Vll 



PV6E 



Tribe Eucepliala 245 



Mycetophiloidea 246 



Bolitophilidae 247 



Mycetophilidse 248 



Keys to subfamilies 251 



Mycetophilinse 251 



Sciophilinffi 255 



Sciaridse 258 



Macroceridae 260 



Platyuridae 260 



Principal papers on North American Mycetophiloidea 262 



Culicoide'a 263 



Psychodidag • 264 



Papers dealing with biology of Psychodidse 273 



Blepharoceridas 274 



Principal papers on North American Blepharoceridas 276 



Culicidas 276 



Keys to subfamilies 278 



Some of the more important works on North American 



Culicidse 279 



Dixidse 279 



Paper containing account of North American Dixidas 280 



Chironomoidea 280 



CeratopogonidPB 281 



Chironomidse 284 



Keys to subfamilies 286 



Tanypinse 287 



Chironominas 287 



Important papers on North American Chironomoidea 290 



Orphnephilidse 290 



Tribe Oligoneura 291 



Cecidomyioidea 292 



Cecidomyiidffi 293 



Important papers on North American Cecidomyiidse 297 



Bibionoidea 297 



Bibionidffi 298 



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



Scatopsidse 300 



Paper on North American Scatopsidae 302 



Simuliidae 302 



Principal papers on North American Simuliidse 304 



Addenda to Nematocera 305 



Trichocerinae 306 



Division Brachycera 307 



Tabular arrangement of families 308 



