Ctenoneura papillaris, Qiu, Lu, Che, Yan-Li & Wang, Zong-Qing, 2017

Qiu, Lu, Che, Yan-Li & Wang, Zong-Qing, 2017, Contribution to the cockroach genus Ctenoneura Hanitsch, 1925 (Blattodea: Corydioidea: Corydiidae) with descriptions of seven new species from China, Zootaxa 4237 (2), pp. 265-299 : 278

Ctenoneura papillaris sp. nov.

( Figs. 8 , 20 )

Type material. Holotype: CHINA: Hainan: male ( SWU), District Five / Wufenqu (Ɓḧữ), Mt. Jianfengling , Ledong County, 29.VI.1981, Li-Zhong Hua leg. Paratypes: CHINA: Hainan: 1 male ( SYSU), Tianchi Lake (± ※), Mt. Jianfengling , Ledong County, 25.XI.1981, Zong-Ran Li leg.; 1 male ( SYSU), Wufenqu, Mt. Jianfengling , Ledong County, 29.VI.1981, Jia-Dong Chen leg. ; 4 males ( MHBU), Mt. Jianfengling , Changjiang County, 15– 16.XI.2006, Guo-Dong Ren leg.

Diagnosis. C. papillaris sp. nov. can be distinguished from other Chinese Ctenoneura by the two papillashaped processes of the supra-anal plate and the peculiar shape of the subgenital plate ( Figs. 8 C, F ).

Description. Male. Body length 8.0– 8.2 mm; overall length including tegmen 10.0– 10.2mm; pronotum length × width 1.9–2.0× 2.8–2.9 mm.

Coloration: Body brown. Head dark brown, eyes blackish brown, ocelli white, antennae yellow with base dark brown (distal portions of both type and paratypes are missing). Pronotal disk dark brown, lateral areas brown. Tegmina and wings brown. Legs dark brown, tarsi brownish yellow, spines on the legs yellow. Abdomen, cerci dark brown, subgenital plate brown ( Figs. 8 A–B ).

Head: slightly exposed ( Fig. 20 A). Eyes wide apart, interocular space greater than the distance between antennal sockets, ocelli small, reduced, frons Y-shaped and convex, antennae from the second subsegment of flagellum with much small pubescence. Pronotum: subcircular ( Fig. 20 A). Tegmina and wings: fully-developed and extending well beyond end of the abdomen; tegmen with a thick Sc, branches of R oblique, M with 3–5 branches, between R and M presenting an intercalary vein, sometimes interrupted, CuA bifurcate ( Fig. 20 B); wing with intercalary vein present, M bifurcate, one branch of which rebifurcate, CuA with 4–6 branches, CuP long and thin ( Fig. 20 C). Legs: Front femur type C1, with a few spinules on the surface and anterior margin ( Fig. 20 D). Pulvilli absent, arolia very small, tarsal claws symmetrical, simple. Abdomen: supra-anal plate in dorsal view transverse, distal margin totally hyaline, with two papillae medially, each lateral corner of supra-anal plate with one sharped process; cerci long, with some long and short setae, each basal segment of cerci with a small round process directed medially ( Figs. 8 C–D , 20 E). Subgenital plate asymmetrical, the middle bulged, distal part strongly protruding towards right, expanded, coronary ( Figs. 8 F , 20 F–G); in rear view, apex curved wavily; in dorsal view, with one robust stylus on the left ( Fig. 8 E , 20 G), near the middle with one big spot and one small spot, both of them thickened ( Fig. 20 G). Genitalia: left phallomere: posterior of lvp with three small dissimilar processes; ldp short, with large cvp. Right phallomere: R1M thin, left with a large wrench-like opening, R2 with short slp and elp, R3 with anterior apex round. Transverse sclerite (tvs): left portion irregularly expanded, flat, the rest slender, right portion curved rectangularly ( Fig. 20 H).

Female. Unknown.

Distribution. China: Hainan Island ( Fig. 4 ).

Etymology. This species is named from the Latin term “ papillaris ” meaning “papilla-like” because of the two papilla-shaped processes on the supra-anal plate.

Natural history. Remains unobserved.

Figures

FIGURE 4. Distribution map of Ctenoneura species in Hainan Island.

FIGURE 8. A – F. Ctenoneura papillaris sp. nov., male: A – B. paratype: A. dorsal view; B. ventral view. C – D. supra-anal plate: C. with T 9, dorsal view; D. close-up, dorsal view. E. stylus, ventral view. F. subgenital plate, ventral view.

FIGURE 20. Ctenoneura papillaris sp. nov., male from Hainan, China: A. pronotum with exposed head; B. tegmen; C. wing; D. front femur; E. supra-anal plate with T 9, dorsal view; F. subgenital plate, ventral view; G. subgenital plate, dorsal view; H. genitalia, ventral view.