IV 



PAGE 



Family Limnobiidae 207-238 



Keys to subfamilies 208 



Cylindrotominae 210 



Limnobiinae 212 



Pediciinae 216 



Limnophilinae 220 



Ehamphidiinae 226 



Eriopterinae 227 



Hexatominae 232 



Tiichocerinae 234 



Papers on the Biology of North American Limnobiidae 238 



Family Ptychopteridae 238-241 



Family Rhyphidae 241-245 



Tribe Eucephala 245-291 



Superf amily Mycetophiloidea 246-262 



Family Bolitophilidae 247-248 



Family Mycetophilidae 248-258 



Keys to subfamilies 251 



Mycetophilinae 251 



Sciophiliuae 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 



