Margattea flexa, Wang, Jinjin, Li, Xinran, Wang, Zongqing & Che, Yanli, 2014

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 : 37-39

3. Margattea flexa sp. n.

Figs. 5–6 , 32–42

Description. Male: Overall length including tegmen (16.1–16.8mm); pronotum length×width (2.6–3.0mm× 3.8–4.2mm); tegmen length (13.9–14.3mm). Maxillary three terminal segments (0.56–0.74/ 0.62–0.71/ 0.44–0.49mm). Legs: fore trochanter (0.15–0.16mm), femur (2.06–2.31mm), tibia (1.65–1.73mm), tarsus (2.03mm: 1.19/0.29/0.14/0.12/ 0.29mm); mid trochanter (0.15–0.31mm), femur (2.89–3.10mm), tibia (2.59–3.00mm), tarsus (2.15mm: 1.22/0.30/0.18/0.10/ 0.35mm); hind trochanter (0.27–0.51mm), femur (3.01–3.40mm), tibia (4.52–4.7mm), tarsus (none).

Body yellowish brown with blackish brown stripes and spots ( Fig. 5 ). Face yellowish brown, with black maculae. Vertex pale yellow with two dark brown triangle-like maculae between eyes, link up in the middle. Antennae and maxillary palpomeres yellowish brown ( Fig. 6 ). Pronotum yellowish brown, scattered with blackish brown stripes and spots ( Figs 5 , 34 ). Tegmina yellowish brown, and hind wings nearly hyaline ( Fig. 5 ). Legs yellowish brown with blackish brown spots at base of spines. Sterna yellowish brown, each segment with 1 small black spot between stripes. Styli yellowish brown ( Fig. 6 ).

Vertex with interocular space narrower than the distance between antennal sockets ( Fig. 32 ). Third and fourth maxillary palpomeres approximately the same length, and both distinctly longer than the fifth ( Fig. 33 ). Pronotum nearly elliptical, hind margin nearly straight and truncate ( Figs. 5 , 34 ). Both tegmina and hind wings full developed, extending beyond abdomen. Tegmen with 5 radial sectors unbranched, 3 with branch, one of which is bifurcated at apical part; M absent; CuA with 6 branches, one of the second divisions further branched ( Fig. 35 ). Hind wing with apex of anterior rami of radius slightly thickened; median vein straight and unbranched; CuA with 5 complete branches and the second branch with sub-branch ( Fig. 36 ). Front femur Type B3 ( Fig. 37 ); tarsi 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 and with a group of setae near posteromedian margin ( Fig. 38 ).

Supra-anal plate symmetrical with hind margin slightly produced; right and left paraprocts simple and similar, sheet-like, obtuse at apex and each with 1 spiniform process at base ( Fig. 39 ). Subgenital plate symmetrical, anterior margin distinctly concave in the middle, left and right margins both convex at the near anterior margin, and hind margin not produced. Styli similar and rodlike; inter-stylar margin strongly produced, whose lateral sides upturned and scattered with spines ( Fig. 40 ). Left phallomere small and irregular ( Fig. 41 ); median phallomere rodlike, hook-like at posterior and with a row of spines near distal, accessory sclerite arclike and slender ( Fig. 40 ); hooklike right phallomere thickened at anterior, apex of hook curved and acute ( Fig. 42 ).

Material examined. Holotype: ♂, China, Guizhou Prov., Zunyi, Suiyang, Kuankuoshui Nature Reserve, 16 August 2010, coll. Wu Keliang (SWU).

Paratypes: 2 ♂, same data as holotype (SWU).

Remarks. The species is similar to Margattea furcata Liu and Zhou , but differs from the latter in the following characteristics: 1) cubitus vein with 5 complete branches, the latter with 4 branches; 2) inter-stylar margin produced, with lateral sides upturned and scattered with spines, the latter strongly produced and reflexed into one bifurcated process; 3) median phallomere with one spine-shaped sclerite at posterior, the latter with one brushshaped sclerite at posterior.

Etymology. The specific epithet is derived from Latin word “ flexus ”, referring to both sides of inter-stylar margin flexing upwards.

Distribution. China (Guizhou).

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 32 – 42. Margattea flexa sp. n. 32 head 33 maxillary palps 3 – 5 34 pronotum 35 tegmen 36 hind wing 37 front femur 38 eighth abdominal tergum 39 supra-anal plate and paraprocts, ventral view 40 subgenital plate (only including median phallomere), dorsal view 41 left phallomere 42 hook-like phallomere. Scale bars = 0.5 mm (Figs. 32 – 34, 37 – 42), 2.0 mm (Figs. 35 – 36).