Shop › Freshwater Reviews Vol 6 Issue 1 June 2013 - Family-level keys to freshwater fly (Diptera) larvae. Image 1 of 1 Freshwater Reviews Vol 6 Issue 1 June 2013 - Family-level keys to freshwater fly (Diptera) larvae. £5.00 A brief review and a key to European families avoiding use of mouthpart characters. Add To Cart Added! A brief review and a key to European families avoiding use of mouthpart characters. You Might Also Like Turbulence in Lakes & Rivers - SP29 Extended Riverfly Groups Invertebrate ID Chart A Guide to the Morphology of the Diatom Frustule - SP44 - PHOTOCOPY ONLY Eutrophication - SPEC3 A Key to the Freshwater Triclads of Britain and Ireland. - SP58 - (PHOTOCOPY ONLY)