Rhaphidophora longitabula, 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 : 268-269

Rhaphidophora longitabula sp. nov.

( Fig. 4 , Map 1)

http://lsid.speciesfile.org/urn:lsid: Orthoptera .speciesfile.org:TaxonName:498208

Description. Male. Body medium. Fastigium verticis projecting forward, divided into right and left tubercles by a broad and shallow furrow on dorsal surface ( Fig. 4 A–B). Eyes protruding outward. Lateral ocelli large, subcircular, occupying the lateral margins of rostral tubercles, median ocellus smaller than lateral ocelli, oval, situated on between antennal sockets ( Fig. 4 B). Apical segment of maxillary palpi about 1.5 times as long as subapical one, apices inflated. Anterior and posterior margins of pronotum projecting, ventral margin of lateral lobes slightly arched ( Fig. 4 B). Fore coxae obviously inflated, with 1 small spine; ventral surface of femora with 1 internal apical spine; ventral surface of tibiae with 1 internal spine, 2 external spines and 1 pair of apical spines. Middle femora with 1 large spine on ventral surface apically; dorsal surface of tibiae with 2 pairs of spines and 1 pair of apical spines, ventral surface with 1 internal spine, 2 external spines and 1 pair of apical spines. Genicular lobes of hind femora with 1 internal spine apically; left tibiae with 16 pairs of dorsal spines, right tibiae with 15 internal spines and 19 external spines on dorsal surface, subapical area with 1 pair of dorsal spines, ventral surface unarmed, apices with 1 pair of dorsal spines and 2 pairs of ventral spines. Dorsal surface of hind basitarsi with 3 spines and 1 apical spine in the midline ( Fig. 4 G). Male epiproct triangular in dorsal view, the lateral margins lobate expanded, and curved ventrad, dorsal surface with a longitudinal median furrow, apical area angular, slightly upcurved in lateral view ( Fig. 4 D). Cerci slender, slightly curved inward, conical, apices acute ( Fig. 4 E). Basal area of subgenital plate wide, narrowing, posterior margin almost straight; styli long, cylindrical, apices obtuse, located on lateral margin of subapical area of subgenital plate ( Fig. 4 F).

Female. Unknown.

Coloration. Body black brown, mandible brown, sternum and others area of hind femora yellowish brown.

Mesurenments (mm). BL: ♂23.8; PL: ♂8.4; FFL: ♂10.2; HFL: ♂23.5; HTL: ♂20.6; HBL: ♂5.3.

Material examined. Holotype: male, Huguo , Longchuan, Yunnan, China, 8 August, 2013, coll. by Yin Zhang.

Distribution. China (Yunnan).

Discussion. The new species is very similar to Rhaphidophora doloduo Gorochov, 2013 , Rhaphidophora khmerica Gorochov, 2013 , Rhaphidophora lampung Gorochov, 2013 and Rhaphidophora xishuang Gorochov, 2012 , but differs from them in: male epiproct triangular in dorsal view, lateral margins obviously expanded, dorsal surface furrowed in the midline, apical area angular, slightly upcurved. In Rhaphidophora doloduo Gorochov, 2013 , apical third of male epiproct with lateral margins straight, apical area slightly curved ventrad; in Rhaphidophora khmerica Gorochov, 2013 , dorsal surface of male epiproct flat, apex obtuse, slightly curved upward in lateral view; in Rhaphidophora lampung Gorochov, 2013 , male epiproct nearly straight in lateral view, apical area without angular process; in Rhaphidophora xishuang Gorochov, 2012 , male epiproct oval, dorsal surface of hind basitarsi armed medially with 5–6 spines.

Etymology. The new species name is derived from the shape of male subgential plate.

Figures

FIGURE 4. Rhaphidophora longitabula sp. nov. male: A. head in frontal view; B. head and pronotum in dorsal view; C. head and thorax in lateral view; D. epiproct in dorsal view; E. apex of abdomen in lateral view; F. subgenital plate in ventral view; G. tarsus of male hind leg in lateral view.