Ctenoneura simulans Bey-Bienko, 1969

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 : 279-280

Ctenoneura simulans Bey-Bienko, 1969

( Figs. 9 , 13 B, 16 A–D, 21)

Ctenoneura simulans Bey-Bienko, 1969: 833 , figs. 2–3, ♂ holotype (In Russian); Bey-Bienko, 1970: 528, figs 2–3, ♂ holotype, type locality: “S. China, Yunnan: Hsiaomonyang (vicinity) [around Xiaomengyang Town, Jinghong City], 900–1100m ” (English version of Bey-Bienko, 1969); Roth 1993: 107, figs. 21 E–F (redrawn from Bey-Bienko, 1969); Feng, Guo & Woo 1997: 34.

Material examined. CHINA: Yunnan: 1 male ( IZCAS), Damenglong († AEAE), Jinghong City , Xishuangbanna Prefecture , 650 m, 19.IV.1958, Xu-Wu Meng leg.

Diagnosis. C. simulans differs from any other species in this genus by the simple shape of subgenital plate in ventral view ( Figs. 16 A, C) and the quite elongated eds in subgenital plate ( Fig. 9 F , 16 D).

Redescription. Male. Body length 7.1 mm; overall length including tegmen 11.1 mm; pronotum length × width 2.2 × 2.8 mm.

Coloration. Body brownish yellow. Head and eyes brown, antennae light brown. Pronotal disk brown, lateral areas yellow, subtransparent, posterior margin subtransparent narrowly. Tegmina brownish yellow, wings transparent, RP area brownish yellow. Legs, abdomen, cerci brownish yellow ( Figs. 9 A–B ).

Head: almost hidden ( Fig. 21 A), eyes wide apart, interocular space greater than the distance between antennal sockets, ocelli small, antennae from the second subsegment of flagellum with much small pubescence. Pronotum: suborbicular, lateral corners of posterior slightly quadrate ( Fig. 21 A). Tegmina and wings: fully developed extending well beyond end of the abdomen; tegmen with a thick Sc, M with 5–7 branches, between R and M presents an intercalary vein, CuA short, not bifurcate ( Fig. 21 B); hind wing with intercalary vein present, M bifurcate, CuA with 6–7 branches, CuP long and thin ( Fig. 21 C). Legs: front femur type C1, anterior margin with several spinules ( Fig. 21 D). Pulvilli absent, tarsal claws symmetrical, simple, arolia minute. Abdomen: supra-anal plate in dorsal view transverse, simple, median with a small transparent area; cerci long, slightly pubescent, segments round ( Figs. 9 C–D , 21 E). Subgenital plate asymmetrical, when observing it in the specimen, simple ( Figs. 16 A, C), when observing it separately, apex with several setae, right with a very long eds, forming a groove towards right ( Figs. 9 F , 21 F–G); in rear view, left with an incision ( Figs. 16 B, D), forming a small process, with one stylus on it ( Fig. 9 E ); in dorsal view, the sgs above the subgenital plate slender and curved, but with one side expanded, flat and round, another side sharpened, the sharpened side nested in the eds ( Figs. 13 B, 21 H). Genitalia: left phallomere: well sclerotized, lvp with some small irregular processes posteriorly; right margin straight, and anterior apex slightly curved; ldp with thickened cvp. Right phallomere: R1M tortuose, R2 with strong rop, thick slp, the elp with setose membrane, R3 large, with round anterior apex. Transverse sclerite (tvs): not regular, with two processes posteriorly, one in the right part, another near left end; left apex flat, right portion bent near the process ( Fig. 21 I).

Female. Unknown.

Distribution. China: South Yunnan ( Fig. 3 ).

Remarks. The senior author has been to IZCAS for examining the type specimens of C. acuticerca and C. yunnanea , but only found this none type specimen of C. simulans from Yunnan; the surface of the specimen was blotted with many Lepidoptera scales. We recognized it as C. simulans . Bey-Bienko (1969) didn’t mention whether there is a stylus; Roth (1993) thought the stylus could be small and invisible. We found one small stylus hidden in the incision ( Fig. 16 B); after dissection the stylus appears clearly ( Fig. 9 E–F ), thus this species actually possesses a stylus.

Figures

FIGURE 3. Distribution map of Ctenoneura species in Yunnan Province and Myanmar.

FIGURE 9. A – F. Ctenoneura simulans, male: 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 13. The subgenital plate with subgenital sclerite (sgs): A. C. helicata sp. nov.; B. C. simulans; C. C. qiuae sp. nov..

FIGURE 16. Subgenital plate of male Ctenoneura species from Yunnan, China and Myanmar: A – B. Ctenoneura simulans: A. ventral view; B. rear view. C – D. original figure of C. simulans in Bey-Bienko (1969): C. ventral view; D. rear view. E – G. original figures of Ctenoneura birmanica: E. Princis (1953); G. Roth (1993). F. Ctenoneura qiuae sp. nov., ventral view; H. Ctenoneura helicata sp. nov., ventral view; I. original figure of Ctenoneura misera in Bey-Bienko (1969); J. original figure of Ctenoneura yunnanea in Bey-Bienko (1957); K – L. Ctenoneura elongata sp. nov.: K. ventral view; L. rear view.

FIGURE 21. Ctenoneura simulans Bey-Bienko, male from Yunnan, 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. subgenital sclerite (sgs); I. genitalia, ventral view.