Scatomyza mellipes (Coquillett, 1899)

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 : 7-8

Scatomyza mellipes (Coquillett, 1899)

Figs 9–11

Scatophaga mellipes Coquillett, 1899: 335 . Type-locality: locality not stated ( Japan).

Scatophaga chinensis Malloch, 1935: 260 . Type-locality: "Suifu, Szechuen, China ".

Scathophaga eoa Ozerov, 2007: 2 . Type-locality: "environs of Lazo (43.3806ºN,

133.8951ºE)" ( Russia, Primorskiy kray) .

MATERIAL EXAMINED. Nepal: Mustang Distr. , Muktinath env. (ca. 28.8201ºN,

83.8565ºE), ~ 3600 m, 25–30. VI and 1–9.VII 2017, 37 ♂♂, 10 ♀♀, coll. A. Medvedev ( ZMUM); Rasuwa Distr. , Sing Gompa env. (ca. 28.1108ºN, 85.3391ºE) ,

3250–4000 m, 25.V 2016, 10–16.VI 2017, 3 ♂♂, 2 ♀♀, coll. A. Medvedev, A.

Ozerov ( ZMUM); Rasuwa Distr. , Cholang Pati env. (28.0971ºN, 85.3734ºE), 3700

m, 28. V 2016 , 4 ♂♂, coll. A. Medvedev ( ZMUM).

DESCRIPTION. MALE, FEMALE. Head. Frontal vitta matt, reddish yellow;

fronto-orbital plate black, greyish dusted. Face, parafacial and gena yellow. Postcranium black, grey dusted, covered with black hairs and setae in upper part and yellow hairs in lower part. Setae: 3 orbitals, 3–5 frontals, 1 ocellar, 1 inner vertical,

1 outer vertical, 1 small postocellar; 4–5 pairs of vibrissae present. Scapus and pedicel yellowish, postpedicel black. Postpedicel rounded apically, about 2 times as long as wide. Arista black, pubescent throughout its length. Palpus slender, yellow.

Thorax black, greyish dusted. Scutum with four indistinctly brownish stripes.

Acrostichals as hairs in two rows, but prescutellar pair stronger, approximately as long as postocellar setae, dorsocentrals 2+3, intra-alars 1+2, supra-alars 1+(2–3),

postpronotals 2, notopleurals 2, postalars 2. Proepisternum and proepimeron covered with yellow hairs. Anepisternum covered with yellow and black hairs almost completely, with hairs adjacent to anterior thoracic spiracle and with 3–4 black setae along posterior margin. Katepisternum covered with yellow hairs and 1 strong seta in posterodorsal corner. Anepimeron bare. Postmetacoxal bridge present. Scutellum black, greyish dusted; a pair of strong basal scutellar and a pair of strong apical scutellar setae present.

Legs yellow, but first femur in several specimens partly blackish dorsally and tarsomere 5 of all legs blackish apically. Fore femur covered with yellow hairs, but without conspicuous setae in male, additionally with a row of posterodorsal setae in female. Fore tibia in male covered with yellow hairs posteroventrally and ventrally,

usually without conspicuous setae. Fore tibia in female, with 3 dorsal, 1–2 posterior, 1

preapical dorsal and 1 apical posterior setae. Mid femur covered with hairs, without anterodorsal setae in male and with a row of anterodorsal setae in female, additionally with 1 preapical posterior and 1 preapical posterodorsal setae in both sexes.

Mid tibia covered with straight blackish hairs in male, also with 3 posterodorsal, 2

anterodorsal, and a ring of apicals. Mid tibia in female without straight hairs, with

3–4 posterodorsal, 2 anterodorsal, 1 ventral setae, and a ring of apicals. Hind femur covered with moderate yellow hairs, but without conspicuous setae in male. Hind femur in female without moderate yellow hairs, but with a row of anterodorsal setae and 2 anteroventral setae in apical third. Hind tibia covered with straight blackish hairs in male, but without such hairs in female, also with 3 posterodorsal, 3 anterodorsal, 1 preapical posterodorsal, 1 preapical anterodorsal, 1 apical anteroventral setae in both sexes.

Wing tinged with brownish, without clouding on crossveins; veins blackish. Calypters, margins of calypters, and halteres yellowish.

Abdomen elongate-cylindrical, black, greyish dusted, covered with yellow (male)

or black (female) hairs, in female additionally tergites 2–6 with a row of marginal setae. Male sternites 4 and 5 as in Fig. 9 . Cerci and surstyli as in Figs. 10, 11 .

(upper); 10 – epandrium, cerci and surstyli, lateral view; 11 – same, dorsal view.

MEASUREMENTS. Length of body 5.1–11.0 mm, length of wing 5.0–10.0 mm.

BIOLOGY AND HABITAT. Adult flies were collected on dung of domestic

Asian water buffalo, domestic donkey, domestic horse, also on human excrements at the height 2600–3300 m a.s.l. in Rasuwa province, and on human excrements at the height 3600 m a.s.l. in Mustang province. The females of S. mellipes are egglaying.

DISTRIBUTION. Nepal: Mustang Distr., Rasuwa Distr. – Russia (south of Far

East), Korea, Japan, China, India, Vietnam.

NOTES. The species was recorded from Nepal by Vockeroth (1977).

Figures

Figs. 9–11. Scatomyza mellipes (Coquillett, 1889), ♂. 9 – sternites 4 (lower) and 5