Sinorhaphidophora minor, Bian, 2024

Bian, Xun, 2024, Contribution to the Chinese subfamily Rhaphidophorinae Walker, 1869 (Orthoptera: Rhaphidophoridae: Rhaphidophorinae) VIII: Three new species of Sinorhaphidophora from Hainan Province, Zootaxa 5519 (2), pp. 257-268 : 263-265

Sinorhaphidophora minor sp. nov.

小华ĸDz

Figure 5

Description. Female. General appearance smaller than other species of the genus. Head. Face smooth ( Fig. 5A ). Dorsal surface of fastigium verticis with a longitudinal furrow in the midline, apices which divide fastigium verticis into 2 distinct rostral tubercles with the apical area separated from each other ( Fig. 5B ). Eyes ovoid, protruding forward; lateral ocelli large, nearly occupying all the lateral margins of rostral tubercles; median ocellus oval, slightly smaller than lateral ocelli ( Fig. 5A–B ). Apical segments of maxillary palpi about two times as long as subapical ones, apices faintly inflated. Thorax. Anterior margin of pronotum slightly projecting, posterior margin protruding backward ( Fig. 5C ); lateral lobes longer than high, ventral margin arched. Posterior margin of mesonotum protruding backward, posterior margin of metanotum faintly protruding. Fore coxae convex with 1 spine; femora with 1 short apical spine; 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; tibiae dorsally with 2 pairs of spines, ventral surface with 2 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 18–19 internal spines, 18–20 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 large apical spine on dorsal surface along the midline ( Fig. 5E ). Abdomen. Posterior margin of fourth abdominal tergite faintly projecting in middle; fifth abdominal tergite with a very short and rounded posteromedian process; sixth abdominal tergite with 1 short posteromedian process, its longer than the preceding tergite, apical margin faintly concave ( Fig. 5G ). Posterior margin of tenth abdominal tergite concave in middle ( Fig. 5H ). Epiproct ligulate, longer than wide, dorsal surface with median furrow, apex rounded ( Fig. 5H ). Cerci slender, apices acute. Basal margin of subgenital plate transverse, before middle gradually narrowing and terminating into a spine ( Fig. 5J ). Ovipositor slightly longer than half of hind femora, upcurved, dorsal valvulae smooth, apices acute; apical areas of ventral valvulae with indistinct teeth ( Fig. 5G ).

Male. Unknown.

Coloration. Body brown, abdominal tergites darker. Eyes black. Ocelli pale yellow.

Measurements (mm). BL: ♀ 20.90–22.87; PL: ♀ 7.30–8.60; FFL: ♀ 8.78–9.63; MFL: ♀ 8.45–8.80; HFL: ♀ 20.43–20.67; HBL: ♀ 3.84–4.15; OvL: 12.08–12.91.

Material examined. Holotype: female, Wuzhishan, Hainan, May 21, 20244, coll. by Ting Luo and Yanting Qin . Paratypes: 2 females, the other information as holotype ; 1 female, Yinggeling, Haiyan , June 9, 2024, coll. by Yanting Qin and Yizhen Yao ; 1 female, Limushan , Hainan, June 5, 2024, coll. by Yanting Qin and Yizhen Yao .

Distribution. Hainan (Limushan, Wuzhishan, Yinggeling).

Discussion. The new species differs from Sinorhaphidophora hainanensis ( Bian & Shi, 2016) by body smaller than other species of the genus; female epiproct slightly wider than long ( Fig. 4H ), dorsal surface concave.

Etymology. The name of the new species refers to the smaller body.

Figures

FIGURE 4. Sinorhaphidophora gracilenta sp. nov. Female: A. head in frontal view; B. fastigium verticis in dorsal view; C–D. head and thoraces: C. dorsal view, D. lateral view; E–F. apex of hind femur: E. external view, F. internal view; G. tarsus of hind leg in lateral view; H–I, K. apex of abdomen: H. dorsal view, I. dorsal and slightly apical view, L. lateral view; J. epiproct in apical view; L. ovipositor in lateral view; M. seventh abdominal sternite and subgenital plate in ventral view.

FIGURE 5. Sinorhaphidophora minor sp. nov. Female: A. head in frontal view; B–C. head and thoraces: B. lateral view, C. dorsal view; D–E. apex of hind femur: D. internal view, E. external view; F. tarsus of hind leg in lateral view; G–J. apex of abdomen: G. dorsal view, H. apical view, I. lateral view, J. ventral view.