Ourapteryx qinlingensis, Cheng & Wen & Han, 2025

Ourapteryx qinlingensis sp. nov.

Corresponding to sp 6 in Cheng et al. (2025b).

Chinese common name: Þĸƪkš

( Figs 13–16 View FIGURES 1–20 , 39–40 View FIGURES 29–44 , 55, 59 View FIGURES 45–60 )

Material examined. Holotype, ♂, China: Shaanxi ( IZCAS): Ningshan, Huoditang , 1538 m, 11–15.VII.2012, leg. Nan JIANG, slide no. Geom-2939, IOZ LEP M 7961 . Paratypes. China : Shaanxi ( IZCAS): 1♀, same locality, same collector, slide no. Geom-2940, IOZ LEP M 7960; 1♂, Taibai, Huangbaiyuan, 1323 m, leg. Jing LI, 17–18.VII.2012 , IOZ LEP M 7991; Ningshan, Guanghuojie , 1081 m, leg. Shuxian LIU, 26–27.VII.2014 .

Diagnosis. O. qinlingensis sp. nov. ( Figs 13–16 View FIGURES 1–20 , 39–40 View FIGURES 29–44 , 55, 59 View FIGURES 45–60 ), O. tachengensis sp. nov. ( Figs 9–12 View FIGURES 1–20 , 37–38 View FIGURES 29–44 , 54, 58 View FIGURES 45–60 ) and O. pallidula Inoue, 1985 ( Figs 17–20 View FIGURES 1–20 , 41–44 View FIGURES 29–44 , 56, 60 View FIGURES 45–60 ) are externally similar to each other, among them, the body size and wingspan of O. pallidula is the smallest; the tail length of O. tachengensis sp. nov. is the shortest. O. qinlingensis sp. nov. is distinctive in the almost parallel antemedial and postmedial lines, however, in O. tachengensis sp. nov. and O. pallidula , the two lines approach each other on inner margin. In the male genitalia, O. tachengensis sp. nov. can be differentiated by the broader valva and the thickest furca. The other two species are also can by distinguished by the furca: the tip of the furca of O. qinlingensis sp. nov. is sharp; the furca of O. pallidula is moderately long, but sometimes not reaching the median process of gnathos. The female genitalia of O. qinlingensis sp. nov. are significantly larger than the other two species, possessing the thickest ductus bursae along with a smaller central disc, a broader frill, and short spines. In contrast, O. pallidula has the largest central disc; while in O. tachengensis sp. nov., the central disc is the smallest. In addition, O. tachengensis sp. nov. possesses a slender ductus bursae (approximately one-third the diameter of the corpus bursae).

Description ( Figs 13–16 View FIGURES 1–20 ). Head. Antenna white dorsally. Frons greyish brown on upper part, gradually paler downward, nearly white at lower margin. Labial palpus with lateral side greyish yellow-brown, dorsal and ventral margins white. Vertex white.

Thorax. Patagia, tegulae, and thoracic dorsum white. Legs white. Wings. Ground color dull white; lines grey. Forewing length: ♂ 25–26 mm. Forewing moderately broad and scattered with grey striations throughout; antemedial and postmedial lines nearly parallel; discal spot bar-like, not reaching costa; terminal line extremely thin; fringes white; outer margin nearly straight. Hind wing, postmedial line originating below upper angle of discal cell (at divergence of Rs and M 1), extending obliquely outward to near distal end of CuA 2; grey striations scattered outside postmedial line; sparse black scales diffused along both sides of vein 2A near anal angle; fringes mostly yellow to pale yellow, white at apex, M 1 end, tip of tail, and anal angle; outer margin straight from apex to above vein M 1, slightly convex on ends of M-veins; tail acutely pointed, length about 3 mm, two spots present at tail base: anterior spot orange-red encircled by black border, posterior spot black, indistinct inside; terminal line absent. Underside. White; antemedial and postmedial lines, discal spot of forewing, and postmedial line of hind wing discernible.

Abdomen. Abdomen white with setal comb on male third sternite.

Male genitalia ( Figs 39–40 View FIGURES 29–44 ). Uncus spine-like with blunt apex, base expanded into nearly circular lateral projections. Socii minute and membranous. Gnathos with median process semicircular. Furca developed on right side, robust, apex pointed with a small cluster of spines, sinuate (inverted ‘S’-shaped), reaching above costal base. Saccus rounded. Valva simple; costa more sclerotized, slightly wider medially, near apex with downward-projecting long setae; outside area membranous. Sacculus slightly convex medially and near base. Aedeagus shape, cornuti and spinose patch similar to O. tachengensis (long spines falled off in illustration), but smaller (aedeagus length 2.7 mm vs. O. tachengensis 3.3 mm).

Female genitalia ( Fig. 55 View FIGURES 45–60 ). Posterior apophyses about four times of anterior apophyses in length. Lamella postvaginalis rounded, margins slightly folded. Ductus bursae short and thick, bent at anterior one third; colliculum located at posterior part of ductus bursae, width broader than length. Corpus bursae rounded. Signum circular, midventral; width of frill narrower at anterior side than posterior side, disc about 2/5 of signum diameter; frill strongly sclerotized, evenly decorated with spines in different length, the longest about 1/4 of signum diameter.

Distribution. China ( Shaanxi).

Etymology. The specific name is named after the type locality.