Doicholobosa complanatis, Shi, 2017

Shi, Fuming, 2017, New genus to science of Meconematinae (Orthoptera: Tettigoniidae) from China with description of two new species and proposal of one new combination, Zootaxa 4317 (1), pp. 165-173 : 166-170

Doicholobosa complanatis sp. nov.

Fig. 1 , Map 1

http://lsid.speciesfile.org/urn:lsid: Orthoptera .speciesfile.org:TaxonName:498200

Description. Male. The following characters are in addition to those given in the generic description. The middle of pronotum dorsal surface slightly concave, anterior margin straight, posterior margin rounded; lateral lobes longer than high, posterior margin gradually narrowing, without humeral sinus ( Fig. 1 A–B). Tegmina overlapped between left and right tegmina, nearly reaching anterior margin of first abdominal tergite, apices rounded; hind wings absent. Ventral surface of fore tibiae with 4 pairs of spines, apices with a pair of spines. Ventral surface of middle tibiae with 4 spines on internal margin and 5 spines on external margin, apices with a pair of spines. Dorsal surface of hind tibiae with 21–23 spines on internal margin and 1–2 pairs of spines on external margin. Posterior margin of tenth abdominal tergite with middle angle-shaped concavity, a short spine-shaped process on both sides ( Fig. 1 C–E). Cerci cylindrical, internal margins truncate, apical area slightly incurved, compressed, apices nearly truncate ( Fig. 1 C–F). Genitalia obviously sclerotized, the middle of dorsal surface with a long process, right-angle curved backwards, depressed, apex slightly expanded; lateral margins of genitalia rectangular expanded, posterior margin with 8–10 denticles, and the middle denticles obviously sclerotized ( Fig. 1 E–D). Basal margin of subgenital plate wide, apical area slightly narrowing, the middle of basal margin with an arc-shaped concavity, posterior margin with an U-shaped concavity; the lateral lobes rather long, distinctly curved upwards, apical area compressed, apices acute ( Fig. 1 G).

MAP 1. Distribution of the Doicholobosa species.

Female. Appearance is similar to male. Tegmina located laterally. Cerci slender, conical, apices obtuse ( Fig. 1 J–K). Ovipositor stout, curved dorsally, dorsal margin smooth, apical half of ventral margin with indistinctly teeth; apices of dorsal valvulae acute, ventral valvulae with indistinctly apical hook ( Fig. 1 K). Subgenital plate nearly oval, centre of posterior margin angle-shaped concave, lateral lobes rounded ( Fig. 1 L).

Coloration. Body yellowish brown. Eyes brown. Disc of pronotum with a pair of brown longitudinal stripes, yellowish brown between them, the outer margins with a pair of yellowish longitudinal stripes. Apices of tibiae and tarsi yellowish green. Abdominal tergites with a brown longitudinal stripe along the midline. Apices of male cerci green.

Measurements (mm). Body: ♂ 9.4–10.0, ♀ 10.4–10.5; pronotum: ♂ 3.1–3.3, ♀ 3.3–3.5; tegmina: ♂ 1.0–1.1, ♀ 1.4–1.6; hind femora: ♂ 8.3–8.5, ♀ 9.7–9.9; ovipositor: 5.0–5.3.

Material examined. Holotype: male, Daxueshan, Weixin , Yunnan, 19 August, 2012, coll. Xun Bian . Paratypes: 21 males and 11 females, Daxueshan, Weixin , Yunnan, 19 August, 2012, coll. Xun Bian and Guanglin Xie ; 5 males and 7 females, Daxueshan, Weixin , Yunnan, 19 August, 2012, coll. Xun Bian and Guanglin Xie . Other specimens: 1 male, Linfeng, Weixin , Yunnan, 3 August, 2006, coll. Longgong Chen ; 1 female, Daxueshan, Linfeng, Weixin , Yunnan, alt. 1980m, 2 August, 2006, coll. Longgong Chen ; 6 males and 10 females, Daxueshan, Weixin , Yunnan, 19 August, 2012, coll. Xun Bian ; 34 males and 34 females, Daxueshan, Weixin , Yunnan, 19 August, 2013, coll. Xun Bian and Guanglin Xie ; 2 males and 2 females, Daxueshan, Weixin , Yunnan, 20 August, 2012, coll. Xun Bian ; 20 males and 18 females, Daxueshan, Weixin , Yunnan, 20 August, 2013, coll. Xun Bian and Guanglin Xie ; 2 males and 6 females, Daxueshan, Weixin , Yunnan, 21 August, 2013, coll. Xun Bian and Guanglin Xie ; 2 males and 1 female, Daxueshan, Weixin , Yunnan, 21 August, 2012, coll. Xun Bian .

Distribution. Yunnan (Weixin).

Discussion. The new species differs from Doicholobosa rotundata sp. nov. by: apices of male cerci curved inwards, apical area compressed with apices nearly truncate; dorsal process of genitalia depressed, its apex slightly expanded, lateral margin of genitalia rectangular expanded, posterior margin with some denticles; lateral lobes of male subgenital plate long, apical area compressed laterally, apices obtuse; female subgenital plate nearly oval, the middle of posterior margin slightly concave, two lateral lobes obtusely rounded.

Etymology. The name of the new species is derived from compressed apices of male cerci.

Figures

FIGURE 1. Doicholobosa complanatis sp. nov., A – G. male, H – L. female: A – B, H – I. head and pronotum: A, H. dorsal view, B, I. lateral view; C – G, J – K. apex of abdomen: C, E, K. lateral view; D, J. dorsal view; F. apical view; G, L. subgenital plate in ventral view.