Rhaphidophora incilis, Shi, 2017

Shi, Fuming, 2017, Contribution to the Chinese Rhaphidophorinae Walker, 1869 (Orthoptera: Rhaphidophoridae: Rhaphidophorinae): New species of Rhaphidophora Serville, 1838 from China, Zootaxa 4317 (2), pp. 261-278 : 266-268

Rhaphidophora incilis sp. nov.

( Fig. 3 , Map 1)

http://lsid.speciesfile.org/urn:lsid: Orthoptera .speciesfile.org:TaxonName:498207

Description. Male. Fastigum verticis projecting forward, dorsal surface with a longitudinal furrow in the midline which basal half shallow and apical half deep, divided into small conical tubercles with apical area not contacting ( Fig. 3 A–B). Eyes behind the base of antennae; lateral ocelli nearly ovoid, occupying basal half of both sides of fastigum verticis; median ocellus nearly rounded, situated on between antennal sockets. Anterior margin of pronotum almost straight, posterior margin protruding backwards. Fore coxae obviously inflated, with 1 spine; femora with 1 short internal spine on ventral surface; tibiae with 1 internal and 2 external spines ventrally, apices with 1 pair of ventral spines. Middle femora with 1 pair of apical spines on ventral surface; tibiae armed 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 tibiae with 21–22 internal spines and 20–21 external spines dorsally, subapices with 1 pair of small spines on dorsal surface, apices with 1 pair of dorsal spines and 2 pairs of ventral spines. Hind basitarsi with 2–4 spines and 1 apical spine on dorsal surface along the midline. Abdominal tergites without any processes, the middle of posterior margin of tenth abdominal tergite arched concave. Basal area of epiproct broad, narrowing, apical area acute angular, dorsal surface with a deeply longitudinal furrow, apex elevated ( Fig. 3 E). Cerci slender, conical, apical half incurved ( Fig. 3 F). Basal area of subgenital plate broad, narrowing, posterior margin nearly straight, styli located on the both sides of apical area of subgenital plate ( Fig. 3 G).

Female. Body very similar to male except the following characters: posterior margin of tenth abdominal tergite arched concave, epiproct nearly triangular. Cerci slender, conical, apices acute. Ovipositor shorter than hind femora, moderately upcurved, dorsal margin smooth, apices acute; apical quarter of ventral margin with indistinct small teeth ( Fig. 3 K). Subgenital plate nearly triangular, basal margin nearly straight, lateral margins of subapical area obviously constricted, apex spine-shaped ( Fig. 3 L).

Measurements (mm). BL: ♂ 19.5–20.4, ♀ 16.5; PL: ♂ 7.0–8.1, ♀ 6.8; FFL: ♂ 7.6–8.5, ♀ 7.2; HFL: ♂ 16.5–19.5, ♀ 16.5; HTL: ♂ 15.5–18.0, ♀ 14.6; HBL: ♂ 3.5–3.9; OvL: 11.8.

Material examined. Holotype: male, Damingshan , Wuming , Guangxi, China, 8 September, 2011, coll. by Xun Bian. Paratypes: 2 males, Damingshan , Wuming , Guangxi, China, 28 May, 2011, coll. by Liying Guo ; 1 female, Damingshan, Wuming, Guangxi, 28 May, 2011, coll. by Liying Guo.

Distribution. China (Guangxi).

Discussion. The new species is most closely related to Rhaphidophora lao Gorochov, 2012 and Rhaphidophora magna Gorochov, 2012 , but it can be easily distinguished from them in following combination characters: male epiproct relatively narrow, dorsal surface with a distinct longitudinal furrow, which extending to subapical area, apex acute angular, slightly elevated in lateral view.

Etymology. The name of the new species is derived from Latin ‘ incil ’, alluding to the dorsal margin of epiproct of male with a deeply longitudinal furrow.

Figures

FIGURE 3. Rhaphidophora incilis sp. nov. A, I. head in frontal view; B. head in dorsal view; C, H. head and pronotum in dorsal view; D, J. head and thorax in lateral view; E – F, K. apex of abdomen: E. dorsal view, F, K. lateral view; G, L. subgenital plate in ventral view; A – G. male; H – L. female.