Scathophaga intermedia (W ALKER, 1849)

Šifner, František, 2020, Scathophaga karmazini nov. sp., a new species from Austria, with a key to Scathophaga species from Central Europe (Diptera, Scathophagidae), Linzer biologische Beiträge 52 (1), pp. 731-757 : 734

Scathophaga intermedia (W ALKER, 1849) ( Figs 21–24 )

M a t e r i a l e x a m i n e d: CANADA: Payne Bay , Que., 20.vii. 1958, 1♂ ; the same locality, 27.vii.1958, 1♀, Mac Dougall leg., J.R.Vockeroth det as S.intermedia (FSPC) .

D i a g n o s i s. Male. The abdominal sternite 5 with lobes slightly arched outside with one caudal bristle, sternites 4 and 3 rectangular without distinct bristles ( Fig. 21 ), cerci with two rows of short bristles, surstyli slightly arched ( Fig. 22 ), pregonite narrow, with one seta dorsally ( Fig. 23 ).

Female. Sternites 7 and 6 more or less oval with distinct bristles, sternite 6 slightly scerotised marginally, sternite 5 pointed caudally ( Fig. 24 ).

C o m m e n t s. The species is mentioned by GORODKOV (1986) from the Palaearctic Region, namely from Russia (Far East). In Central Europe it was recorded from Poland only (DRABER- MOŃKO 1991). Here presented original data and figures are based on voucher specimens from Canada; they are deposited in the authorʼs collection.

D i s t r i b u t i o n. Recorded only in Poland ( ŠIFNER 2018).

Figures

Figs 21-24. Scathophaga intermedia (WALKER, 1849). (21) male abdominal sternites 5 to 3; (22) cerci and surstyli (caudal view); (23) left pregonite; (24) female abdominal sternites 8 to 5. Scale bars: 0.5 mm (Figs 21, 22, 24); 0.1 mm (Fig. 23).