following images: File:Große_Eintagsfliege,_mayfly,_Ephemera_danica_2011-05-03_IMG_1125_EDIT2.jpg licensed with Cc-by-sa-3.0, GFDL 2011-05-03T16:35:54Z Zapyon...
DescriptionGroße Eintagsfliege, mayfly, Ephemera danica 2011-05-03 IMG 1125 EDIT2.jpg English: Male mayfly, presumably of the species Ephemera danica hanging...