Rhaphidophora disquadrula, Li & Bian, 2024

Li, Shan & Bian, Xun, 2024, Contribution to the Chinese subfamily Rhaphidophorinae Walker, 1869 (Orthoptera: Rhaphidophoridae) VII: New descriptions of Rhaphidophora from Yunnan and Guangxi, Zootaxa 5405 (2), pp. 246-264 : 258

Rhaphidophora disquadrula sp. nov.

异Ẇ板ẍDz

Figures 8–9

Description. Male. Body medium. Head and pronotum as other species of the genus. Fore coxae with 1 spine; femora with 1 short ventral spine on internal margin; tibiae with 1 internal and 2 external spines ventrally, apices with 1 pair of spines on ventral surface. Middle femora with 1 pair of apical spines on ventral surface; tibiae dorsally with 2 pairs of spines, ventral surface with 1 internal and 3 external spines, apices with 1 pair of spines on dorsal and ventral surfaces separately. Hind femora with 1 short ventral spine on internal margin; tibiae dorsally with 17 internal spines, 18 external spines and 1 pair of small subapical spines, apices with 1 pair of dorsal and 2 pairs of ventral spines; basitarsi with 3–5 small spines and 1 apical spine on dorsal surface along the midline ( Fig. 8C ).

Epiproct slightly longer than wide, basal margin semicircular, dorsal surface faintly concave, the surrounding margins raised; posterior margin almost straight ( Fig. 8E ). Cerci slender, conical, apices acute ( Fig. 8D ). Subgenital plate transverse, posterior margin widely arched with indistinct median notch; styli cylindrical, its apices obtuse, inserted on posterolateral area of the plate ( Fig. 8E ).

Female. Posterior margin of tenth abdominal tergite with an arched concavity in middle ( Fig. 9E ). Epiproct longer than wide, dorsal surface with median furrow, apex rounded ( Fig. 9E ). Cerci slender. Subgenital plate semicircular, lateral margins of basal half convex, posterior margin rounded with 1 small angle in the middle ( Fig. 9F ). Ovipositor about half as long as hind femora, moderately upcurved, apices; dorsal margins smooth, ventral margins with indistinct teeth at subapical areas ( Fig. 9G ).

Coloration. Male body brown, female darker. Eyes black. Ocelli pale.

Measurements (mm). BL: ♂ 18.9, ♀ 20.3; PL: ♂ 5.2, ♀ 5.4; FFL: ♂ 5.6, ♀ 6.0; MFL: ♂ 7.1, ♀ 7.1; HFL: ♂ 14.2, ♀ 15.9; HBL: ♂ 3.2, ♀ 3.3; OvL: 7.3.

Material examined. Holotype: male, Daweishan, Pingbian , Yunnan, August 14, 2022, coll. by Xiangyi Lu and Xiaoyu Peng . Paratype: 1 female, the other information as holotype.

Distribution. Yunnan (Pingbian).

Discussion. The new species differs from Rhaphidophora quadrula Bian, Zhu & Shi, 2017 ( Lu et al., 2022: Fig. 12D, F ) by basal margin of male epiproct widely arched, slightly longer than wide, dorsal surface faintly concave ( Fig. 8E ); male subgenital plate short, posterior margin wide ( Fig. 8F ).

Etymology. The new species refers to the male epiproct differing from the Rhaphidophora quadrula Bian, Zhu & Shi, 2017 .

Figures

FIGURE 8. Rhaphidophora disquadrula sp. nov. Male: A. head and pronotum in dorsal view; B. head and thoraces in lateral view; C. tarsus of hind leg in lateral view; D–F. apex of abdomen: D. lateral view, E. apical and slightly ventral view, F. ventral view.

FIGURE 9. Rhaphidophora disquadrula sp. nov. Female: A. head in frontal view; B–C. head and thoraces: B. dorsal view, C. lateral view; D. tarsus of hind leg in lateral view; E–G. apex of abdomen: E. dorsal view, F. ventral view, G. lateral view.

FIGURE 12. Rhaphidophora longitabula Bian, Zhu & Shi, 2017. Male: A. head in frontal view; B–C. head and thoraces: B. dorsal view, C. lateral view; D. apices of hind femora in lateral view; E. tarsi of hind leg in lateral view; F–I. apex of abdomen: F. lateral view, G. apico-lateral view, H. apical view, I. ventral view.