Scathophaga buryatica, Ozerov & Krivosheina, 2019

Ozerov, A. L. & Krivosheina, M. G., 2019, Two new species of the genus Scathophaga Meigen, 1803 (Diptera: Scathophagidae) from Asia, Russian Entomological Journal 28 (1), pp. 102-106 : 102-106

Scathophaga buryatica sp.n.

Figs 1–4 .

Holotype ♂, RUSSIA, East Sayan , Samarta (52.0944°N, 101.1372°E), 40 km NO of Mondy, 1.VIII.1965, Gorodkov ( ZISP) . Paratype ♂, RUSSIA, East Sayan , Arshan (51.9082°N, 102. 4294°E), 1.VII.1965, Negrobov ( ZMUM) .

DESCRIPTION. Male. Length of body 5.2–6.2 mm. Length of wing 4.8–5.8 mm.

Head. Frontal vitta yellow, matt; face and gena yellow, whitish dusted; fronto-orbital plate, ocellar triangle, and postcranium blackish, greyish dusted. Setae: 3 orbitals, 4–5 frontals, 1 ocellar, 1 postocellar, 1 inner vertical, 1 outer vertical; 1 pair of strong vibrissae and 2–3 pairs of subvibrissae present. Postcranium covered with white hairs. Antenna black; postpedicel about twice as long as wide; arista black, bare. Palpus yellow, filiform, without long apical seta.

Thorax. Completely black, dense pale grey dusted. Acrosticals small in two rows, 2 postpronotals, 2 notopleurals, 1+2 supra-alars, 1+2 intra-alars, 2 postalars, and 2+3 dorsocentrals. Proepisternum centrally and ventrally with whitish hairs, without strong setae ventrally. Proepimeron with whitish hairs. Anepisternum

How to cite this article: Ozerov A.L., Krivosheina M.G. 2019. Two new species of the genus Scathophaga

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covered with hairs completely and with 3–4 strong setae along posterior margin. Katepisternum covered with hairs completely, with long whitish hairs posteriorly and one strong seta in posterodorsal corner. Postmetacoxal bridge absent. Scutellum greyish dusted, with a pair of strong basal scutellar and a pair of strong apical scutellar setae.

Legs. All coxae black, greyish dusted. All femora black, except 1/4 or 1/5 of yellow apex, greyish dusted. All tibiae and tarsi yellow. Fore femur covered with whitish and blackish hairs, without striking setae. Fore tibia with a row of posterodorsal setae, with 1–2 dorsal, 1–2 posterior, 1 preapical anterodorsal, 1 apical posterodorsal, 1 apical posterior setae. Mid femur with a row of anterodorsal setae, with 1 preapical posterodorsal and 1 preapical posterior setae. Mid tibia with 2 anterodor-

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sal, 2 posterodorsal, and 0–1 anteroventral setae, also with a ring of apicals. Hind femur with a row of dorsal/ anterodorsal setae. Hind tibia with 2–3 posterodorsal, 2–3 anterodorsal, 1 preapical dorsal, 1 preapical anterodorsal, and 2 apical anteroventral setae.

Wing clear, veins brownish. Vein R 1 bare. Calypteres, including margins, whitish or yellowish. Halter yellow.

Abdomen black, greyish dusted, covered with whitish hairs. Male sternite 4 about 1.5 times as long as wide ( Fig. 1 ). Male sternite 5 with little curved internally lobes, each with external long setae ( Fig. 1 ). Cerci and surstyli as in Figs 3, 4 . Aedeagus with curved apical part, with acrophallus and paraphallus forming ring ( Fig. 2 ).

Female unknown.

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NOTE. The new species differs well from the other species of Scathophaga by the structure of cerci and surstyli ( Figs 3, 4 ), also aedeagus, which has specific form ( Fig. 2 ).

DISTRIBUTION. Russia (Buryatia).

Figures

Figs 1–4. Scathophaga buryatica sp.n., HT ♂: 1 — sternite 4 (lower) and 5 (upper); 2 — aedeagus, lateral view; 3 — epandrium, cerci and surstyli, dorsal view; 4 — epandrium, cerci and surstyli, lateral view. Рис. 1–4. Scathophaga buryatica sp.n., HT ♂: 1 — стернит 4 (верхний) и 5 (нижний); 2 — Эдеагус, сбоку; 3 — Эпандрий, церки и сурстили, сверху; 4 — Эпандрий, церки и сурстили, сбоку.