Metopia auripulvera Chao & Zhang 1988
- Dataset
- The Sarcophagidae (Insecta: Diptera) described by Chien-ming Chao and Xue-zhong Zhang
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Insecta
- order
- Diptera
- family
- Sarcophagidae
- genus
- Metopia
- species
- Metopia auripulvera
description
Redescription of Male: Body length 5.5 – 7.0 mm (Fig. 3 A). Eye bare, deep red. Fronto-orbital plate, parafacial and postocular strip black with golden gray pollinosity; parafacial with strong bristles up to 4 / 5 (Fig. 3 B, D), slightly broader than fronto-orbital plate. Frontal vitta brown, 2.0 × as broad as fronto-orbital plate in the median part; frons at vertex 0.45 × head width (Fig. 3 C); frontal row of 8 or 9 bristles; outer vertical bristle differentiated from postocular bristles, two upper orbital and two proclinate orbital bristles. Ocellar bristles directed antero-laterlly. Gena ground color black, with black bristles and light golden pollinosity, height 0.10 – 0.15 × eye height in lateral view (Fig. 3 B). First antennal flagellomere brown, 2.5 – 4.0 × as long as pedicel; arista micropubescent, swollen in basal 1 / 3 (Fig. 3 A, B); postocular bristles in six rows; vibrissa developed. Palpus black, slightly expanded in distal part (Fig. 3 B, C, D). Thorax ground color black; scutum pollinosity golden yellow with four black dorsal vittae. Chaetotaxy: acrostichals 2 + 3, dorsocentrals 2 + 3, intra-alars 1 + 3, supra-alars 1, postalars 2, postpronotals 1, notopleurals 2, scutellum with 1 apical, 1 subapical, 1 basal, and 1 discal (fine) bristles. Pleuron with meropleurals 4, katepisternal bristles 1: 1, prosternum, metasternum, proepimeron and proepisternum all bare. Wing hyaline; subcostal sclerite and basicosta yellow, bare; tegula black; costal spine not differentiated; vein R 1 bare, three ventral bristles at node of R 2 + 3 - R 4 + 5, vein R 4 + 5 setose dorsally from junction of R 2 + 3 halfway to crossvein r-m; lower calypter yellow. Legs black; fore femur with dense and long bristles along posterodorsal, posterior, posteroventral and ventral margins, fore tibia with one apical dorsal and one sub-median posterior bristles, one row of anterodorsal bristles, without elongated, slender bristles on fore tarsomeres 1 – 4 (Fig. 3 F); mid femur with one median anterior and two apical posterodorsal bristles, mid tibia with one sub-median anterodorsal, one sub-median ventral, three posterodorsal bristles; hind femur with one row of anterodorsal, one row of dorsal and one row of ventral bristles, hind tibia with one sub-median anteroventral and two posterodorsal bristles, one row of anterodorsal bristles (about 6). Abdomen oval with gray pollinosity. Tergites 1 + 2 and tergite 3 both with one pair of median marginal bristles, tergites 4 and 5 both with complete row of marginal bristles (Fig. 3 E). Redescription of Female: Body length 5.1 – 5.9 mm (Fig. 4 A). Thorax chaetotaxy: acrostichals 2 + 0, postpronotals 2. Mid femur with three anterior bristles; hind tibia with one row of anterodorsal bristles (about 9). Other morphological characteristics are similar to those of the male.
discussion
Remarks: Metopia auripulvera resembles M. campestris (Fallén) and M. pollenia Chao & Zhang, but males can be distinguished from both of these species by the absence of the elongated, slender bristles posteriorly on fore tarsomeres 1 – 4. The species may be even more similar to M. grandii Venturi, but can be distinguished by the presence of one sub-median ventral bristle on mid tibia as well as by details of the male terminalia. Metopia auripulvera has a more slender surstylus and an anteriorly curved, parallel-sided acrophallus, while M. grandii has a more robust surstylus and the acrophallus slanting posteriorly and with a subapical constriction (compare Chao & Zhang, 1988 a: fig. 15 b with Pape, 1987: figs. 150, 152).
materials_examined
Originally included specimens: Described from six males and three females. Name-bearing type: Holotype ♂: Yunnan, Lushui / Yaojiaping, 2500 m / Chinese Academy of Sciences [white label in Chinese, in black print except “ Lushui / Yaojiaping, 2500 m ” handwritten in black ink] // 1981. VI. 6 / Collected by C. M. Chao [“ 1981. VI. 6 ” handwritten in black ink, remaining in black print, in Chinese] // HOLOTYPE [red label, in black print] // IOZ (E) 216084 [blue label, in black print] // ♂ [white label, in black print] // Metopia / auripulvera / Zhao & Zhang [white label, in black print] // Metopia / auripulvera Chao et Zhang / Identified by C. M. Chao [“ Identified by C. M. Chao ” in black print, in Chinese, remaining handwritten in blueblack ink]. Holotype in good condition except broken left wing tip. Current identity: Metopia auripulvera Chao & Zhang, 1988, as correctly listed by Pape (1996) and as treated by Xue & Chao (1998). Additional type specimens: Allotype ♀: Sichuan, Xiangcheng, Chaike, alt. 3000 m, 21. VI. 1982, Coll. by X. Z. Zhang. Paratypes 2 ♂♂: Yunnan, Lushui, Yaojiaping, alt. 2500 m, 6. VI. 1981, Coll. by C. M. Chao; 1 ♂: Sichuan, Xiangcheng, alt. 3800 m, 25. VI. 1982, Coll. by X. Z. Zhang; 1 ♂: Sichuan, Ganzi, alt. 3650 m, 1. VII. 1983, Coll. by X. Z. Zhang; 1 ♂: Yunnan, Weixi, Fantiange, alt. 2900 m, 18. VII. 1981, Coll. by X. Z. Zhang; 2 ♀♀: Sichuan, Xiangcheng, Rewu, alt. 4400 m, 8. VII. 1982, Coll. by X. Z. Zhang. All specimens in NZMC.