Leucomyia dukoicus Zhang & Chao, 1988: 289

Zhang, Dong, Zhang, Ming, Li, Zijuan & Pape, Thomas, 2015, The Sarcophagidae (Insecta: Diptera) described by Chien-ming Chao and Xue-zhong Zhang, Zootaxa 3946 (4), pp. 451-509 : 504-507

Leucomyia dukoicus Zhang & Chao, 1988: 289 . China, Sichuan, Dukou.

Originally included specimens: Described from fourteen males and four females.

Name-bearing type: Holotype ♂: Sichuan, Dukou/ 1200m / Chinese Academy of Sciences [“Dukou/ 1200m ” handwritten in black ink, remaining in black print, in Chinese]// 1986. IV.17 / Collected by X.Z. Zhang [“1986. IV.17 ” handwritten in black ink, remaining in black print, in Chinese]// HOLOTYPE [red label, in black print]// IOZ(E)1218510 [white label, in black print]// Leucomyia / dukoicus sp. nov / Identified by X.Z. Zhang & C.M. Chao [“Identified by X.Z. Zhang” in black print, in Chinese, remaining handwritten in black ink].

Holotype in good condition.

Current identity: Sarcophaga (Leucomyia) alba ( Schiner, 1868) , as synonymized by Pape (1996).

Additional type specimens: Allotype ♀: Sichuan, Dukou, alt. 1200m, 17.IV.1986, Coll. by X.Z. Zhang. Paratypes 13♂♂, 3♀♀: Sichuan, Dukou, alt. 1200m, 17–19.IV.1986, Coll. by X.Z. Zhang. All specimens in NZMC.

Redescription of Male: Body length 5.5–8.3 mm ( Fig. 30 A). Eye bare, yellowish red. Fronto-orbital plate, parafacial and postocular strip black with silvery pollinosity; parafacial bare, 2.5× as broad as fronto-orbital plate. Frontal vitta black with silvery pollinosity, 2.3× as broad as fronto-orbital plate in median part; frons at vertex 0.42× head width ( Fig. 30 C); frontal row of 6 bristles; outer vertical bristle differentiated from postocular bristles, upper orbital bristle one. Ocellar bristles directed antero-laterlly. Gena ground color black with silvery pollinosity, with dense white bristles and silvery pollinosity, height 0.4× eye height in lateral view ( Fig. 30 E), postgena with slender white bristles. Antennal pedicel yellow, first flagellomere grayish brown, not reaching the level of vibrissal insertion, 2.0× as long as pedicel ( Fig. 30 C, E); arista micropubescent in basal half. Palpus yellow, expanded in distal part.

Thorax ground color black with silvery pollinosity. Chaetotaxy: acrostichals 0+1 (fine), dorsocentrals 2(3)+4, intra-alars 1(fine)+2, supra-alars 2, postalars 2, postpronotals 2, notopleurals 2, scutellum with 1 apical (fine), 1 subapical and 1 basal bristles. Pleuron with meropleurals 7; katepisternal bristles 1: 1, prosternum and postalar wall with bristles, proepisternum bare.

Wing hyaline ( Fig. 30 A); subcostal sclerite and basicosta yellow, bare; tegula yellow; costal spine differentiated; vein R1 bare, three ventral bristles at node of R2+3-R4+5, vein R4+5 setose dorsally from junction of R2+3 halfway to crossvein r-m, lower calypter white.

Legs yellowish brown; fore femur with one row of dorsal bristles (about 8), one row of ventral bristles (about 7) and one row of posterodorsal bristles (about 10), fore tibia with three anterodorsal, one sub-median posterior and one posterodorsal bristles; mid femur with two median anterior, four anteroventral, one apical posterior and one apical posterodorsal bristles, one row of ventral bristles (about 8), mid tibia with two anterodorsal, one subapical ventral, one subapical posterior and three posterodorsal bristles; hind femur with one apical dorsal bristle, one row of anterodorsal bristles (about 7), one row of anteroventral bristles (about 7) and one row of posteroventral bristles (about 6), hind tibia with three anterodorsal, one sub-median anterior, one sub-median posterior and two posterodorsal bristles.

Abdomen long oval with silvery gray pollinosity; tergites 3 and 4 without median marginal bristles, tergite 5 with strong marginal bristles, epandrium yellowish brown ( Fig. 30 F), sternites 1 and 2 both with dense and long bristles. Terminalia: Cercus yellow ( Fig. 30 B).

Redescription of Female: Body length about 7.0mm ( Fig. 31 A). Parafacial 1.8× as broad as fronto-orbital plate; frontal vitta about 1.9× as broad as fronto-orbital plate in median part ( Fig. 31 C); one upper orbital and two proclinate orbital bristles. Mid femur with one row of anterodorsal bristles (about 7), without anterior bristle; hind tibia with three anteroventral bristles. Tergite 4 with one pair of median marginal bristles ( Fig. 31 E). Other morphological characteristics are similar to those of the male.

Figures

FIGURE 30. Leucomyia dukoicus Zhang & Chao, 1988 [= Sarcophaga (Leucomyia) alba (Schiner, 1868)], male, holotype. A. Body, lateral view. B. Terminalia, lateral view. C. Head, anterior view. D. Head, anterolateral view. E. Head, lateral view. F. Abdomen, dorsal view. G. Labels. Scales: A = 3.00 mm, B = 0.50 mm, C – F = 1.00 mm.

FIGURE 31. Leucomyia dukoicus Zhang & Chao, 1988 [= Sarcophaga (Leucomyia) alba (Schiner, 1868)], female, allotype. A. Body, lateral view. B. Head, lateral view. C. Head, anterior view. D. Head, anterolateral view. E. Abdomen, dorsal view. F. Labels. Scales: A = 2.00 mm, B – E = 1.00 mm.