IV 



PAGE 



Family Limnobiidae 207-238 



Keys to subfamilies 208 



Cylindrotominae 210 



Limnobiinae 212 



Pediciinae 216 



Limnophilinae 220 



Rhamphidiinae . . . ' 226 



Eriopterinae 227 



Hexatominae 232 



Trichocerinae 234 



Papers on the Biology of North American Limnobiidae.- 238 



Family Ptychopteridae 238-241 



Family Ehyphidae 241-245 



Tribe Eu-cephala 245-291 



Superfamily Mycetophiloidea ' . . 246-262 



Family Bolitophilidae 247-248 



Family Mycetophilidae 248-258 



Keys to subfamilies 251 



Mycetophilinae 251 



Sciophilinae 255 



Family Sciaridae 258-260 



Family Macroceridae 260 



Family Platyuridae 260-262 



Principal papers on North American Mycetophiloidea 262 



Superfamily Culicoidea 263-280 



Family Psychodidae 264-274 



Papers dealing with Biology of Psychodidae 273 



Family Blepharoceridae 274-276 



Principal papers on North American Blepharoceridae 276 



Family Culicidae 276-279 



Keys to subfamilies 278 



Some of the more important works on North American Culicidae. . 279 



Family Dixidae 279-280 



Paper containing account of North American Dixidae 280 



Superfamily Chironomoidea 280-291 



Family Ceratopogonidao 281-284 



Family Chironomidae 284-290 



Keys to subfamilies 286 



Tanypinae 287 



Chironominae 287 



Important papers on North American Chironomoidea 290 



Family Orphnephilidae 290-291 



Tribe Oligoneura 291-305 



Superfamily Cecidomyioidea 292-297 



Family Cecidomyiidae 293-297 



Important papers on North American Cecidomyiidae 297 



Superfamily Bibionoidea 297-305 



Family Bibionidae 298-300 



Important papers on biology of North American species 300 



Family Scatopsidae 300-302 



Paper on North American Scatopsidae 302 



Family Simuliidae 302-305 



