British soldierflies and their allies : an illustrated guide to their identification and ecology : covering all flies (Diptera) in the families Acroceridae, Asilidae, Athericidae, Bombyliidae, Rhagionidae, Scenopinidae, Stratiomyidae, Tabanidae, Therevidae, Xylomyidae and Xylophagidae / by Alan E. Stubbs and Martin Drake ; with photograohic colour plates by David Wilson.    Reading : British entomological and natural history society, 2014 . ix, 528 stran