Natural History Willow Emerald Damselfly at Gunnersbury Triangle 6 September 2018 Ian Alexander Willow Emerald or Spreadwing Damselfly, rainbow iridescent in the beautiful Indian Summer sunshine. The wings never quite close over the back as they do in other damselflies. Southern Hawker ovipositing on boardwalk (in front of my boots) Common Darters in Cop Dog’s Vomit Slime Mould, Fuligo septica, on Birch log