Doicholobosa rotundata, 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 : 170-172

Doicholobosa rotundata sp. nov.

Figs. 3–4 , Map 1

http://lsid.speciesfile.org/urn:lsid: Orthoptera .speciesfile.org:TaxonName:498202

Description. Male. Body small. Pronotum short, anterior margin straight, posterior margin obtusely rounded ( Fig. 3 A–B). Fore tibiae with 5 pairs of spines on ventral surface. Ventral surface of middle tibiae with 4 spines on internal margin and 5 spines on external margin. Dorsal surface of hind tibiae with 24–26 pairs of spines, ventral surface with 1 internal spine and 3 external spines. Posterior margin of tenth abdominal tergite protruding backwards, triangular concave in the middle, lateral lobes triangular ( Fig. 3 C–E). Cerci cylindrical, slightly narrowing, subapical area slightly concave on inner margin, apical area curved intro-dorsad, apices obtuse ( Fig. 3 E–I). Genitalia obviously sclerotized, strongly elevated, forming median carina, dorsal part with a spine-shaped process, its apex curved downwards, ventral area stout, its dorsal surface slightly concave, the middle with a cluster of thin spines ( Fig. 3 C, F, H, J–K). Subgenital plate nearly trapezoidal in ventral view, basal margin arc-shaped concave, gradually narrowing, posterior margin U-shaped concave, lateral lobes narrow, curved dorsally, the apical area depressed; without styli ( Fig. 3 L–M).

Female. Tegmina short, locating laterally. The middle of posterior margin of tenth abdominal tergite arcshaped concave, lateral lobes nearly triangular ( Fig. 4 C). Cerci slender, conical, apices obtuse ( Fig. 4 C–D). Subgenital plate nearly trapezoid, basal margin angle-shaped concave, lateral margin of apical area circular arcshaped, posterior margin straight, the middle slightly concave ( Fig. 4 E).

Coloration. Body yellowish green. Flagellum with light brown rings. Disc of pronotum with a pair of brown longitudinal stripes, area between them light brown, lateral margin of prozona with a pair of light yellow longitudinal stripes. Dorsal surface of abdomen with a longitudinal brown band in the midline, the outer margin with a light yellow longitudinal stripe.

Measurements (mm). Body: ♂ 9.7–9.9, ♀ 12.8; pronotum: ♂ 3.7–3.9, ♀ 3.6; tegmina: ♂ 1.4–2.0, ♀ 1.2; hind femora: ♂ 8.7–8.9, ♀ 9.3; ovipositor: 6.1.

Material examined. Holotype: male, Suiyang , Guizhou, 16 August, 2011, coll. Lehong Zhao . Paratypes: 1 male, Suiyang , Guizhou, 11 August, 2011, coll. Lehong Zhao ; 1 male, Suiyang , Guizhou, 12 August, 2011, coll. Liying Guo ; 1 male, Suiyang , Guizhou, 12 August, 2011, coll. Lehong Zhao ; 2 males and 1 female, Dashahe, Daozhen , Guizhou, 16 August, 2011, coll. Lehong Zhao .

Distribution. Guizhou (Daozhen, Suiyang).

Discussion. The new species differs from Doicholobosa nigrovittata ( Liu & Bi, 1994) by: female subgenital plate nearly rectangular, posterior margin almost straight. In contrast, the subgenital plate of Doicholobosa nigrovittata ( Liu & Bi, 1994) is nearly trapezoid with posterior margin rounded bearing an unconspicuous concavity.

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

Figures

FIGURE 3. Doicholobosa rotundata sp. nov., male: A – B. head and pronotum: A. dorsal view; B. lateral view; C – I. apex of abdomen: C – E. dorsal view; F – I. lateral view; J – K. ventral process of genitalia: J. lateral view; K. apical view; L – M. subgenital plate: L. ventral view; M. apical view.

FIGURE 4. Doicholobosa rotundata sp. nov., female: A – B. head and pronotum: A. dorsal view; B. lateral view; C – D. apex of abdomen: C. dorsal view; D. lateral view; E. subgenital plate in ventral view.