Melangyna quadrimaculata (Verrall, 1873)

Prokhorov, A. V., Popov, G. V., Shparyk, V. Yu. & Vasilyeva, Yu. S., 2020, New Records Of Hoverflies (Diptera, Syrphidae) From Ukraine. V, Zoodiversity 54 (3), pp. 237-258 : 252-254

Melangyna quadrimaculata (Verrall, 1873) ( figs 59–63 )

M a t e r i a l e x a m i n e d. Ukraine. Kyiv Region: Kyiv, 50.351462 N 30.481535 E, Theophania Park env., edge of deciduous forest, 28.03.2016, on flowers of Salix sp. , 1} (M. Zaika) .

D i s t r i b u t i o n: Belarus, Belgium, Bulgaria, Croatia, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Great Britain, Hungary, Ireland, Italy, Latvia, Lithuania, the Netherlands, Norway, Poland, Romania, the Slovak Republic, Slovenia, Sweden, Switzerland; Russia (European part, Eastern Siberia, the Far East); Japan ( Bańkowska, 1963; Peck, 1988; Verlinden, 1991; Kuznetzov, 1993; Dirickx, 1994; Belcari et al., 1995; Holinka & Mazánek, 1997; Wolff, 1998; Nielsen, 1999; Stubbs & Falk, 2002; Stănescu & Pârvu, 2005; Pakalniškis et al., 2006; De Groot & Govedič, 2008; Mielczarek, 2009 –2020; Reemer et al., 2009; Tóth, 2011, 2014; Borodin & Borodina, 2014; Haarto & Kerppola, 2014; Barkalov & Mutin, 2018; Speight et al., 2018; Speight, 2020; Wakkie, 2020); Ukraine (first record).

Diagnosis.The Melangyna quadrimaculata female is similar to the female of M. barbifrons (Fallén, 1817) by its shining frons without pruinescence ( figs 61–63 ), or with only rudimentary pruinescence. It can be separated from M. barbifrons by tergites without pale maculae, uniformly dark except for patches of paler pruinescens ( fig. 59 ) (tergite 3, at the most, with a pair of vestigial pale maculae) (in M. barbifrons , tergites 2–4 each with a pair of pale maculae ( Bartsch et al., 2009 a; Speight & Sarthou, 2017).

Melanistic females of M. lasiophthalma (Zetterstedt, 1843) are frequently misidentified as females of M. quadrimaculata ( Speight, 2020) .

Figures

Figs 59–63. Melangyna quadrimaculata female: 59 — habitus, dorsal view; 60 — habitus, lateral view; 61 — head, dorsal view; 62 — head, anterolateral view; 63 — head, frontal view.