During the past decade a considerable amount of work has been done on collecting and studying the crane-flies, Tipulidae, of New England. Johnson's basic list of the Diptera of this area (List of the Diptera or Two-Winged Flies. Occas. Papers Boston Soc. Nat. Hist., VII; 1925) recorded 264 nominal species, of which seven have been removed as being synonyms or as being based on mis-determinations. In the intervening years, 73 additions have been made to this list, bringing the corrected total to date to 330 species.