Keywords: Dysaphis crataegi (Aphididae sp.) gall, Arnhem, the Netherlands.jpg en Dysaphis crataegi Aphididae sp gall Arnhem the Netherlands nl Dysaphis crataegi Meidoornpeenluis gal Arnhem Nederland 2014-04-12 12 00 00 own Bj schoenmakers thumb left 120px thumb left 120px 51 9490396095 5 851643309 cc-zero Dysaphis crataegi Galls |