For species protection reasons, finding places of butterflies on maps are accidentally moved by a maximum of 1 kilometers. Show photo location (OpenStreetMap) Holly BlueCelastrina argiolus (Linnaeus, 1758)Holly Blue Faulbaum-Bläuling (Celastrina argiolus) in Oberkassel [Male] Photograph: Ingo DanielsIngo Daniels; Bonn, GermanyBonn, GermanyGermany (10. June 2018, 11:52 AM)