Rhaphidophora complanatis Lu & Bian, 2022

Lu, Xiangyi, Liu, Jing, Huang, Xiaojuan & Bian, Xun, 2022, Contribution to the Chinese subfamily Rhaphidophorinae Walker, 1869 (Orthoptera: Rhaphidophoridae: Rhaphidophorinae) IV: Seven new species of Rhaphidophora and one new mitogenome, Zootaxa 5087 (1), pp. 129-153 : 129-131

Rhaphidophora complanatis Lu & Bian sp. nov.

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Fig. 1

Description. Male. Body small. Face with fine transverse riffles ( Fig. 1A ). 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. 1B ). Lateral ocelli large, nearly occupying all the lateral margins of rostral tubercles; median ocellus slightly smaller than lateral ocelli, oval ( Fig. 1A–B ). Apical segment of maxillary palpi nearly equal to subapical segment, apices slightly inflated. Anterior margin of pronotum slightly projected, posterior margin widely rounded ( Fig. 1B ). Fore coxae obviously inflated, with 1 minute spine; femora with 1 short apical 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 with 2 pairs of spines on dorsal surface, ventral surface with 1 internal and 3–4 external spines, apices with 1 pair of spines on dorsal and ventral surfaces separately. Dorsal surface of hind tibiae with 22–23 internal spines, 19–21 external spines, 1 pair of small subapical spines and 1 pair of apical spines, ventral surface with 2 pairs of apical spines; basitarsi with 6–7 spines and 1 apical spine on dorsal surface ( Fig. 1K ). Posterior margin of eighth and ninth abdominal tergites with small projections ( Fig. 1E ). Posterior margin of tenth abdominal tergite with sub-trapezoidal projection ( Fig. 1E ). Epiproct longer than wide and directed downwards, dorsal surface concave, the lateral margins convex ( Fig. 1G ); apical margin with 1 pair of processes, the apical half of the process compressed, ventral surface with 1 short lobe, its apex with 1 small spine on both sides ( Fig. 1F–I ). Cerci slender, conical, apices acute. Subgenital plate wider than long, posterior margin almost straight; styli long, conical, its apices obtuse, inserted on the posterolateral area of subgenital plate ( Fig. 1L ).

Measurement (mm). BL: ♂ 15.3–17.5; PL: ♂ 5.5–6.1; FFL: ♂ 6.8–7.6; MFL: ♂ 5.9–7.1; HFL: ♂ 13.0–15.3; HBL: ♂ 2.7–3.1.

Coloration. Body brown, terga with black spots. Face black brown. Ocelli pale.

Material examined. Holotype: male, Mengsa, Gengma , Yunnan, August 5, 2021, coll. by Xiangyi Lu, Xiaojuan Huang and Zhenyong Huang . Paratypes: 3 males, Daxing, Gengma, Yunnan, August 2, 2021, Xiangyi Lu .

Distribution. Yunnan (Gengma).

Discussion. The species differs from Rhaphidophora spinifera Gorochov, 2013 in: the process of male epiproct with compressed apices ( Fig. 1I–J ), posterior margin of male subgenital plate almost straight ( Fig. 1K ); while the process of Rh. spinifera with cylindrical apices and male subgenital plate with triangular concavity.

Etymology. The new species name refers to the syli with compressed apices; from Latin word “ complan ”.

Figures

FIGURE 1. Rhaphidophora complanatis sp. nov. Male: A. head in frontal view; B–C. head and thoraces: B. dorsal view, C. lateral view; D–L. apex of abdomen: D. lateral view, E. dorsal view, F–G. apical view, H. apico-lateral view, I. apical and slightly ventral view, J. apical and ventral view, K–L. ventral view.