Margattea bisignata Bey-Bienko, 1970

Wang, Jinjin, Li, Xinran, Wang, Zongqing & Che, Yanli, 2014, Four new and three redescribed species of the cockroach genus Margattea Shelford, 1911 (Blattodea, Ectobiidae, Pseudophyllodromiinae) from China, Zootaxa 3827 (1), pp. 31-44 : 32-35

1. Margattea bisignata Bey-Bienko, 1970

Figs. 1–2 , 14–22

Margattea bisignata Bey-Bienko, 1970: 373 ; Liu and Zhou, 2011: 937.

Description. Male: Overall length including tegmen (13.9–14.5mm), pronotum length×width (2.8–3.0×3.5–4.0mm), tegmen length (11.3–12.5mm). Maxillary three terminal segments (0.50–0.63/0.52–0.56/ 0.41–0.50mm). Legs: fore trochanter (0.30–0.53mm), femur (1.78–2.15mm), tibia (1.23–1.56mm), tarsus (1.23–1.63mm: 0.61–0.79/0.14–0.25/0.12–0.15/0.09–0.11/ 0.27–0.33mm); mid trochanter (0.29–0.60mm), femur (2.38–3.34mm), tibia (2.33–2.63mm), tarsus (2.16–2.5mm: 0.88–1.06/0.24–0.29/0.16–0.28/0.10–0.20/ 0.27–0.35mm); hind trochanter (0.43–0.74mm), femur (2.91–3.37mm), tibia (3.01–4.31mm), tarsus (1.47–2.41mm: 1.55–1.75/0.29–0.40/0.06–021/0.06–0.21/ 0.23–0.31mm). Female: Overall length including tegmen (13.0– 14.2mm), pronotum length×width (2.3–2.8× 3.5–3.9mm), tegmen length (11.0–12.0mm). Maxillary three terminal segments (0.48–0.61/0.48–0.54/ 0.40–0.47mm). Legs: fore trochanter (0.43–0.45mm), femur (1.94–2.07mm), tibia (1.21–1.36mm), tarsus (1.29–1.53mm: 0.66–0.69/0.17–0.21/0.16–0.18/0.07–0.13/ 0.23–0.32mm); mid trochanter (0.48–0.60mm), femur (2.39–2.58mm), tibia (2.14–2.49mm), tarsus (1.48–1.76mm: 0.85–1.03/0.24–0.25/0.10–0.11/0.10–0.12/ 0.19–0.25mm); hind trochanter (0.44–0.68mm), femur (3.11–3.19mm), tibia (3.55–4.09mm), tarsus (1.47–2.41mm: 0.61–1.45/0.35–0.40/0.18–0.19/0.12–0.14/ 0.20–0.23mm).

Body yellowish brown with blackish brown maculae ( Fig. 1 ). Vertex yellowish brown with a brown band between eyes. Antennae brown with its apex blackish brown. Maxillary palpomeres yellowish brown ( Fig. 2 ). Pronotum yellowish brown, with blackish brown maculae at disc ( Figs. 1 , 16 ). Tegmina yellowish brown, hind wings brown ( Fig. 1 ). Legs yellowish brown, with blackish brown spots at base of spines. Sterna blackish brown, with yellowish stripes along lateral margins and reaching the end of abdomen. Styli black brown ( Fig. 2 ).

Vertex with interocular space distinctly narrower than distance between antennal sockets ( Fig. 14 ). Third and fourth maxillary palpomeres approximately same length, and both distinctly longer than the fifth ( Fig. 15 ). Pronotum nearly elliptical, anterior and hind margins straight and truncate ( Figs. 1 , 16 ). Tegmina and hind wings fully developed and extending beyond abdomen. Tegmen with 10 radial sectors (Rs) unbranched, 2 radial sectors with apical posterior branches; M absent; cubitus vein (CuA) with 4 branches, one of them branched ( Fig. 17 ).

Hind wing with apex of anterior rami of radius clubbed or thickened; median vein simple; CuA with 3 complete branches, of which one forked at apex ( Fig. 18 ). Front femur Type B2 ( Fig. 19 ); tarsomeres with pulvilli present, tarsal claws symmetrical and specialized, with minute denticles on ventral margins. Male with 1st and 7th abdominal terga unspecialized, 8th abdominal tergum specialized with a group of setae near posteromedian margin ( Fig. 20 ).

Supra-anal plate symmetrical, anterior margin nearly straight, hind margin curved outwards. Right and left paraprocts simple and similar, sheet-like, obtuse at apex and each with 1 spiniform process at base ( Fig. 21 ). Subgenital plate slightly asymmetrical, anterior margin distinctly concave in the middle, left and right margins both produced in the middle, and hind margin not produced and nearly truncate. Styli similar and more or less conical. Left phallomere large and irregular; median phallomere curved at posterior, sheet-like and with brush-shaped structure, accessory structure rodlike and acute at apex, with 1 small spine near apex; accessory median phallomere arched; hooklike right phallomere robust at anterior and hook with apex acute and tapering ( Fig. 22 ).

Female is similar to male. Supra-anal plate broad and round. Subgenital plate with hind margin arched.

Material examined. 3♂, China, Jiangxi Prov., Jiulianshan, 1 May 1986, coll. Liu Zuyao and Zheng Jianzhong; 1 ♂, China, Gansu Prov., Wenxian, 800m, 26 June 1998, coll. Zhang Xuezhong; 1 ♂, China, Guizhou Prov., Guiyang, June 1981, collector unknown; 1 ♂, China, Guizhou Prov., Maolan, 28 May 1998, coll. Song Qiongzhang; 1 ♂, China, Guizhou Prov., Heiwanhe, 1200m, 3 June 2002, coll. Song Qiongzhang; 4 ♂ 2 ♀, China, Chongqing City, Changshou, 450m, 9 June 1994, coll. Zhang Youwei; 1♀, China, Chongqing City, Changshou, 450m, 9 June 1994, coll. Yang Xingke; 1 ♀, China, Chongqing City, Changshou, 450m, 9 June 1994, coll. Yao Jian; 1 ♂, China, Zhejiang Prov., Tianmushan, 1 August 2011, coll. Wangjinjin; 3 ♂, China, Gansu Prov., Kangxian, 1 August 2004, coll. Che Yanli; 1 ♂, China, Jiangxi Prov., Jiulianshan, 24 July 2008, coll. Yang Zaihua; 2 ♂ 1 ♀, China, Sichuan Prov., Emeishan, 31 May 2011, coll. Wu Keliang; 2 ♂ 1 ♀, China, Chongqing City, Jinyunshan, 6 June 2009, coll. Wu Yao; 1 ♂ 2 ♀, China, Chongqing City, Jinyunshan, 6 June 2009, coll. Yu Lang; 1 ♂ 1♀, China, Chongqing City, Jinyunshan, 6 June 2009, coll. Wang Zongqing; 1 ♂, China, Chongqing City, Jinyunshan, 19 July 2011, coll. Wu Keliang. (SWU)

Remarks. Bey-Bienko (1970) described Margattea bisignata in Russian, but he didn’t dissect the type specimen and no description of the male genitalia was provided. Liu and Zhou (2011) described this species in Chinese, but the head, maxillary palps 3–5, tegmen, hind wing, front femur and eighth abdominal tergum were excluded from the specific description. So we redescribed it in detail in order to complement and improve the specific information.

Distribution. China (Zhejiang, Fujian, Jiangxi, Hainan, Guizhou, Gansu, Sichuan, Chongqing); Vietnam.

Figures

FIGURES 1 – 13. 1 – 2. Margattea bisignata, male: 1 dorsal view 2 ventral view 3 – 4 Margattea angusta sp. n., male: 3 holotype, dorsal view 4 same, ventral view 5 – 6 Margattea flexa sp. n., male: 5 holotype, dorsal view 6 same, ventral view 7 – 8 Margattea spinosa sp. n., male: 7 holotype, dorsal view 8 same, ventral view 9 – 10 Margattea pseudolimbata sp. n., male: 9 holotype, dorsal view 10 same, ventral view 11 Margattea limbata Bey-Bienko, female: 11 holotype, dorsal view 12 – 13 Margattea hemiptera Bey-Bienko, male: 12 holotype, dorsal view. 13 same, ventral view Scale bars = 0.5 cm (Figs. 1 – 13).

FIGURES 14 – 22. Margattea bisignata Bey-Bienko 14 head 15 maxillary palps 3 – 5 16 pronotum 17 tegmen 18 hind wing 19 front femur 20 eighth abdominal tergum 21 supra-anal plate and paraprocts, ventral view 22 subgenital plate and phallomeres, dorsal view. Scale bars = 0.5 mm (Figs. 14 – 16, 19 – 22), 2.0 mm (Figs. 17 – 18).