Scathophaga analis (MEIGEN, 1826)

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 : 733

Scathophaga analis (MEIGEN, 1826) ( Figs 5–8 )

= Scathophaga bohemiae ŠIFNER, 2000: 35 , nov.syn.

M a t e r i a l e x a m i n e d: CZECH REPUBLIC: Praha, Šeberovský rybník, pond (5953), 1♂, 1♀, 7.x.1997, Šifner leg. (FSPC).

D i a g n o s i s. Male. The submedial processes of abdominal sternite 5 very short with a distinct incision medially, dorsal lateral part of sternite widened (this part is very variable), sternite 4 almost quadrate, sternite 3 more or less rectangular and covered with short bristles ( Fig. 5 ), surstyli long, arched and pointed, cerci in upper part with long hairs and fine bristles ( Fig. 6 ), pregonite with two apical bristles of equal size ( Fig. 7 ).

Female. Abdminal sternite 7 distinctly enlarged caudally, sternites 6 to 4 oval ( Fig. 8 ).

C o m m e n t s. The original description of S. analis is in Latin and accompanied by very brief text in German, both based on colour characters only. Analogical is a description of the nearest species, S. inquinata (MEIGEN, 1826) ; based on these texts it is impossible to determine these two species reliably. SÉGUY (1952) considered S. analis as a valid species, GORODKOV (1986) treated it as a synonym of S. inquinata ; this opinion was accepted by ŠIFNER (2008). BERNASCONI et al. (2001) consider S. analis as a doubtful species, possibly a synonym of S. inquinata . Nowadays, based on the considerable number of specimens for comparison including the type of S. bohemiae ŠIFNER, 2000 , I state that S. bohemiae is a junior synonym of S. analis (MEIGEN, 1826) . The basic diagnostic characters on terminalia of S. analis are: male – (i) submedial processes of sternite 5 distinctly short, (ii) pregonite with two setae apically ( Fig. 7 ); female – abdominal sternite 7 long and distinctly enlarged caudally, covered with long bristles caudally, sternites 6 to 4 oval without distinct bristles ( Fig. 8 ).

D i s t r i b u t i o n. Confirmed only in Austria, Czech Republic and Poland ( ŠIFNER 2018).

Figures

Figs 5-8. Scathophaga analis (MEIGEN, 1826). (5) male abdominal sternites 5 to 2; (6) male cerci and surstyli (caudal view); (7) right pregonite; (8) female abdominal sternites 8 to 4. Scale bars: 0.5 mm (Figs 5, 6, 8); 0.1 mm (Fig. 7).