Meleonoma ovaliuncatus Zhu & Wang, 2026, sp. nov.

Meleonoma ovaliuncatus sp. nov. Figs 6, 19, 29 Type material. Holotype: China • ♂; Xizang Autonomous Region [Tibet], Motuo County [Mêdog], Yadong Village; 29.33°N, 95.34°E; 833 m a. s. l.; 16 VIII. 2017; Mujie Qi & Xiaofei Yang leg.; slide no. ZXJ 19513, in NKU. Paratypes: • 24 ♂ 10 ♀; same data as for holotype; slide nos. ZXJ 19116 ♂, ZXJ 19117 ♀, ZXJ 19619 ♀, in NKU 17 ♂ 1 ♀; 12–15 VIII. 2017; other data same as for holotype; slide nos. ZXJ 19119 ♂, ZXJ 19515 ♂, in NKU 8 ♂; • Xizang Autonomous Region [Tibet], Motuo County [Mêdog], Dexing Village; 833 m a. s. l.; 18 VIII. 2017; Mujie Qi & Xiaofei Yang leg.; slide no. ZXJ 19118, in NKU. Diagnosis. The new species is similar to M. gei (Wang, 2003) in the forewing pattern. It can be distinguished in the male genitalia by the ovate uncus, the costal part of the valva with a subrectangular process at base and the aedeagus with several sclerites distally. In M. gei, the uncus is rectangular, the costal part of the valva lacks a process at base and the aedeagus has a pile of spines instead of sclerites distally (Wang 2003: 210, fig. 23). Description. Forewing length 5.0–6.0 mm (Fig. 6). Head black, yellow on frons. Labial palpus yellow; first segment black on outer surface; second segment with scattered black scales in distal 1 / 2, forming a black ring at apex; third segment black except yellow at base and at apex on dorsal surface. Antenna black except scape yellow on posterior margin. Thorax and tegula black. Forewing with costal margin arched, apex rounded; ground colour black; median fascia yellow, extending from before middle of costal margin obliquely outward to above distal 1 / 3 of fold, widened posteriorly; distal spot small, yellow, placed at distal 1 / 4; plical, discal and discocellular spots black, not clearly distinguished from ground colour; fringe black. Hindwing and fringe dark grey. Legs yellow, with exceptions on ventral surface: coxa of foreleg with scattered dark brown scales, femur dark brown except yellow apically, tibia dark brown except yellow at middle and at apex, tarsus dark brown except yellow at apices of basal two tarsomeres, femora of mid- and hindlegs with scattered dark brown scales, tibiae of mid- and hindlegs dark brown except yellow apically, tarsus of midleg dark brown except yellow at apices of basal two and apical one tarsomeres, tarsus of hindleg with basal four tarsomeres dark brown except yellow at apices. Abdomen: Male genitalia (Fig. 19). Uncus ovate, setose on dorsal surface. Tegumen narrowed medially; lateral arm uniform, blunt at apex. Costal part of valva foliaceous, roundly dilated, with fine hairs distally, with a subrectangular process at base, extending ventrad; apex with a spine above ventral angle; ventral margin with basal 2 / 5 straight, distal 3 / 5 gently produced; costal band with a triangular process near base, followed by a quadrate process; transtilla short, narrowed extending toward middle, pointed at apex. Sacculus subtrapezoidal, wide at base, narrowed from base to before apex; apex produced to a clavate process dorsally, slightly concave below it, forming an indistinct median process, rounded; ventral margin folded dorsad, with a triangular process apically, pointed at apex. Saccus elongate, clavate, ~ 2 × length of uncus, rounded at apex. Juxta slender, U-shaped. Aedeagus slightly longer than costal part of valva, tubular in basal 1 / 2, sharply narrowed at beyond middle, with several sclerites distally; cornutus clavate, placed at middle of aedeagus. Female genitalia (Fig. 29). Papillae anales rectangular, setose on dorsal surface. Apophyses posteriores ~ 2.5 × length of apophyses anteriores. Eighth sternal plate deeply concave medially and line with long setae on posterior margin, distinctly produced medially on anterior margin. Lamella antevaginalis being two subovate plates, distributed on both sides of ductus bursae. Ductus bursae sclerotised in posterior 1 / 2, membranous in anterior 1 / 2. Corpus bursae ovate; appendix bursae membranous, arising from posterior part of corpus bursae; signum subrounded, dentate. Etymology. The specific epithet is derived from the Latin oval - and the term uncus, referring to the shape of the uncus. Distribution. China (Xizang Autonomous Region [Tibet]).