Criorhina floccosa (Meigen, 1822)

Prokhorov, A. V., Popov, G. V. & Zaika, M. I., 2018, New Records Of Hoverflies (Diptera, Syrphidae) From Ukraine. I. Milesiini And Rhingiini, Vestnik Zoologii 52 (1), pp. 13-20 : 14

Criorhina floccosa (Meigen, 1822) ( figs 1–2 )

M a t e r i a l e x a m i n e d. Ukraine: Zakarpattia Region , Kamianytsia env., Uzh River valley (left bank), 48.70 N 22.43 E, on flowers of Crataegus sp. , 7.05.2017, 1 ♀, 9.05.2017, roads in deciduous forest, 2 ♂, 1 ♀ ( A. Prokhorov); idem, 9.05.2017, roads in deciduous forest, 1 ♂, 1 ♀ ( G. Popov) .

D i s t r i b u t i o n: southern Sweden and Denmark south to the Pyrenees; from Ireland eastwards through central Europe (plus northern Italy, Bosnia and Herzegovina, Macedonia, Serbia, Slovakia) into European parts of Russia, Caucasus and Turkey ( Stackelberg, 1970; Peck, 1988; Holinka & Mazánek, 1997; Vujić & Milankov, 1999; Saribiyik, 2009; Speight, 2016). Ukraine ( first record). Our records extend the knowledge of the eastern boundary of this rare European species range.

Notes. The larvae of this species develop in decaying roots and in rot-holes of the deciduous trees such as Ulmus , Fagus and Acer ( Rotheray, 1991, 1994; Bartsch et al., 2009; Speight, 2016).

Figures

Figs 1–4. Habitus of Criorhina floccosa (figs 1, 2) and Chalcosyrphus eunotus (figs 3, 4), dorsal view: 1, 3 — males, 2, 4 — females.