COLOURS OF ANIMALS.) BIBLIOGRAPHY.-J. Reighard, "An experimental field study of Bibliography.-J. Reighard, "An experimental field study of Warning Coloration," Papers from the Tortugas Laboratory of the Carnegie institution of Washington (1908) ; W. H. Longley, Amer. Nat. (1917) ; G. H. Thayer, Concealing Coloration in the Animal Kingdom (1918) ; E. B. Poulton, Animal Coloration. (W. H. L.) the name given, especially in North America, to small insects of the genus Chauliodes and allied genera, related to the alder-flies (q.v.). Fish-flies belong to the order Neuroptera (q.v.), sub-order Megaloptera. The larvae are aquatic.