Margattea undulata Li & Che, 2024

Li, Qian-Qian, Yao, Wen-Wen, Zhang, Ke, Wang, Zong-Qing & Che, Yan-Li, 2024, Six new species of Margattea Shelford, 1911 (Blaberoidea, Pseudophyllodromiidae, Neoblattellini) from China, ZooKeys 1191, pp. 339-367 : 339

Margattea undulata Li & Che sp. nov.

Fig. 5A-O

Type material.

Holotype: China • ♂; Chongqing City, Beibei District, Mountain Jinyun; 550 m; 12 Jul. 2016; Lu Qiu, Zhi-Wei Qiu leg; SWU-B-PS000017. Paratypes: China • 10 ♂ & 1 ♀; same data as holotype; SWU-B-PS000018-000028 • 2 ♂ & 1 ♀; Chongqing City, Jiangjin District, Mountain Simian; 425 m; 21 Sep. 2007; Wei-Wei Zhang leg; SWU-B-PS000029-000031 • 1 ♂ & 1 ♀; Chongqing City, Liangping District, Dongshan Forest Park; 2 Oct. 2007; Wei-Wei Zhang leg; SWU-B-PS000032-000033.

Measurements

(mm). Male (n = 4), pronotum length × width: 2.4-2.9 × 3.6-3.8, tegmina length: 12.8-13.6, body length: 10.4-12.1, overall length: 14.9-16. Female (n = 4), pronotum length × width: 2.3-2.5 × 3.3, tegmina length: 10.7-11.4, body length: 10.3-11.0, overall length: 13.8-13.9.

Description.

Male. Coloration. Body, head and face yellowish brown (Fig. 5A, B ). Interocular space with a brown transverse band. Ocellar spots small, yellowish white. Antennal base yellowish brown, other segments black-brown. The third and fourth maxillary palpi yellowish brown, the fifth palpus maxillary blackish brown (Fig. 5J ). Pronotal disc yellowish brown with reddish tan spots and stripes, and two lateral borders pale linen-colored and transparent (Fig. 5E ). Legs yellowish brown, with black spots at the base of the tibial spines. Tegmina yellowish brown, hind wings brownish grey (Fig. 5G, H ). Abdomen yellowish brown, both sides of each abdominal sternum with one small round black spot on the inside of the longitudinal lines. Cerci yellowish brown (Fig. 5L ). Styli pale yellow (Fig. 5N ).

Head. Vertex slightly exposed, interocellar distance slightly wider than the distance between eyes, narrower than the distance between antennal sockets (Fig. 5F ). Pronotum subelliptical, broader than long, anterior and posterior margins nearly straight, and postero-lateral margin blunt and round; disc with symmetrical spots and stripes (Fig. 5E ). Fifth maxillary palpus expanded, third and fourth maxillary palpi nearly equal in length, both twice as long as fifth maxillary palpus (Fig. 5J ). Tegmina and hind wings. Tegmina and hind wings fully developed, both extending beyond the end of abdomen (Fig. 5A, B ). Tegmina with M and CuA radial, M straight with seven complete branches. Hind wings with ScP and RA expanded at apex, M simple, without branches; CuA with four complete branches (Fig. 5G, H ). Legs. Anteroventral margin of front femur Type B3 (Fig. 5K ). Four proximal tarsomeres with pulvilli. The pretarsi with arolium, tarsal claws symmetrical and specialized, with minute denticles on ventral margins. Abdomen and genitalia. Eighth abdominal tergum specialized, with a tuft of setae near the distinctly concave middle posterior margin (Fig. 5I ). Supra-anal plate symmetrical, anterior margin straight and truncate, posterior margin obtusely round. Paraprocts simple, similar and flaky. Cerci long, with setae on the ventral surface (Fig. 5L ) Subgenital plate nearly symmetrical, anterior margin distinctly concave in the middle. Styli similar, slender; interstylar margin sinuate, left side with five or six small spines, right side with 5-7 small spines (Fig. 5N ). Left phallomere small, irregular bone-shaped, with a small spine (Fig. 5M ). Median phallomere slender rod-shaped, with a bristle brush at apex; accessory sclerite I arched, two ends enlarged, right end with a row of spines; accessory sclerite II with three lamellar structures with small spines; accessory sclerite III sickle-shaped (Fig. 5N ). Hook phallomere on the right side, apex curved inwards with a short spine (Fig. 5O ).

Female. Similar to the male but body and wings somewhat shorter (Fig. 5C, D ).

Diagnosis.

This species is similar to M. flexa Wang et al., 2014 in general appearance, but can be differentiated from the latter by the following characters: 1) interstylar margin sinuate, left side with 4-6 small spines, right side with 4-7 small spines; while in the latter, interstylar margin strongly produced, whose lateral sides upturned and scattered with spines; 2) left phallomere irregular bone-shaped, without a small spine; while in the latter, left phallomere irregular bone-shaped, with two spines; 3) accessory sclerite II with three lamellar structures with small spines; while in the latter, accessory sclerite II with lamellar structure without small spines.

Etymology.

The specific name is derived from the Latin word undulatus, which refers to the sinuate interstylar margin.

Distribution.

China (Chongqing).

Figures

Figure 5. Margattea undulata Li & Che, sp. nov. A, B, E-O male C, D female A holotype, dorsal view B holotype, ventral view C paratype, dorsal view D paratype, ventral view E pronotum, dorsal view F head, ventral view G tegmen H hind wing I eighth abdominal tergum, ventral view J maxillary palpi segments 3 - 5 K front femur, ventral view L supra-anal plate, ventral view M left phallomere, ventral view N subgenital plate and median phallomere, ventral view O hook phallomere, ventral view. Scale bars: 5 mm (A-D, G, H); 1 mm (E, F, I-L, N); 0.5 mm (M, O).