Keywords: Eristalis pertinax (Hoverfly sp.) female, Arnhem, the Netherlands.jpg en Eristalis pertinax Hoverfly sp female Arnhem the Netherlands nl Eristalis pertinax Kegelbijvlieg vrouwtje Arnhem Nederland 2015-04-13 12 00 00 own Bj schoenmakers thumb left 120px 51 9479748766 5 85038786754 cc-zero Eristalis pertinax Diptera of the Netherlands |