Vll 



I' VGE 



Tribe Eucepliala 245 



Mycetophiloidea 246 



Bolitophilidse 247 



Mycetophilidae 248 



Keys to subfamilies 251 



Mycetophilinae 251 



Sciophilime 255 



Sciaridse 258 



Macroceridge 260 



Platyuridse 260 



Principal papers on North American Mycetophiloidea 262 



Culicoidea 263 



Psyehodidse 264 



Papers dealing with biology of Psychodidee 273 



Blepharoceridaa 274 



Principal papers on North American Blepharoceridse 276 



Culicidte 276 



Keys to subfamilies 278 



Some of the more important works on North American 



Culicidte A 279 



Dixhhe 279 



Paper containing account of North American Dixidas 280 



Chironomoidea 280 



Ceratopogonidfe 281 



Chironomida? 284 



Keys to subfamilies 286 



Tanypime 287 



Chironorninee 287 



Important papers on North American Chironomoidea 290 



Orphnephilidae 290 



Tribe Oligoneura 291 



Cecidomyioidea 292 



Cecidomyiidaa 293 



Important papers on North American Cecidomyiidre 297 



Bibionoidea 297 



Bibionidee 298 



Important papers on biology of North American species. . . . 300 



Scatopsidte 300 



Paper on North American Scatopsidte 302 



Simuliidee 302 



Principal papers on North American Simuliidse 304 



Addenda to Nematocera 305 



Trichocerinag 306 



Division Brachycera 307 



Tabular arrangement of families 



