Pseudognaptorina migana X.-M. Li, 2025

Pseudognaptorina migana X.-M. Li sp. nov.

Type materials.

Holotype: China • ♂ ( MHBU HBU (E) 339879 ): Miga Mountain pass , Gongbogyamda County, Xizang / 29°84.105'N, 92°33.422'E / Alt. 4775 m / 2023-VII-18 / Xiu-Min Li & Tong-Yang Guo leg. Paratypes: China • 10 ♂♂, 20 ♀♀ ( MHBU HBU (E) 339880 –339909): same data as holotype ; China • 1 ♂, 1 ♀ ( MHBU HBU (E) 339910 –339911): Miga pass , Gongbogyamda County, Xizang / 29°84.105'N, 92°33.422'E / Alt. 4750 m / 2019-VII-26 / Xiu-Min Li & Zhao Pan leg.

Description.

Male (Fig. 7 View Figure 7 , 8 A – C View Figure 8 ). Body length 10.5–11.3 mm, width 4.9–5.2 mm; shiny, black or brownish; antennae, palpi, and tarsi brown.

Head (Fig. 7 A, B View Figure 7 ). Anterior margin of clypeus slightly sinuate. Head widest at eye level. Lateral margin of head with pair of projections between antennal base and oculus, brownish red. Genal margin arcuately converging before eyes. Eyes barely protruding beyond contour of head. Vertex flat or slightly convex, with uniform punctures. Antennae (Fig. 7 D View Figure 7 ) slender and long, reaching pronotal base when posteriorly extended, antennomere III very long, 2.4 times as long as antennomeres II, antennomeres VIII – X oval, XI spindle-shaped. Length (width) ratio of antennomeres II – XI as follows: 11.8 (10.0): 28.1 (10.0): 14.5 (10.0): 14.5 (10.0): 14.5 (10.0): 14.5 (10.0): 13.3 (12.0): 13.3 (13.0): 13.3 (14.0): 19.5 (14.0).

Prothorax. Pronotum (Fig. 7 C View Figure 7 ) transverse, 1.34 times as wide as long, widest in middle, 1.71 times as wide as head. Ratio of width on anterior margin to its maximum width and posterior margin 0.52: 1.00: 0.92. Lateral margins of pronotum arcuately narrowing to anterior margin, bordered along entire length; posterior margin straight; anterior margin slightly emarginate; anterior angles widely, obtusely angled; posterior angles almost rectangular. Surface of pronotum slightly convex between lateral margins, covered with fine, dense punctation. Hypomera covered shallow, longitudinal wrinkles and granules. Prosternum before procoxae gently sloping. Prosternal process gently sloping behind procoxae, forming obtuse projection.

Pterothorax. Elytra oblong-oval and convex, 1.38–1.40 times as long as wide, 1.35–1.37 times as wide as pronotum, widest in apical third. Dorsal surface of elytra passing into outer (deflexed) surface without traces of humeral carina. Outer margin of epipleura visible in dorsal view at basal third and apex. Surface of elytra with dense, rather smooth punctation and wrinkles almost vanishing on apical declivity.

Legs (Fig. 7 E – J View Figure 7 ). Femora and tibiae moderately thickened. Ratio of length (width) pro-, meso-, and metatibiae: 56.2 (9.1): 55.8 (9.5): 94.1 (11.0). Protibiae straight with shorter spurs, inner surface of protibiae slightly widened at basal third; mesotibiae slightly arcuately curved; metatibiae arcuately curved, narrow. Ventral surface of protarsomeres I – III with hairy brush; ventral surface of mesotarsomeres I – II with hairy brush. Ratio of length (width) of metatarsomeres I – IV: 29.9 (10.0): 19.5 (10.0): 17.1 (10.0): 29.4 (7.9).

Abdomen. Abdominal ventrites rather sparsely covered with minute, pale, recumbent setae.

Aedeagus (Fig. 7 K – O View Figure 7 ). Length of aedeagus 2.34 mm, width 0.46 mm; length of parameres 0.89 mm, width 0.35 mm. Slightly curved to ventral side apically in lateral view. Parameres strongly elongate, widest at base, regularly narrowing towards apex; outer margins slightly curved to ventral side apically in lateral view. Spiculum gastrale as in Fig. 7 K View Figure 7 . Posterior margin of abdominal sternite VIII sinuate (Fig. 7 O View Figure 7 ).

Female (Figs 8 A, B View Figure 8 , 9 D – F View Figure 9 ). Body larger and wider than male, length 12.1–12.7 mm, width 6.0– 6.4 mm. Antennae shorter than male, not posteriorly reaching base of pronotum when posteriorly extended. Pronotum 1.5 times as wide as long, widest in middle, lateral margins subparallel from base to middle and narrowing toward anterior angles curved, sides of pronotum slightly convex; 1.73 times as wide as head; with very dense punctation. Elytra oval, more convex than male, 1.37 times as long as wide. Protibial spurs with small, pointed at apex. Distal gonocoxite (Fig. 8 A View Figure 8 ) rounded apically, densely covered with setae; spiculum ventrale as in Fig. 8 B View Figure 8 .

Diagnosis.

This new species is morphologically similar to P. himalayana , but can be distinguished from it by the following male character states: pronotum 1.29 times as wide as long, lateral margins of pronotum regularly arcuate (pronotum 1.34 times as wide as long, lateral margins arcuately narrowed at basal 2 / 3 in P. himalayana ); mesotarsomeres I – II with hair brushes, mesotarsomere III with small hairy tuft (ventral surface of mesotarsomeres I – III with hair brushes in P. himalayana ); parameres strongly elongate, widest at base, regularly narrowing towards apex, more acute from basal half to apex (parameres moderately elongate, regularly narrowing towards apex, more obtuse from basal half to apex in P. himalayana ).

Etymology.

This species is named after the type locality, Miga Pass.

Distribution.

Gongbogyamda County, Xizang, China.