Dicerapanorpa minshana, 2019

DICERAPANORPA MINSHANA HU & HUA View in CoL SP. NOV.

( FIGS 3L, 4L, 5L, 6L, M, 14, 15)

lsid:zoobank.org:act: B0F01DAE-2C1F-473E-B324- 862C92D1D86A

Type material

Holotype: CHINA: ♂, Laohegou Nature Reserve (32.47°N, 104.73°E), Minshan Mountain , 1800 m, Pingwu County, Sichuan, 6 May 2013, leg. Shuang Xue. GoogleMaps

Paratypes: Thirteen ♂, three ♀, same data as holotype GoogleMaps ; 13 ♂, 16 ♀, same locality as holotype, 28 May 2018, leg. Kai Gao. GoogleMaps

Etymology

The specific epithet refers to the type locality, Minshan Mountain.

Diagnosis

This new species can be differentiated readily from D. magna by the following characters: (1) male genital bulb spherical (cf. long and elliptical); (2) basal branch of male paramere short, hook-shaped (cf. relatively long); and (3) main plate of female medigynium nearly rectangular distally, constricted mesally and smoothly curved basally (cf. subtriangular or constricted rapidly at base).

Description

H e a d: H e a d y e l l o w. Ve r t e x y e l l o w i s h. O c e l l a r triangle black. Antenna blackish brown. Rostrum yellowish, without black lateral longitudinal stripes ( Fig. 14A, B).

Thorax: Pro-, meso- and metanotum yellow, bearing several setae anteriorly and two black longitudinal stripes laterally. Pleura light yellow. Legs yellowish brown, with tarsomeres gradually darkened toward apex ( Fig. 14A, B).

Wings: Male holotype: forewing length 16.5 mm, width 4.5 mm, yellowish, apical band reduced; pterostigma band incomplete and dark brown, with reduced basal and distal branches; basal band extending from vein R s to CuP, other markings indistinct; hindwing length 15.2 mm, width 4.3 mm, similar to forewing, but with more degenerated markings ( Fig. 14A). Female: forewing length 15.5–17.6 mm, width 4.1–4.9 mm; hindwing length 14.1–16.4 mm, width 4.0– 4.7 mm; similar to male in general appearance ( Fig. 14B).

Abdomen: T1–T5 yellowish, with two black lateral longitudinal stripes ( Fig. 14A, B). Male: notal organ developed, covered with numerous black setae posteriorly ( Fig. 4L); T6 brownish yellow, bearing a pair of digitate anal horns posteriorly ( Figs 3L, 14A); A7 and A8 yellowish brown, elongate, constricted at basal half and dilated at distal half, but A8 much thinner than A7 distally ( Fig. 14A). Female: abdominal segments gradually narrowed caudally ( Fig. 14B).

Male genitalia: Genital bulb brownish yellow, spherical. Epandrium gradually narrowing toward apex, with a rounded, U-shaped terminal emargination ( Fig. 14C). Hypovalve slender, bearing long bristles along inner margin, nearly reaching apex of gonocoxite ( Figs 5L, 14D). Gonostylus shorter than gonocoxite, with a well-developed trapezoidal basal process and a small sharp subtriangular median tooth. Parameres trifurcate: basal branch considerably short, hook-shaped; mesal and lateral branches curved inward, reaching or exceeding apex of gonocoxite. Ventral valves of aedeagus short; dorsal valves broadened and elongate, nearly reaching apex of gonocoxite ( Figs 5L, 14D, 15A, B).

Female genitalia: Subgenital plate ovoid, terminating in a ligulate process, covered with long setae caudally ( Figs 14E, 15C). Medigynium strongly sclerotized, with main plate rectangular distally, gradually constricted mesally and rounded basally. Posterior arms parallel and short, approximately half the length of main plate ( Figs 6L, M, 14F).