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I have a few excellent Colllins Field Guides (one each on Spiders, Snails Butterflies and Trees, also the Sea Shore) but is there such a book on Diptera? I have the Collins Field Guide to Insects of Britain of Europe (3rd edition, Chinery) which is great as an overview but is far too generalised to be use to dipterists!
One book has been suggested so far (Colyer and Hammond) but it is out of print and S/H copies are going for riduiculous prices (up to £40!!), any others?
Thanks
Larry