Morinia zhenhang Fu, Xue & Cui sp. nov.

Figs 1, 2, 3, 4, 5, 6, 7, 8, 9, 25, 26

Vernacular name.

(振航墨粉蝇)

Type material.

Holotype • male (HIST), Beihang University campus, Beijing, China, 40°9'4"N, 116°15'55"E, 4. VI. 2025, 20 m, leg. Zhenshuang Huang. Paratypes • 2 male (HIST), same data as holotype; 1 male (SEMCAS), Huanglong, Shaanxi Province, China, 10. VIII. 1983, leg. data absent.

Diagnosis.

Eyes with short, sparse microsetae; parafacial bare; ac s 1 + 1, ia s 0 + 2, pra s 1, sa s 1, kept s 1: 1, prepst s 1, and prepm s 1; basicosta black; ventral hairs of costa not reaching subcostal break; ST 5 with a membranous, semicircular median protuberance between lateral lobes; anterior processes of the basal part of paraphallus present.

Description.

Male. Head (Figs 1, 2). Holoptic, eyes with short, sparse microsetae, upper ommatidia relatively enlarged; frontal vitta dark brown, narrowed medially to a thin line; frons index about 0.02; iv s 1 (weak), povt s 1, pavt s 1; fronto-orbital plate and parafacial black, with silvery-white pruinosity, former with 1–2 rows of black hairs, latter bare; fr s 6, on lower about 3 / 5 of frons; genal groove dark, slightly reddish brown at junction of ptilinal fissure and facial ridge; facial ridge black, with hairs on lower 1 / 3; lunule, face, and facial carina black; facial carina weak; gena anterior part with silvery-white pruinosity, hairs black; gena height about 0.16 × eye height; beard black; antenna black, postpedicel about 2.0 × length of pedicel; arista dark brown, plumose, basal 1 / 4 thickened, dorsal branches more numerous than ventral branches, apical 1 / 3 bare; palpus black.

Thorax (Figs 2, 25, 26). Black, with black hairs; anterior and posterior thoracic spiracles dark; prosternum, anatergite, katatergite, metapleuron, and metasternum bare, remaining pleura with black hairs; suprasquamal ridge bare, anterior, posterior, and tympanic tufts absent.

Chaetotaxy (Figs 2, 25, 26). Ac s 1 + 1, dc s 2 + 3, ia s 0 + 2, pprn s 2, ph s 1: 0, pr s 1, pra s 1, sa s 2, pal s 2, sc s 1: 2; npl s 2; kept s 1: 1, prepst s 1, prepm s 1.

Wings (Fig. 2). Grayish-brown, transparent; costal margin distinctly dark infuscated, A 1 vein slightly infuscated, other veins without distinct infuscation; tegula, and basicosta black; subcostal sclerite brown, with black microsetae; ventral hairs of costa extending beyond the humeral break but not reaching the subcostal break, covering about 1 / 4 of the distance between them; radial node bare dorsally and ventrally; cell r 4 + 5 open, opening narrow, about 0.3 × length of r – m; distal angle (bend of vein M 1) obtusely curved, posterior portion slightly curved toward cell r 4 + 5; dm – m slightly S-shaped; upper calypter dirty white, with dark margin; lower calypter narrow, brownish; halter brownish.

Legs (Fig. 2). Black; fore femur with complete posterodorsal and posteroventral rows of setae, fore tibia with 1 ad s; mid femur with posteroventral row of setae on basal half only, mid tibia with 1 ad s, 1 pd s, 2 p s, and 1 v s; hind femur with anterodorsal setae from base to apex, anteroventral setae from near base to near apex, and posteroventral setae on the basal part, hind tibia with 2 ad s, 1 av s, and 2 pd s.

Abdomen (Figs 2, 8, 25, 26). Ovoid, ground colour black; T 3 without median marginal setae; T 4 with marginal setae; ST 1–5 with black hairs; ST 5 with a membranous, semicircular median protuberance between lateral lobes (Fig. 8).

Terminalia (Figs 3–7, 9). In ventral view, cerci gradually taper from base to apex, with apices not extending beyond those of the surstyli (Fig. 9); surstyli with base slightly wider than apex (Fig. 6); hypandrium nearly equal in length to phallapodeme; pregonite bearing 3 setae (Fig. 8); postgonite with 2 setae (absent in type materials); distal process of paraphallus slightly incurved, its length extending far beyond the lateral hypophallic lobe (Figs 3–6); hypophallic middle piece fused at the junction of the hypophallic lobes; apex of hypophallic middle piece heavily sclerotized and expanding laterally and fused ventrally; acrophallus membrous and thin (Figs 3–6); lateral hypophallic lobes distinctly sclerotized, with many small spines.

Female. Unknown.

Measurements.

Male. Body length 4.6–4.8 mm.

Etymology.

Named for the fly collector Zhen-Shuang Huang (“ Zhen ”, meaning “ inspiring ”) and the location of type specimens, Bei-Hang University (“ Hang ”, meaning “ flying in sky ”).

Distribution.

China (Beijing, Shaanxi).