Photo 65753325, (c) Attila Oláh, some rights reserved (CC BY), uploaded by Attila Oláh

Attribution © Attila Oláh some rights reserved Uploaded by attilaolah Source iNaturalist Associated observations Photos / Sounds 4 photos What Holarctic Alderflies (Genus Sialis) Observer attilaolah Date April 5, 2020 05:22 PM SAST Place Thalwil, Mettli, 8800 Thalwil, Switzerland (Google, OSM) Date Added April 5, 2020 05:24 PM CEST 2 IDs Research Grade View Sizes small medium large original