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 Freshwater Biology and Ecology Handbook (digital copy with £5 donation) Concentrations of Major Ions in Streams on Catchments of the River Duddon and Windermere - OP21 Desmids of the English Lake District. - SP42 Mayfly Larvae (Ephemeroptera) of Britain and Ireland by JM Elliott & U H Umpesch Freshwater Megaloptera of Britain and Ireland