Photo 12521, (c) Walwyn, some rights reserved (CC BY-NC-SA)

Attribution © Walwyn some rights reserved Source Flickr Original http://www.flickr.com/photos/55228353@N00/2481320916 Associated taxa CC Holarctic Alderflies (Genus Sialis) Info Photo (c) Walwyn, some rights reserved (CC BY-NC-SA) CC Modern and Ancestral Alderflies (Family Sialidae) Info Photo (c) Walwyn, some rights reserved (CC BY-NC-SA) Sizes small medium large original Copyright Walwyn