Neopanorpa diancangshanensis, Wang & Hua, 2018

Wang, Meng & Hua, Bao-Zhen, 2018, High species diversity of the genus Neopanorpa (Mecoptera: Panorpidae) in Yunnan Province, China, Zootaxa 4483 (1): -

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Neopanorpa diancangshanensis

sp. n.

Neopanorpa diancangshanensis   sp. n.

( Figs. 10–11 View FIGURE 10 View FIGURE 11 )

LSID: urn: lsid: act: 8C194F4F-5F7A-44ED-BB89-86B3AD19BC2B

Material examined. Holotype ♂, CHINA: Yunnan: Dali: Diancang Mountain (elev. 2200–2400 m),, leg. Chao Gao & Mei Liu, ME000079 View Materials ( NWAFU)   . Paratypes 2♂ 2♀, same data as holotype, ME000080 View Materials   ME000083 View Materials ( NWAFU); 14♂ 19♀, CHINA: Yunnan: Shangri-La: Tiger Leaping Gorge (elev. 2400 m), 07.viii.2010, leg. Hao Xu, ME View Materials 000084   –ME000114 (NWAFU), 27636–27637 (ZMUG).

Diagnosis. Neopanorpa diancangshanensis   sp. n. can be readily distinguished from its congeners by the following characters: (1) Vertex yellowish brown with longitudinal dark brown marking extending from ocellar triangle to occiput ( Fig. 10c View FIGURE 10 ); (2) rostrum brown; (3) paramere with dorsal process greatly expanded into large subtriangular lobe ( Fig. 11b & c View FIGURE 11 ); (4) female genital plate with well-developed posterior arms in two-thirds total length, proximal half straight, but apical half strongly curved dorsad ( Fig. 11e –g View FIGURE 11 ).

Etymology. The specific name refers to the type locality, Diancang Mountain.

Description. Holotype ( Fig. 10a View FIGURE 10 ).

Head ( Fig. 10c View FIGURE 10 ). Vertex yellowish brown with longitudinal dark brown marking extending from ocellar triangle to occiput. Rostrum brown.

Thorax ( Fig. 10d View FIGURE 10 ). Pronotum dark brown. Mesonotum yellow with brown narrow longitudinal median band extending to scutellum; metanotum with similar pattern.

Wings ( Fig. 10a View FIGURE 10 ). Membrane hyaline with markings grayish brown; R2 bifurcated. In forewings, apical band incomplete, absent posteriorly; pterostigmal band broad at base, forked posteriorly, with apical branch interrupted as a small spot and basal branch interrupted as a large square spot; submedian band reduced to a spot on posterior margin. Hindwings similar to forewings, except for apical branch of pterostigmal band absent.

Abdomen. T1–T5 brown ( Fig. 10a & e View FIGURE 10 ). Male A6 blackish brown narrowly bordered with yellowish brown posteriorly, A7–A8 yellowish brown ( Fig. 10f View FIGURE 10 ). Notal organ expanded at base, elongated as a slender rod, extending caudad slightly less than half length of T4; T4 membranous anteriorly, bearing hirsute, flat post-notal organ ( Fig. 10e & f View FIGURE 10 ).

Male genitalia. Yellowish brown. Hypandrium with a basal stalk and a pair of distal hypovalves, basal stalk half length of hypovalves; hypovalves slender, reaching caudal end of gonocoxite, twisted ventro-mesad and widely divergent at apices, bearing small hypandrial processes subbasally ( Fig. 10g View FIGURE 10 ); in lateral aspect, hypovalve subelliptical apically, with hypandrial process a rounded projection ( Fig. 10i View FIGURE 10 ). Epandrium tapering toward apex, abruptly narrowed and projected laterad at apical third, truncate apically ( Fig. 10h View FIGURE 10 ), bearing a pair of rectangular epandrial lobes ( Fig. 10i View FIGURE 10 ). Gonostylus brown, median tooth blunt; basal lobe cup-like, strongly concave, lining a row of dorsal setae ( Fig. 10j & k View FIGURE 10 ). Ventral valves of aedeagus spatulate, widely divergent; dorsal valves broad and stout, concealed in ventral aspect ( Fig. 11a –c View FIGURE 11 ). Paramere with long basal stalk, and bifurcated distally into ventral branch and dorsal branch; ventral branch short; dorsal branch very short, elongated dorso-laterad ( Fig. 11b View FIGURE 11 ); lateral process broad, curved ventro-mesally, rounded apically, with small process on upper margin near apex ( Fig. 11b View FIGURE 11 ); dorsal process greatly expanded into large lobe, subtriangular, projecting dorsad ( Fig. 11b & c View FIGURE 11 ).

Female (Paratype) ( Fig. 10b View FIGURE 10 ). Similar wing pattern and body coloration as in the male. TI –V blackish brown, A6–A9 dull yellowish brown ( Fig. 10b View FIGURE 10 ). Subgenital plate elliptical with deep V-shaped emargination ( Fig. 11d View FIGURE 11 ). Genital plate with axis broad, extending anteriorly beyond main plate for short length, forked proximally ( Fig. 11e – g View FIGURE 11 ); posterior arms approximately two-thirds of total length, with proximal half straight and apical half conspicuously flexed dorsad in lateral aspect ( Fig. 11f View FIGURE 11 ).

Measurements. Male (n = 10), forewing length 13.58 ± 0.70 mm, width 3.31 ± 0.18 mm; hindwing length 12.47 ± 0.71 mm, width 3.14 ± 0.15 mm. Female (n = 10), forewing length 13.66 ± 0.76 mm, width 3.36 ± 0.16 mm; hindwing length 12.63 ± 0.73 mm, width 3.18 ± 0.17 mm.

Variability. Some individuals with more extensive wing markings. In the forewings, apical band nearly complete with a small hyaline window near inner margin; pterostigmal band with apical branch and basal branch complete; submedian band reduced to spot on posterior margin. Hindwings with apical branch of pterostigmal band sometimes absent.

Remarks. This species resembles N. nielseni Byers, 1965   in wing markings, but is much smaller than the latter, and differs greatly in male genitalia and the female genital plate.