Early stages: Nemapogon clematella

It is also worth having a close look at any Hazel branches that have the small black fruiting bodies of the fungus Diatrype disciformis on them, as the larvae of Nemapogon clematella feed within, given away by the tell-tale frass. The last image is of a pupa and cocoon found directly under these fruiting bodies that could be N. clematella, time will tell.