversely heart-shaped notch from basal one-third ( Fig. 4L View FIGURE 4 ). Male cercus most robust at base, equally narrowed to an internal uncinate tooth in distad of basal half, and then gently incurved in apical quarter with an obtuse pointed apex ( Fig. 3O View FIGURE 3 ). Apical margin of male subgenital plate with a wide “V”-notch between robust styli, notch one quarter of length of stylus ( Fig. 11N View FIGURE 11 ). Ovipositor narrow (1.5mm wide in middle) and long, with apical half slightly recurved (about 5º angle).

Description. Holotype. Male. Disc of prozona slightly convex, and metazona approximately flat. Pronotum narrowest in proximal one-third, and then gradually ampliate caudad. Lateral lobes of pronotum slightly longer than high, deepest at middle; anterior margin very slightly concave, posterior margin oblique with a very indistinct central concavity, ventral margin aslant caudad to posterior angle. Tegmen extending to caudal margin of the third abdominal tergum, with a reticulation of poorly defined veins; posterior portion convex [7(Z1); 9J]. Fore femur with 2 interior ventral spines. Middle femur with 0–1 external ventral spine in apical half. Hind femur with 6 interior and 2–3 exterior spines on ventral margins. Fore tibia with 3 dorsal spines on exterior margin and 6 ventral spines on both margins. Middle tibia with 6 ventral spines on both margins, 2 exterior and 4 interior spines on dorsal margins. Hind tibia with 18 exterior and 16 interior spines on ventral margins.

Coloration. Generally pale brown. Inner surface of two basal antennal joints, frontal and lateral surfaces of fastigium verticis dark brown. Postocular fascia and upper portion of pleurae brown. Lateral lobe of pronotum with approximate upper half of proximal one-third and upper quarter of caudal one-third reddish brown, remainder brown. Tegmen pale yellowish; stridulatory area brown; a wide fascia in three quarters of basal field between MA+CuIA and costal margin of tegmen and veins in stridulatory area on left tegmen reddish brown. Numerous indefinite brown dots and striation on legs; ventral spines of hind femur black.

Female [ Fig. 7 View FIGURE 7 (Z2)]. Ovipositor approximately three times longer than pronotum, slightly recurved in apical half. Proximal quarter of ovipositor narrowed from base, remainder of equal width, with upper margin slightly obliquely truncate at apex. Subgenital plate distinctly transverse, emarginate in apical quarter, forming two obtuse triangular lobes.

Notes. The species has the largest body size, the longest pronotum and male tegmen, and longest styli of male subgenital plate among those distributed in Xiaowutai Mountain, Hebei Province. However, they are all similar in the body shape and have robust styli on the male subgenital plate.

Etymology. The new species is named for its type locality.

Distribution. China (Hebei).