Scatomyza nigrolineata Ozerov et Krivosheina, 2018

Ozerov, A. L. & Krivosheina, M. G., 2018, To the knowledge of the genus Scatomyza Fallén, 1810 (Diptera: Scathophagidae) of Nepal, Far Eastern Entomologist 353, pp. 1-16 : 8-11

Scatomyza nigrolineata Ozerov et Krivosheina , sp. n.

Figs 12–17

MATERIAL. Holotype – ♂, Nepal: Rasuwa Distr. , Buddha mandir env.

(28.0879ºN 85.3900ºE), 4215 m, 13–14.VI 2017, coll. A. Medvedev ( ZMUM) .

Paratypes: 29 ♂♂, 10 ♀♀, same labels as holotype ( ZMUM) .

DESCRIPTION. MALE (Figs 12, 13), FEMALE. Head. Frontal vitta matt, with whitish reflections, reddish, but often blackish in central part; fronto-orbital plate black, grey dusted. Face blackish, greyish dusted. Parafacial reddish. Gena pale blackish, with whitish reflections. Postcranium black, densely grey dusted, covered with whitish and black hairs. Setae: 3 orbitals, 4–5 frontals, 1 ocellar, 1 inner vertical, 1 small outer vertical, postocellar as hairs; 4 pairs of vibrissae present.

Antenna black. Postpedicel rounded apically, about 2.5 times as long as wide.

Arista black, pubescent throughout its length. Palpus slender, yellow.

(upper); 16 – epandrium, cerci and surstyli, lateral view; 17– same, dorsal view.

Thorax black, densely grey dusted. Scutum with densely black stripe between dorsocentral rows (Figs 12, 13). Acrostichals short in two rows, prescutellar pair not differentiated or only slightly longer than the other acrostichals, dorsocentrals

3+3, intra-alars 0+2, supra-alars 1+2, postpronotals 2, notopleurals 2, postalars 2.

Proepisternum with hairs, also usually with 2 slender setae near lower margin. Proepimeron with hairs. Anepisternum covered with long blackish hairs completely or almost completely, with hairs adjacent to anterior thoracic spiracle and with 2–3 black setae along posterior margin. Katepisternum covered with long yellowish hairs and

1 strong seta in posterodorsal corner. Anepimeron bare. Postmetacoxal bridge present.

Scutellum black, densely grey dusted and with blackish spot laterally (Fig. 13); a pair of strong basal scutellar and a pair of strong apical scutellar setae present.

Legs. Coxae and femora black, densely grey dusted; tibiae yellow; tarsi yellow,

but tarsomere 5 blackish; pulvillae blackish. Fore femur with long hairs, but without conspicuous setae. Fore tibia without conspicuous setae in male, with 2 dorsal (anterodorsal), 1 posterior setae, 1 preapical dorsal and 1 apical posterior setae in female.

Mid femur covered with hairs, with 1 long basal hair posteriorly. Mid tibia with 2

posterodorsal, 2 anterodorsal, 1 posterior, 1 ventral setae, and a ring of apicals.

Hind femur covered with hairs, without conspicuous setae in male, with a row of anterodorsal setae in female. Hind tibia with 3 anterodorsal, 2–3 posterodorsal, 1

anteroventral setae, and a ring of apicals; apical posteroventral seta absent.

Wing clear; veins blackish, vein R 1 bare. Calypters, margins of calypters, and halteres yellowish.

Abdomen elongate-cylindrical, black, greyish dusted, covered with hairs. Male sternite 4 simple, about 1.5 times as wide as long ( Fig. 15 ). Male sternite 5 with a pair of submedian processes and a pair of lateral lobes on posterior margin ( Fig.

15). Cerci and surstyli as in Figs. 16, 17 . Ovipositor short, cylindrical; sclerites of ovipositor shining.

MEASUREMENTS. Length of body 5.2–8.5 mm, length of wing 6.8–8.4 mm.

BIOLOGY AND HABITAT. Imago were registered on stones and on vegetation near dung of domestic horse and domestic yak at the height 4200 m (Figs 12–14).

DISTRIBUTION. Nepal: Rasuwa Distr.

Figures

Figs 14–17. Scatomyza nigrolineata sp. n., ♂. 14 – habitat; 15 – sternites 4 (lower) and 5