Panorpa uncinata sp. nov.

Fig. 22

Diagnosis.

The new species can be recognized by the following features: (1) forewing with broad apical band occasionally bearing two inner hyaline spots; pterostigmal band with broad basal branch and thin apical branch; marginal spot narrow or reduced; basal band broad; basal spots extremely reduced and faint (Fig. 22A-B); (2) meso- and metanotum black, with narrow yellow brown mesal stripe (Fig. 22A-B); (3) gonocoxites with approximately four stout setae on inner apex ventrally (Fig. 22F); (4) paramere intensively curved, hook-like on apical half, reaching two-thirds of gonocoxite (Fig. 22G); (5) main plate of medigynium broad; a pair of lateral basal plates extended from base to middle of main plate; extended beyond main plate for half of its length anteriorly (Fig. 22K-L).

Etymology.

The specific name is derived from the Latin Panorpa uncinata (hooked), referring to the hooked parameres.

Material examined.

Holotype: CHINA - Shanxi Prov. • ♂; Yuncheng, Shunwangping; 2000 m a.s.l.; 30 Jun. 2019; Kai Gao leg. Paratypes: CHINA - Shanxi Prov. • 1♀; same data as for holotype . • 1♂, 2♀♀; Linfen, Anziping Forest Farm; 1800 m a.s.l.; 1 Jul. 2019; Kai Gao leg. • 2♂♂, 2♀♀; Huozhou, Qiliyu; 2 Jul. 2019; Kai Gao leg. - Shaanxi Prov. • 1♀; Ankang, Zhenping; 18 Aug. 2018; Lin Lyu leg. - Henan Prov. • 2♂♂; Jiyuan, Wangwushan; 1700 m a.s.l.; 29 May 2019; Kai Gao leg. - Hubei Prov. • 1♂; Shennongjia, Yemahe; 1600 m a.s.l.; 29 Jul. 2016; Ji-Shen Wang leg. • 1♂; Badong, Tiechanghuang; 8 Jun. 2016; Ji-Shen Wang leg.

Measurements. Male: FL = 12.1-12.9 mm, FW = 3.2-3.4 mm; HL = 10.9-11.5 mm, HW = 3.1-3.3 mm. Female: FL = 12.1-13.6 mm, FW = 3.1-3.4 mm; HL = 11.0- 12.3 mm, HW = 2.9-3.2 mm.

Description.

Male: Head (Fig. 22A, C): Frons, vertex and occiput yellowish brown. Black band through ocellar triangle not extending to compound eyes. Rostrum yellow, with labrum dark brown. Maxillary and labial palps mostly brown, with distal segments dark brown. Antennal scape yellowish brown basally and dark brown apically; flagellum dark brown, filiform, with 33-38 flagellomeres. Thorax (Fig. 22A, D): Pronotum black, with 10-12 stout setae along anterior margin. Meso- and metanotum black, with narrower yellow brown mesal stripe; scutella yellow brown. Pleura pale yellow. Legs light yellowish brown, with distal tarsomere blackish. Wings (Fig. 22A): Membrane hyaline, with markings dark brown. Forewing with apical band broad, bearing one or two hyaline spots, smaller one between R2b and R3, and larger one between R5 and M2; pterostigmal band complete, with basal branch approximately twice as wide as apical branch; marginal spot variable: slender; split into two spots, not extended to M; or greatly reduced in some individuals; basal band broad; basal spots greatly reduced. Hindwing similar to forewing in coloration and pattern, but with marginal and basal spots much reduced, apical band usually bearing one hyaline spot in posterior portion. Abdomen (Fig. 22A, D): T2-T5 black brown to black. Notal organ of T3 flat triangular, covering acute postnotal organ on T4. A6 with basal two-thirds black, distal third yellow, projected and setose on dorsal apex. A7 and A8 uniformly yellow, slightly constricted basally. Genitalia (Fig. 22E-I): Genital bulb elliptical, yellow. Epandrium broad, with deep terminal emargination, bearing numerous setae. Cercus clavate, yellow brown basally and dark brown distally. Hypandrium with shortened basal stalk and pair of hypovalves; hypovalves broad, with basal half narrower, extending to three-quarters length of gonocoxites, bearing row of long bristles along inner margin. Gonocoxite mostly with four stout setae on inner apex ventrally. Gonostylus with obtuse triangular median tooth and large basal cup. Parameres slender, crossed mesally, intensively curved, hook-like, reaching two-thirds length of gonocoxites. Dorsal valves of aedeagus elongate, each with enlarged dorsal process on subapical portion dorsally. Ventral valves shortened. Lateral processes distinct, triangular. - Female: Similar to male in wing markings (Fig. 22B). Genitalia (Fig. 22J-L): Subgenital plate ligulate, narrow basally, broadest medially, and narrowed towards apex, with shallow V-shaped terminal emargination, bearing long setae on caudal and lateral margins. Medigynium with well-developed broad main plate. Pair of lateral basal plates extended from base to middle of main plate. Posterior arm one-third length of main plate, forming broad U-shaped emargination. Axis bifurcated, elongated, extended anteriorly beyond main plate for half of its length, with posterior slightly extruded.

Distribution.

China: Henan, Hubei, Shaanxi, Shanxi.

Remarks.

This new species resembles P. yangi, especially in the intensively curved, hook-like parameres, but can be readily differentiated from the latter by: (1) meso- and metanotum black, bearing a narrow (cf. very broad) yellow mesal stripe; (2) basal spots extremely reduced and faint (cf. large and distinct).