Scatophila contaminata ( Stenhammar, 1844 )

Zatwarnicki, Tadeusz & Kejval, Zbyněk, 2025, A review of Palaearctic species of the contaminata group of Scatophila (Diptera: Ephydridae) with description of a new species, Acta Entomologica Musei Nationalis Pragae 65 (1), pp. 157-165 : 160-161

Scatophila contaminata ( Stenhammar, 1844)

( Figs 1–9 )

Ephydra contaminata Stenhammar, 1844: 185 .

Scatophila contaminata : BECKER (1896): 240 (combination).

Scatophila halterata Becker, 1896: 245 .

Scatophila halterata : ZATWARNICKI (1987): 280 (synonymy). Type localities. Ephydra contaminata – not given, Sweden from the title of the paper; Scatophila halterata – Węgliniec (as ʽKohlfurtʼ), Lower Silesia, Poland.

Type material examined. Ephydra contaminata : LECTOTYPE: ♂, designated by ZATWARNICKI & MATHIS (2024) in good condition, labelled: ʽE. contaminata St. ♂ a Stenh. [handwritten] // MZLU-DIPT 000 67432 [ʽ67432ʼ handwritten] // LECTOTYPE ♂ Ephydra contaminata Stenhammar designated by Zatwarnicki & Mathisʼ ( MZLU) .

Scatophila halterata : HOLOTYPE: ♂ (without head, terminalia in a plastic vial) labelled:ʽKohlfurt 10/6. 37425 // Holotypus [red] // halterata // Mus. Zool. Berlin [yellow]ʼ ( ZMHB).

Other material examined. BELGIUM: Blankenberge, 10.viii.1924, M. Bequaert leg., 1 ♂; Genk (Termiën), 14.x.1949, A. Collart leg., 1 ♂; Knokke, 1.ix.1954, M. Bequaert leg., 1 ♀; Postel, 28.iii.1922, G. Severin leg., 1 ♀ ( RBINS). CZECH REPUBLIC: BOHEMIA: Bilina, Lom 1, 50°34′57″N 13°41′50″E, alt. 260 m, near small pond, ET, 3.iv.–2.v.1999, M. Barták leg., 1 ♀; Březno, S of Chomutov, 17.vii.–19. viii.1999, M. Barták leg., 1 ♀; Chomutov, Libouš II jih, 17.vii.–19. vi.1999, M. Barták leg., 1 ♀; Duchcov, 2 km E, deciduous wood, 1.vii.1993, M. Barták leg., 2 ♂♂ ( CULSP); Kateřina, Soos NNR , 50°08′55″N 12°24′31″E, alt. 440 m, salt marshes, 9.–11.vi.2022, Z. Kejval lgt., 1 ♂ ( MCH); same data, except: 50°09′03″N 12°24′09″E, 24.vi.2023, 1 ♂ ( MCH). POLAND: Malczyce [ʽOderwald 14/5 30851ʼ], T. Becker leg., 1 ♀ ( ZMHB); Słupsk, 29.viii.1932, O. Karl leg., 1 ♀ (ZMPA). RUSSIA: Novosibirsk, Cherny Mts, aspirated among sedge roots, 28.vi.1991, S. A. Marshall leg., 2 ♂♂ (DEBU). SWEDEN: SKÂNE: Lanskrona, Lindeshamn, 27.viii.1990, P. Prütz leg., 1 ♂ 1 ♀; same locality, 23.iv.2009, P. Prütz leg., 1 ♂; Lomma, 16.iii.1972, H. Andersson leg., 1 ♂; T. Hellestad Trollskogen, 6.v.1971, H. Andersson leg., 1 ♂ (MZLU). UඉඉLAND: Hjälsta, Hjälstaviken, 1.iv.1960, L. Hedström leg., 1 ♀; Uppsala, Nedre Föret, 16.iv.1958, L. Hedrström leg., 1 ♂ (UUZM).

Diagnosis. Body shiny, blackish ( Figs 3, 5 ); face of male with white microtomentum ( Figs 2, 5, 6 ), face of female shiny ( Fig. 1 ); mesonotum uniform, without pattern; acrostichal setulae similar in size; wing with conspicuous spots ( Fig. 4 ); margin of wing at apex of vein R 4+5 rounded; knob of halter brown or blackish; male genitalia ( Figs 7–9 ) with epandrial anterior margin projected medially ( Fig. 7 ) and phallapodeme bar-like, slightly broadened posteriorly ( Figs 8, 9 ).

Distribution. Holarctic: Alaska (ZATWARNICKI & MATHIS 2024); Belgium (ZATWARNICKI 2023), Czech Republic ( BARTÁK 1996, ZATWARNICKI et al. 2001), Finland (ZATWARNICKI & KAHANPÄÄ 2014), Germany (HOLLMANN- SCHIRRMACHER & ZATWARNICKI 1999), Hungary (ZATWARNICKI & PAPP 2001), Poland (BECKER 1896; KARL 1937; ZATWARNICKI 1987, 1991), Russia: European Territory ( NARTSHUK 1970), Siberia (new record), Sweden ( DAHL 1959, ZATWARNICKI, 1987).

Figures

Figs 1–6. Scatophila contaminata (Stenhammar, 1844). 1 – head, anterior view; 2 – head, lateral view; 3 – habitus, latero-oblique view; 4 – wing, dorsal view; 5 – head and thorax, dorsal view; 6 – head, latero-oblique view. Scale bar = 0.2 mm.

Figs 7–12. Male terminalia. 7–9 – Scatophila contaminata (Stenhammar, 1844): 7 – epandrium and cerci, dorsal view; 8, 9 – internal male terminalia (8 – dorsal view, 9 – lateral view). 10–12 – S. pumilio (Loew, 1860): 10 – epandrium and cerci, dorsal view; 11, 12 – internal male terminalia (11 – dorsal view, 12 – lateral view). Scale bar = 0.1 mm.