We report the first documented records of the gall midge Dasineura odoratae Stelter, based on adults reared from galls on the single host plant of the species, Viola odorata. We also report Aphanogmus abdominalis (Thomson) (Hymenoptera: Ceraphronidae) as a parasitoid of this gall midge. In addition, we report some recent Danish finds of the rare gall midge Mayetiola hellwigi (Rübsamen).