Panorpa curva Carpenter, 1938

Fig. 4

Panorpa curva Carpenter, 1938: 269, figs 1 & 8. Type locality: "O-Er, 26 miles of Li Fan" [now Lixian], “Szechwan” [now Sichuan], China; Cheng, 1957: 43, figs 52-53; Wang & Hua, 2018: 323, figs 5-113-1-5-113-2.

Diagnosis.

This species can be readily recognized by the following characters: (1) forewing apical band broad, with small hyaline spot posteriorly; pterostigmal band with basal branch broad and apical branch mostly absent; basal band complete, broad; marginal and basal spots absent (Fig. 4A-B); (2) meso- and metanotum black, with prominent pale yellow mesal stripe (Fig. 4A-B); in males, (3) gonocoxites with elongated process, bearing short stout setae on inner margin (Fig. 4E); (4) parameres elongate, crossed mesally, and twisted in S-shape (Fig. 4F); and in females; (5) medigynium with main plate rectangular, three times as long as wide, with pair of large lateral basal plates near middle portion; axis extending beyond main plate for two-fifths its length anteriorly (Fig. 4I-J).

Material examined.

CHINA - Sichuan Prov. • 6♂♂, 7♀♀; Wolong; 31°02′12″N, 103°12′35″E; 1940-2060 m a.s.l.; 9-10 Aug. 2018; Ning Li, Lu Liu & Lu-Yao Yang leg. • 5♂♂, 7♀♀; Pingwu, Laohegou; 1800 m a.s.l.; 25 May 2018; Kai Gao leg. • 1♂; Heishui, Dagubingchuan; 2700 m a.s.l.; 6 Jun. 2019; Kai Gao leg. • 1♂; Lixian, Bipenggou; 2600 m a.s.l.; 6 Jun. 2019; Kai Gao leg. - Shaanxi Prov. • 1♀; Baoji, Fengxian, Tiantaishan Forest Park; 1 Jun. 2015; Ji-Shen Wang & Lu Jiang leg. • 1♂, 1♀; Baoji, Fengxian, Tongtianhe Forest Park; 34°11′03″N, 106°40′15″E; 10 Jun. 2015; Lu Jiang leg. • 15♂♂, 21♀♀; Ningshan, Huoditang; 5 May-13 Jul. 2019; Xin Tong & Peng-Yang Wang leg.

Measurements.

Male: FL = 11.4-13.9 mm, FW = 2.9-3.5 mm; HL = 10.3-12.0 mm, HW = 2.7-3.2 mm. Female: FL = 11.3-14.1 mm, FW = 3.0-3.6 mm; HL = 10.3-12.1 mm, HW = 2.9-3.3 mm.

Description.

Female: Head (Fig. 4B): Frons, vertex, and occiput yellowish brown. Black transverse band passing through ocellar triangle, extending to inner margins of compound eyes. Rostrum yellow, slender, with labrum dark brown. Maxillary and labial palps mostly pale brown, with distal segments dark brown. Antennal scape yellowish brown; pedicel dark yellowish brown; flagellum blackish brown, filiform. Thorax (Fig. 4B): Pronotum black, with 12-16 setae along anterior margin. Meso- and metanotum black, with pale yellow mesal stripe; scutella totally pale yellow. Pleura yellowish; legs yellowish brown, with distal tarsomere blackish. Wings (Fig. 4B): Wing membrane hyaline, with black brown markings. In forewing, broad apical band with small hyaline spot posteriorly; pterostigmal band with broad basal branch, apical branch absent; broad basal band complete; marginal and basal spots almost absent. Hindwing similar to forewing, with relatively reduced markings; basal band usually narrower and incomplete. Abdomen (Fig. 4B): T2-T6 black. A7-A10 brown. Genitalia (Fig. 4H-J): Subgenital plate ligulate, with V-shaped distal emargination, bearing long setae on distal quarter. Medigynium with rectangular main plate, three times as long as wide; pair of large wing-like lateral basal plates near middle portion; paired posterior arms forming broad U-shaped emargination; axis slightly extruded posteriorly, extending beyond main plate for two-fifths of its length anteriorly.

Distribution.

China: Shaanxi, Sichuan.

Remarks.

This species resembles P. davidi in appearance, but can be readily identified by complete basal band (cf. split into two spots) in forewing and elongated process on gonocoxites with the base 1.5 times (cf. twice) as wide as the apex.