Margattea spinosa, 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 : 39-41

4. Margattea spinosa sp. n.

Figs. 7–8 , 43–53

Description. Male: Overall length including tegmen (6.9–7.8mm). Pronotum length×width (2.1–2.2× 2.9–3.1mm). Tegmen length (5.3–6.0mm). Maxillary three terminal segments (0.49–0.52/ 0.46–0.49/ 0.33–0.36mm). Legs: fore trochanter (0.39–0.40mm), femur (1.68–1.75mm), tibia (1.11–1.14mm), tarsus (0.09–1.28mm: 0.60–0.62/ 0.17–0.22/0.10–0.11/0.06–0.09/ 0.16–0.24mm); mid trochanter (0.39–0.52mm), femur (2.06–2.16mm), tibia (1.85–1.98mm), tarsus (1.34–1.49mm: 0.78–0.80/0.20–0.24/0.11–0.15/0.07–0.10/ 0.18–0.20mm); hind trochanter (0.55–0.61mm), femur (2.62–2.63mm), tibia (2.78–3.23mm), tarsus (2.17mm: 1.41/0.33/0.18/0.09/ 0.16mm). Female: Overall length including tegmen (7.1–7.9mm). Pronotum length×width (2.1–2.5× 2.9–3.2mm). Tegmen length (5.5–6.1mm). Maxillary three terminal segments (0.31–0.49/0.42–0.48/ 0.32–0.35mm). Legs: fore trochanter (0.28–0.31mm), femur (1.65–1.67mm), tibia (1.04–1.15mm), tarsus (1.07–1.26mm: 0.56–0.66/ 0.12–0.13/0.12–0.13/0.07–0.09/ 0.20–0.25mm); mid trochanter (0.39–0.42mm), femur (2.05–2.12mm), tibia (1.81–1.88mm), tarsus (1.21–1.53mm: 0.66–0.89/0.19–0.23/0.11–0.13/0.06–0.08/ 0.19–0.20mm); hind trochanter (0.36–0.52mm), femur (2.40–2.61mm), tibia (2.90–3.14mm), tarsus (2.04mm: 1.31/0.39/0.15/0.08/ 0.11mm).

Body yellowish brown with blackish brown stripes and maculae ( Fig. 7 ). Vertex pale yellow with a black brown band between eyes. Antennae yellowish brown with its apex blackish brown. Maxillary palpomeres yellowish brown ( Fig. 8 ). Pronotum yellowish brown, scattered with blackish brown stripes and maculae ( Figs. 7 , 45 ). Tegmina yellowish brown, and hind wings nearly colorless and hyaline ( Fig. 7 ). Legs yellowish brown with blackish brown spots at base of spines. Sterna yellowish, with black stripes along lateral margins of sterna; each segment with 1 small black spot between stripes. Styli pale white ( Fig. 8 ).

Vertex with interocular space narrower than the distance between antennal sockets ( Fig. 43 ). Third and fourth maxillary palpomeres approximately the same length, and both distinctly longer than the fifth ( Fig. 44 ). Pronotum nearly elliptical, hind margin nearly straight and truncate ( Figs. 7 , 45 ). Both tegmina and hind wings fully developed, extending beyond abdomen. Tegmen with 6 radial sectors unbranched, 1 radial sector branched; M absent; CuA with 3 complete branches ( Fig. 46 ). Hind wing with apex of anterior rami of radius slightly thickened; median vein simple or with a bifurcated branch; CuA with 1 complete branch ( Fig. 47 ). Front femur Type B2 ( Fig. 48 ); 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 at near posteromedian margin ( Fig. 49 ).

Supra-anal plate symmetrical with hind margin slightly convex; right and left paraprocts simple and similar, sheet-like, obtuse at apex and each with 1 spiniform process at base ( Fig. 50 ). Subgenital plate slightly asymmetrical, anterior and left margin distinctly concaved, and right margin obviously convex near the middle. Styli similar and rodlike. Inter-stylar margin more or less turned upwards, distance between styli wide and approximately 2 times wider than length of style ( Fig. 51 ). Left phallomere small and irregular ( Fig. 52 ); median phallomere slender and rodlike, robust at anterior and with a row of spines at posterior, accessory sclerite slender ( Fig. 51 ); hooklike right phallomere thickened at anterior, apex of hook curved and acute ( Fig. 53 ).

Material examined. Holotype: ♂, China, Hainan Prov., Baoting, Qixianling, 2 May 2013, coll. Gui Shunhua (SWU).

Paratypes: 4 ♂ 4♀, same data as holotype (SWU); 1 ♂, China, Fujian Prov., Zhangzhou, 12 May 1980, coll. Lin Wenchu (SWU).

Remarks. This species is similar to Margattea nimbata (Shelford) but differs by the following characters: 1) supra-anal plate with hind margin slightly convex, concave in M. nimbata ; 2) median phallomere with a row of spines at posterior, a pair of spinelike sclerites in M. nimbata .

Etymology. The specific epithet is derived from the Latin “ spinosus ”, referring to the accessory sclerite of median phallomere with apex spinous.

Distribution. China (Hainan, Fujian).

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 43 – 53. Margattea spinosa sp. n. 43 head 44 maxillary palps 3 – 5 45 pronotum 46 tegmen 47 hind wing 48 front femur 49 eighth abdominal tergum 50 supra-anal plate and paraprocts, ventral view 51 subgenital plate (only including median phallomere), dorsal view 52 left phallomere 53 hook-like phallomere. Scale bars = 0.5 mm (Figs. 43 – 53).