Scatomyza sinensis (Sun, 1996)

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 : 11-14

Scatomyza sinensis (Sun, 1996)

Figs 18–21

Scathophaga sinensis Sun, 1996: 630 . Type-locality: Mts. Emei, 1800 m – 2000 m

(Sichuan, China)

Scathophaga calceata Ozerov, 2009: 425 . Type-locality: Annapuma Conservat, Area

Bagarchhap ( Nepal), syn. n.

MATERIAL EXAMINED. Nepal: Rasuwa Distr., Sing Gompa env. (ca.

28.1108ºN 85.3391ºE), 3250–4000 m, 10–16.VI 2017, 52 ♂♂, 19 ♀♀, coll. A.

Medvedev, A. Ozerov ( ZMUM); Rasuwa Distr. , Lauribina env. (ca. 28.0926ºN

85.7996ºE), 3910 m, 12. VI 2017, 1 ♀, coll. A. Medvedev ( ZMUM) .

DESCRIPTION. MALE ( Fig. 18 ), FEMALE. Head. Frontal vitta matt, reddish yellow; fronto-orbital plate black, golden dusted. Face, parafacial and gena reddish yellow. Postcranium black in upper part and yellow in lower part, grey dusted,

covered with black hairs and setae in upper part and long yellow hairs in lower part.

20) epandrium, cerci and surstyli, lateral view; 21) same, dorsal view. 19–21 after Ozerov,

2009, Figs 26–28 (as S. calceata ). ( Figs 19–21 – after Ozerov, 2009).

Setae: 3 orbitals, 4–7 frontals, 1 ocellar, 1 small inner vertical, 1 small outer vertical,

1 small postocellar; 4–5 pairs of vibrissae present. Scapus and pedicel yellowish,

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

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

Thorax. Scutum greyish dusted, with dark markings as follows: a pair of paramedian vittae between the acrostichal and dorsocentral rows; a patch between presutural dorsocentrals and supra-alars; and postsuturally a vitta between dorsocentrals and intra-alars. Pleura greyish dusted. Acrostichals as hairs in two rows, but prescutellar pair stronger, approximately as long as postocellar setae, dorsocentrals 2+3, intraalars 1+2, supra-alars 1+2, postpronotals 2, notopleurals 2, postalars 2. Proepisternum and proepimeron covered with yellow hairs. Anepisternum covered with long yellow hairs almost completely, with hairs adjacent to anterior thoracic spiracle and with

3–4 black setae along posterior margin. Katepisternum covered with long 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. Coxae of all legs black, grey dusted; femora, tibiae and tarsi yellow, only tarsomere 5 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, but without conspicuous setae or with 1 dorsal seta at middle and 1 preapical dorsal seta.

Fore tibia in female with 3 dorsal, 1–2 posterior, 1 preapical dorsal and 1 apical posterior setae. Mid femur covered with hairs, with 3–4 anterodorsal, 1 preapical posterior and 1 preapical posterodorsal setae. Mid tibia covered with long straight yellow hairs in male, also with 1 posterodorsal, 2 anterodorsal setae, and a ring of apicals. Mid tibia in female without long straight yellow hairs, with 3 posterodorsal,

2 anterodorsal setae, and a ring of apicals. Hind femur covered with moderate yellow hairs in male, also with 4 anterodorsal setae. Hind femur in female without moderate yellow hairs, with a row of anterodorsal setae. Hind tibia covered with long straight yellow hairs in male, also with 3 long posterodorsal, 3 long anterodorsal, 1 preapical posterodorsal, 1 preapical anterodorsal, 1 apical anteroventral setae. Hind tibia in female without long straight yellow hairs, with 3 anterodorsal, 3–4 posterodorsal, 1

preapical posterodorsal, 1 preapical anterodorsal, 1 apical anteroventral setae.

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

Abdomen elongate-cylindrical, black, shining or subshining, covered with yellow hairs, in female additionally tergites 2–6 with a row of marginal setae. Male sternite

5 as in Fig. 19 . Cerci and surstyli as in Figs. 20, 21 .

MEASUREMENTS. Length of body 6.5–14.0 mm, length of wing 6.8–12.0

mm.

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

Asian water buffalo, domestic donkey and domestic horse at the height 3300–4000

m a.s.l. The females of S. sinensis are egg-laying.

DISTRIBUTION. Nepal: Manang Distr., Rasuwa Distr. – China, India.

NOTES. The species was known from Nepal under the name of Scathophaga calceata Ozerov, 2009 , described by male from Bagarchhap (Manang Distr., 2160

m) (Ozerov, 2009), a female was registered in India (state Meghalaya, pine forest,

1700 m, in same paper).

Owing to the help of Dr. Kuiyan Zhang (National Zoological Museum of China,

Institute of Zoology , Chinese Academy of Science, Beijing, China), who kindly sent us the photos of holotypes of several Scathophaga species described from

China, including S. sinensis Sun, 1996 , we establish that S. sinensis Sun and S.

calceata Ozerov are conspecific.

Figures

Figs 18–21. Scatomyza sinensis (Sun, 1996), ♂: 18) habitus, lateral view; 19) sternite 5;