Margattea transversa J-J He & Z-Q Wang, 2021

He, Jia-Jun, Jin, Du-Ting, Wang, Yi-Shu, Che, Yan-Li & Wang, Zong-Qing, 2021, Species delimitation of Margattea cockroaches from China, with seven new species (Blattodea, Ectobiidae, Pseudophyllodromiinae), ZooKeys 1036, pp. 121-151 : 121

Margattea transversa J-J He & Z-Q Wang sp. nov. Figure 8A-N

Type material.

Holotype: China • ♂; Meizihu Reservoir, Pu’er City, Yunnan Province; 20-V-2016; Lu Qiu, Zhi-Wei Qiu leg; SWU-B-EC141801. Paratypes: China • 2♂; same date as for holotype SWU-B-EC141802-141803.

Other materials.

China • 1♀; Meizihu Reservoir, Pu'er City , Yunnan Province; 20-V-2016; Lu Qiu, Zhi-Wei Qiu leg. • 1♀; Meizihu Reservoir, Pu'er City , Yunnan Province; 21-V-2016; Lu Qiu, Zhi-Wei Qiu leg.

Diagnosis.

This species is similar to M. nimbata (Shelford, 1907) in male genitalia, but it can be differentiated from the latter by the following characters: 1) median phallomere base with a curved spine, while in the latter, with two curved spines; 2) a long piece of bone extends from the right side of the accessory structure, while absent in the latter; and 3) left phallomere with four long spines; the latter with two long spines.

Measurements

(mm). Male (n = 3), pronotum: length × width 2.5-2.6 × 3.2-3.9, tegmina length: 11.7-12.3, overall length: 14.0-14.1. Female, pronotum: length × width 2.6-2.7 × 3.2-3.4, tegmina length: 11.3-11.5, overall length: 13.4-13.6.

Description.

Male. Coloration: body pale yellowish-brown with brown (Fig. 8A, B ). Face yellowish-brown. Interocular space with a dark brown band. Ocelli spots white and big, interocelli space with a brown band. Antennae pale yellowish-brown. Clypeus medium yellowish-brown. Maxillary palps light yellowish-brown (Fig. 8E ). Pronotal disc brownish-gray with brown stripes and two lateral borders light grey (Fig. 8D ). Tegmina pale yellowish-brown, wings grey brown (Fig. 8F, G ). Abdomen yellowish-brown. Cerci pale yellowish-brown to pale brown (Fig. 8K ). Styli faint yellow (Fig. 8M ). Head: vertex slightly exposed, interocular distance same length as antennal socket space (Fig. 8C ). Pronotum nearly trapezoidal, broader than long, widest part after midpoint, front and posterior margins nearly straight, and postero-lateral angle blunt and round; disc with symmetrical irregular macules (Fig. 8D ). Third and fourth palpi of approximately same length, both obviously longer than fifth palp, fifth palp obviously expanded (Fig. 8E ). Tegmina and wings: tegmina and wings fully developed, both extending beyond the end of abdomen (Fig. 8A, B ). Tegmina with ScP simple, R multi-branched, M straight with seven complete branches. Hind wings with ScP and RA expanded at base; M straight and simple, without branches; CuA with five complete branches (Fig. 8F, G ). Legs: anteroventral margin of front femur type B2 (Fig. 8H ). Pulvilli present on four proximal tarsomeres. Tarsal claws symmetrical and specialized, inner margin serrated, arolia present (Fig. 8I ). Abdomen and genitalia: eighth abdominal tergum specialized with a tuft (Fig. 8J ). Supra-anal plate transverse, posterior margin convex. Paraprocts simple, similar, splitting into two pieces (Fig. 8K ). Subgenital plate symmetrical. Styli similar, slender, distinctly separated (Fig. 8M ). Left phallomere complex, irregular bone-shaped, with four spines (Fig. 8L ). Median phallomere slender rod-shaped, apex with a curved spine; the accessory structure arched, at rightmost end blunt (Fig. 8M ). Hook phallomere on the right side, base curved inwards with a short spine (Fig. 8N ).

Female same as male.

Etymology.

The latin name " transversus " refers to the interocular space having a dark brown transverse band.

Distribution.

China (Yunnan).

Figures

Figure 8. A-N Margattea transversa sp. nov., male A holotype, dorsal view B holotype, ventral view C head, ventral view D pronotum, dorsal view E maxillary palpi segments 3 - 5, ventral view F tegmen, dorsal view G hind wing, dorsal view H front femur, ventral view I tarsal claws J eighth abdominal terga K supra-anal plate and paraprocts, ventral view L left phallomere, dorsal view M subgenital plate and median phallomere, dorsal view N hook-like phallomere, dorsal view. Scale bars: 5 mm (A, B); 0.5 mm (C-H, J, K-N); 0.1 mm (I).