Dasymallomyia curvispina Zhang, Hong, Zhang & Yang, 2026, sp. nov.

Dasymallomyia curvispina sp. nov. Figs 4, 5 Material examined. Holotype: China – Yunnan Prov. • ♂; Gongshan, Dulongjiang; 22 May 2007; Xingyue Liu (light trap); CAU. Diagnosis. Yellowish species. Prescutum and presutural scutum polished, with one brown median stripe and two pairs of brown lateral spots on prescutum, and with two large dark spots on scutal lobe. Wing unpatterned. Abdomen mainly brown. Outer gonostylus blade-shaped, sightly straight. Inner gonostylus dark, distinctly bifid; posterior branch of inner gonostylus long spine-like, with finger-like process near posterior branch. Description. Male. Body length 5.5 mm, wing length 6.2–6.4 mm, antenna length 1.7–1.9 mm. Head (Fig. 4 A, C). Mostly brownish yellow with pale gray microtrichia. Antenna mostly brownish yellow except scape brown. Scape cylindrical, nearly twice longer than wide; flagellum 14 - segmented with long brown verticils, about 2–3 times as long as segment; flagellomeres oval. Proboscis brow with brown setae; palpi brown with brown setae. Thorax (Fig. 4 A, C). General yellow, distinctly polished on prescutum and presutural scutum. Pronotum brownish yellow, with a pale-yellow area posteriorly. Prescutum and presutural scutum yellow with a brown median stripe and two pairs of brown spots near median stripe; median stripe almost of same width in whole length, not reaching transverse suture; anterior lateral spots small, darker, nearly oval, separated from posterior spots. Scutum yellow, with two large subtriangular brown spots on each scutal lobe, narrowly separated from or partly fused with each other, posterior one distinctly smaller than anterior one. Scutellum brown with yellow posterior part. Mediotergite brown. Pleura brown to brownish on propleuron, anepisternum, anepimeron, dorsal half of katepisternum, ventral half of meron and laterotergite. Setae on thorax brownish to yellow. Legs mostly yellow; fore and mid coxae brownish at base; femora with inconspicuous subterminal brownish ring, slightly shorter than wide (Fig. 4 B); tips of tibiae and tarsi brownish. Setae on legs brown. Wing (Fig. 3 D) yellowish hyaline, unpatterned. Veins mostly brownish, paler on Sc. Venation: R 2 ending at fork of R 3 + 4; R 3 about 1 / 3 as long as R 4, R 4 decurved at wing margin, cell m 1 + 2 about twice as long as its petiole. Halter 0.8–0.9 mm long, pale yellow. Abdomen (Fig. 4 A). Tergites brown with brownish-yellow posterior margin; sternites brownish yellow. Setae on abdomen brownish yellow. Hypopygium (Figs 4 E, 4 F, 5). Posterior margin of tergite 9 convex (Figs 4 E, 5 A. Sternite 9 medially with rounded lobe covered with setae (Figs 4 F, 5 B). Gonocoxite distinctly longer than tergite 9, broad on basal part, rounded at tip (Figs 4 E, 4 F, 5 A, 5 B). Outer gonostylus blade-shaped, sightly straight, darkened at tip (Fig. 5 D). Inner gonostylus strongly bifid (Fig. 5 C); anterior branch with sclerotized apex curved outward; posterior branch long spine-like, slightly sigmoid, a triangular process present near posterior branch. Aedeagus (Fig. 5 E, F) conical in dorsal view, with tip elongated, strongly directed posteroventrally. Female. Unknown. Distribution. China, Yunnan. Etymology. The specific name refers to the curved posterior branch of inner gonostylus. Remarks. This species is similar to D. tanyphallus Alexander, 1964 (India, Sikkim) in having an elongate aedeagus. However, it can be distinguished by the following features: in D. curvispina sp. nov., the posterior branch of the inner gonostylus is sigmoid, and the elongated tip of the aedeagus is relatively broad; whereas in D. tanyphallus, the posterior branch is straight and the elongated tip of the aedeagus is narrow, nearly needle-shaped (Alexander 1964: fig. 18).