Sorineuchora formosana (Matsumura, 1913)

Li, Meng, Che, Yan-Li, Zheng, Yu-Hong & Wang, Zong-Qing, 2017, The cockroach genus Sorineuchora Caudell, 1927 from China (Blattodea, Ectobiidae, Pseudophyllodromiinae), ZooKeys 697, pp. 133-156 : 134

Sorineuchora formosana (Matsumura, 1913) Figs 2, 11 A–B

Chorisoneura formosana Matsumura, 1913: 14, pl. 2, fig. 13 (♀); Asahina 1978: 235 (♂♀).

Theganopteryx formosana (Matsumura): Shiraki 1931: 209 (♂♀).

Sorineuchora formosana (Matsumura): Roth 1998: 15 (♂♀).

Material examined

(all deposited in IESWU). Yunnan: 1 male, Xishuangbanna, Tropical Botanical Garden, 593 m, 12 November 2009, Guo Tang leg.; 1 male, Mengzi, Lvshuihe first hydroelectric station, 470 m, 19 April 2009, Wei-Wei Zhang leg.; 1 male, Simao, 01 May 2012, Li-Chao Tian leg.; 1 female 1 male, Xishuangbanna, National Nature Reserve, 736 m, 18 August 2012, Guo Zheng leg.; 1 male, Xishuangbanna, Mengla, 1200-1400 m, 10 May 1958, Chun-Pei Hong leg. Hainan: 1 male, Tongzha, 07 June 1963, Ya-Lin Zhang leg.; 1 male, Ledong, Mt. Jianfengling, 1050 m, 06-09 December 2007, Wei-Wei Zhang leg.

Diagnosis.

CuA with one complete branch, between CuA and its branch existing two or three cross veins (Fig. 2D); L2vm rod-like, bifurcate; R3 shaped like a slender curved filament, lying under the L2vm; a setose membrane on the right side (Fig. 2H). Using these traits, S. formosana can be distinguished from its congeneric species.

Supplement to the description provided in Roth (1998: 15-16).

Measurements

(mm). Body length without cerci: male 6.8-8.3, female 7.6-8.8; overall length including tegmen: male 8.9-10.4, female 8.9-10.5; pronotum length × width: male 1.85 × 3.1, female 1.95 × 3.4; tegmen length: male 7.2-8.7, female 7.6-8.1.

Male. Body small, yellowish brown. Vertex slightly brown, frons yellowish white. Ocellar area yellowish white. Maxillary palpi yellowish white. Tegmina yellowish brown, veins and radial field yellowish white. Abdomen and legs yellow. Interocular space slightly narrower than distance between antennal sockets. Pronotum subelliptical, anterior and posterior margins nearly truncate.

Distribution.

China (Taiwan, Hainan, Yunnan).

Remarks.

Based on the illustrations of wings and subgenital plate in Asahina (1978, figs 8, 16, 17) and the subgenital plate and genitalia in Roth (1998, fig. 40), we identified our materials as S. formosana . Asahina (1978) noted that S. formosana allied to S. lativitrea from Southeast Asia. However, the differences between S. formosana (Fig. 11 A–B) and the holotype of S. lativitrea (Fig. 11 C–D) (size and color) make us suspect of the supposed relationship.