Margattea bisphaerica 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 bisphaerica Li & Che sp. nov.

Fig. 4A-O

Type material.

Holotype: China • ♂; Guangxi Zhuang Autonomous Region, Laibin City, Jinxiu Yao Autonomous County, Mountain Shengtang; 1182 m; 5 Jun. 2014; Shun-Hua Gui, Xin-Ran Li leg; SWU-B-PS000011. Paratypes: China • 3 ♂ & 1 ♀; same data as holotype; SWU-B-PS000012-000015 • 1 ♂; Guangxi Zhuang Autonomous Region, Laibin City, Jinxiu Yao Autonomous County, Mountain Shengtang; 400 m; 13 Jul. 2015; Lu Qiu, Qi-Kun Bai leg; SWU-B-PS000016.

Measurements

(mm). Male (n = 6), pronotum length × width: 2.3-2.5 × 3.0-3.4, tegmina length: 11.8-12.5, body length: 9.8-11.6, overall length: 13.8-14.9. Female (n = 2), 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 brown (Fig. 4A, B ). Head and face yellowish brown. Interocular space with a wide brown transverse band. Ocellar spots yellowish white, interocellar space with a brown band. Antennae blackish brown, antennal space with a brown band (Fig. 4F ). Maxillary palpi dark brown (Fig. 4J ). Pronotal disc pale brown with dark brown spots and maculae but without stripes, and two lateral borders pale linen-colored and transparent (Fig. 4E ). Legs yellowish brown. Tegmina pale yellowish brown, hind wings brownish grey (Fig. 4G, H ). Abdomen pale brown. Cerci brown (Fig. 4L ). Styli yellowish brown (Fig. 4N ).

Head. Vertex slightly exposed, interocellar distance slightly much wider than the distance between eyes, narrower than the distance between antennal sockets (Fig. 4E ). Pronotum subelliptical, broader than long, anterior and posterior margins nearly straight, and postero-lateral angle blunt and round; disc with symmetrical but irregular spots and maculae (Fig. 4F ). Fifth maxillary palpus expanded, third and fourth maxillary palpi both longer than fifth maxillary palpus (Fig. 4J ). Tegmina and hind wings. Tegmina and hind wings fully developed, both extending beyond the end of abdomen (Fig. 4A, B ). Tegmina M and CuA radial, M straight with six complete branches. Hind wings with ScP and RA expanded at apex, M simple, without branches; CuA with four complete branches (Fig. 4 G, H ). Legs. Anteroventral margin of front femur Type B2 (Fig. 4K ). 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 bristles in the middle (Fig. 4I ). Supra-anal plate symmetrical, anterior margin straight and truncate, the middle of posterior margin slightly concave. Paraprocts simple, similar, and flaky. Cerci long, with setae on the ventral surface (Fig. 4L ). Subgenital plate asymmetrical. Styli dissimilar and spherical, the left stylus significantly smaller than the right stylus (Fig. 4N ). Left phallomere small, irregular bone-shaped, with a slender curved spine (Fig. 4M ). Median phallomere slender rod-shaped, with a curved spine at apex; accessory sclerite I arched, left end expanded, right end with a cluster of thorns; accessory sclerite II brush-shaped; accessory sclerite III slender rod-shaped (Fig. 4N ). Hook phallomere on the right side, apex curved hook-shaped (Fig. 4O ).

Female. Similar to the male. Subgenital plate symmetrical, middle posterior margin concave inward (Fig. 4C, D ).

Diagnosis.

This species is similar to M. concava Wang, Che & Wang, 2009 in general appearance, but can be differentiated from the latter by the following characters: 1) styli dissimilar and spherical, the left stylus significantly smaller than the right stylus; while in the latter, styli similar and conical; 2) left phallomere with a slender curved spine, absent in the latter.

Etymology.

The specific name is derived from the Latin words, bi and sphaericus, referring to the dissimilar and spherical styli.

Distribution.

China (Guangxi).

Figures

Figure 4. Margattea bisphaerica 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, ventral view H hind wing, ventral view 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-K, N); 0.5 mm (L, M, O).