Anaplecta bicruris Zhu & Che sp. nov.

Figures 3, 13A-C

Type material.

Holotype: China • male; Hainan Prov., Ledong County, Mt. Jianfengling; 18°42.63'N, 108°52.75'E; 940-1000 m; 24 June 2020; Yong Li, Jing Zhu leg.; SWU-B-B-A060001.

Paratypes: China • 1 male; same data as holotype; SWU-B-B-A060002 • 1 male and 3 females; Hainan Prov., Ledong County, Mt. Jianfengling; 18°42.63'N, 108°52.75'E; 940-960 m; 23 June 2020; Yong Li, Jing Zhu leg.; SWU-B-B-A060003 to 060006 • 5 males; Hainan Prov., Ledong County, Mt. Jianfengling; 18°42.58'N, 108°52.57'E; 940-1000 m; 23 June 2020; Rong Chen, Li-Kang Niu leg.; SWU-B-B-A060007 to 060011.

Diagnosis.

This species is similar to A. corneola Deng & Che, 2020, but can be distinguished as follows: 1) L2vm stamen-shaped with sharp bifurcation in A. bicruris sp. nov., while simple, sheet-like in A. corneola; 2) R1 absent in A. bicruris sp. nov., while horn-shaped in A. corneola; 3) the protrusion of anterior arch horn-shaped in A. bicruris sp. nov., while that of A. corneola nearly cylindrical; and 4), basivalvula with a backward extension in A. corneola, while only curled in A. bicruris sp. nov.

Etymology.

The specific epithet is derived from the Latin word Anaplecta bicruris, meaning that L2vm is bifurcated.

Measurements (mm).

Male: pronotum length × width: 1.40-1.49 × 1.84-2.05, tegmina length: 4.97-5.66, overall length: 6.16-6.85. Female: pronotum length × width: 1.34-1.47 × 1.86-2.21, tegmina length: 5.01-5.53, overall length: 6.23-6.75.

Description.

Coloration. Body light yellowish brown, face yellowish brown (Fig. 3A, B). Antennae brown, maxillary palpus pale brown (Fig. 3D). Pronotum and tegmina light yellowish brown, lateral edges pale or hyaline, pronotum with two symmetrical brown markings (Fig. 3C, E). Hind wings infuscate, costal field and appendicular field darker than remaining parts (Fig. 3F). Abdominal sterna, legs, and cerci yellowish brown (Fig. 3B).

Head and thorax. The distance between antennal sockets slightly narrower than interocular space. Fifth maxillary palpus nearly oval, slightly thicker and wider than others (Fig. 3D). Pronotum nearly sub-elliptical, posterior margin slightly straight (Fig. 3C). Tegmina with slightly indistinct veins; radius posterior veins of hind wings slightly indistinct, without transverse veins between M and CuA (Fig. 3E, F). Front femur Type B2 (Fig. 3B). Pulvilli absent, tarsal claws symmetrical.

Male genitalia. Supra-anal plate with sheet-like paraprocts (Fig. 3G). Subgenital plate slightly asymmetrical, the left margin longer than the right and both margins upcurved near the middle; the interstylar margin smooth and curved. Styli medium, length ~ 1/4 of interstylar space (Fig. 3H). L1 small, fan-shaped with a curved and long filamentary structure. L2v slender and curved. L2vm brush-like with a sharp bifurcation. L3 hook-like, stubby with apical part blunt (Fig. 3I). R2 irregular, weakly sclerotized; one of R2 with dense tiny punctuations. R3 slightly curved, sheet-like (Fig. 3J).

Female genitalia. Supra-anal plate nearly symmetrical. Paraprocts broad, not extending to the posterior margin of supra-anal plate. Intercalary sclerite slender, slightly curved. First valve curved. Second valve small, basally fused. Third valve broad. The anterior margin of anterior arch slightly sclerotized, with a horn-shaped protrusion; lateral area with dense tiny punctuation (Fig. 13A, B). Basivalvula irregular, anterior margin curled upward, right lateral deeply concave, lateral area with dense punctuations (Fig. 13A). Spermatheca slightly sclerotized at base. Laterosternal shelf slightly sclerotized, lateral margin slightly curved, with dense spinules at base (Fig. 13C).

Distribution.

China (Hainan).