Ziminellia yunnanensis Xue & Zhang, 2025

Ziminellia yunnanensis Xue & Zhang , sp. nov.

( Figs 9–16 View FIGURES 9–10 View FIGURES 11–16 )

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Diagnosis. Frons about 0.7 times as wide as postpedicel.Thoracic dorsum with 2+4 dorsocentral setae; 1 intrapostalar seta. Wing base with dark clouds, subcosta bow-shaped, R 1 bare, upper calypter brownish, lower calypter dark brown, enlarged posteriorly and extending below base of scutellum. Mid tibia with a row of anterodorsal setae, 2 posteroventral setae; hind femur with a completely row of anteroventral setae, apical 3–4 longer. Abdomen without pruinose vitta and patches.

Description. Body length 5.2–5.6 mm.

Male. Head ( Figs 11–12 View FIGURES 11–16 ). Eye with minute and scattered hairs. Fronto-orbital plate adjacent, frontal vitta about 1/3 as wide as anterior ocellus at the narrowest point. Frons about 0.7 times as wide as postpedicel, 6–7 pairs of frontal setae on lower 3/5 of frons, 2 pairs of proclinate orbital setae; fronto-orbital plate black; parafacial brownish black, outer margin with white gray pruinosity. Parafacial wider than frons, about 0.6 times as wide as postpedicel. Gena black, with gray pruinosity, slightly shiny, genal hairs and postgena hairs all black, gena height about 1/4 of eye height. Antenna black, postpedicel 2.6–2.7 times as long as wide, 1.9–2.0 times as long as pedicel; arista plumose, nearly straight, the longest aristal hairs 1.5–1.7 times of postpedicel width. Vibrissal angle slightly ahead of frontal angle in profile. Prementum black, about 2.5 times as long as wide; palpus brownish black, about 1.4 times of prementum length, labellum large.

Thorax ( Figs 9–10 View FIGURES 9–10 ). Black in ground color, covered with sparse pruinosity; scutum in the middle with one faint pruinose vitta, not reaching the suture, both sides with narrow longitudinal pruinose vittae, wider than the inner black vitta; postpronotal lobe with inconspicuous sparse pruinosity. 4 postpronotal setae, 3 basal setae nearly in a straight line and the inner one shorter; 1 posthumeral seta; 1+2 acrostichal setae; 2+4 dorsocentral setae; 1 postsutural intra-alar seta; 1 prealar seta; 2 supra-alar setae; 1 intrapostalar seta. Scutellum with three pairs of marginal setae, apical scutellar seta about as long as basal scutellar seta, 1 short prebasal scutellar seta and 2 latero-discal setae, both sides of scutellum slightly with gray pruinosity and setulae. Notopleuron setulose; prosternum setulose; proepisternum bare; anepisternum setulose; 3 katepisternal setae; anepimeron setulose, katepimeron anteriorly setulose; meron bare; anterior and posterior spiracles dark brown, posterior spiracle embed a few prostrate black setae.

Wing ( Fig. 10 View FIGURES 9–10 ) pale brown, dark-clouded along crossveins r-m and dm-cu; tegula and basicosta black; subcostal sclerite bare, vein subcosta bow-shaped; basal portion of stem-vein bare dorsally and setulose ventrally; apical portion of stem-vein bare dorsally and ventrally; R 1 bare; R 4+5 with 4 black setulae dorsally and 1 ventrally; vein M bent forward, crossvein dm-cu nearly straight. Suprasquamal ridge bare. Upper calypter brownish with paler border and fringe, and distal 1/3 opaque white, lower calypter dark brown, enlarged posteriorly and extending below base of scutellum; halter yellowish on apical portion and dark brown on basal portion.

Legs dark brown ( Fig. 10 View FIGURES 9–10 ). Fore femur with complete rows of posterodorsal and posteroventral setae, the latter not thick and long; row of anteroventral setae absent; fore tibia without anterodorsal, anteroventral, posterodorsal, posteroventral and posterior setae. Mid femur with 2–3 rows of anteroventral setulae and a row of posteroventral setae, 3 preapical posterior setae, without a preapical dorsal protuberance bearing a set of setulae; mid tibia with 2 posteroventral and 3 posterior setae. Hind femur with a complete row of anteroventral setae, apical 3–4 longer, posteroventral seta absent, with a row of anterodorsal setae (about 14 setae), 1 preapical dorsal seta; hind tibia with a row of 5–7 anteroventral setae on apical half and seta about 1/4 of hind tibia length, 1 anterodorsal seta, 1 posterodorsal seta, with pale brown preapical setae on posteroventral surface, with 2–3 rows of long setulae and slightly longer than tibial width; hind tarsi with erect brownish yellow brush-like hairs ventrally in its entire length, which about as long as tarsal width.

Abdomen. Round-shaped in dorsal view, black in ground-colour, with sparse grey pruinosity, 1st sternite setulose.

Terminalia ( Figs 13–16 View FIGURES 11–16 ). Sternite 5 nearly square, its lateral lobe slightly long and pointed apically. Cerci with 2 pairs of processes on lower margin, the inner lobe subulate, apical part sclerotized, the outer lobe semilunar; cerci without spines in internal surface, but with two small spines in lower margin. Surstylus with some setae laterally. Epiphallus elongate, enlarged at apex; distiphallus elongate and membranous; pregonite conspicuously elongate, as long as combined length of basiphallus and distiphallus, apparently bare (perhaps, the setulae have fallen); and postgonite slender and bare.

Female. Unknown.

Type material. Holotype ♂, CHINA, Ailao Mountains, 23.94°N, 101.34°E, elev. 870–1730 m, Jingdong- Zhenyuan County, Yunnan, 26–31.VI.2018, C. T. Zhang ( SYNU) GoogleMaps . Paratype. 1 ♂, same as holotype.

Etymology. The specific name is taken from the type locality, Yunnan, China.

Distribution. China ( Yunnan).

Remarks. The new species is similar to Z. sordidisquama (Stein) , but it differs from the latter as follows: body length 5.2–5.6 mm, smaller than Z. sordidisquama (body length 6.5 mm); acrostichal setae 1+2 (0+ 1 in Z. sordidisquama ); hind tibia with a row of 5–7 anteroventral setulae on apical half and setula about 1/4 of hind tibia length, 1 anterodorsal and 1 posterodorsal setae; first tarsomere of hind leg with a complete row of brown setae, basal setae ventrally about as long as tarsal width; male cerci with the outer process enlarged (narrower in Z. sordidisquama ) (characters of Z. sordidisquama based on Fan 2008 and Pamplona et al. 2016).