Pollenia margarita nov.sp. (Figs 1-18)

M a t e r i a l e x a m i n e d: Holotype ♁, AUSTRIA: Lower Austria, Nationalpark Donau-Auen, Lobau, Mühlleiten E Vienna, 48.162N / 16,564E, 150 m a.s.l., 30.03.2021, leg. & det. G. Schlüsslmayr. Holotype in Natural History Museum London. Paratypes: same locality and date as for holotype: 2♁♁. 1 Paratype in Biologiezentrum Linz (LI).

A d d i t i o n a l m a t e r i a l: AUSTRIA: LowerAustria, NationalparkDonau-Auen, Orth an der Donau, 48.128N / 16.708E, 150 m a.s.l., 30.03.2021, 1 ♁; Lower Austria, Nationalpark Donau-Auen, Stopfenreuth, 48.14N / 16.90E, 145 m a.s.l., 30.03.2021, 2♁♁, leg. & det. G. Schlüsslmayr.