4-02 



NORTH AMERICAN DIPTERA. 



Psectrocladius, 115 

 Pselaphila, 329 

 Pseudapinops, 365 

 Pseudiastata, 390 

 Pseudochseta, 374 

 Pseudocutex, 109 

 Pseudodexia, 357 

 Pseudodinia, 296 

 Pseuilolfersia, 383 

 Pseudoniorina, 357 

 Pseudopyrellia, 343 

 Pseudorus, 202 

 Pseudotephritis, 277 

 Pseudotrichia, 209 

 Pseudotractocera, 373 

 Psila, 268 

 Psilid^, 267 

 Psilocephala, 207 

 Psilocurus, 199 

 Psilopa, 307 

 Psilopodinus, 222 

 Psilopus, 232 

 Psilotanypus, 113 

 Psilota, 253 

 Psorophora, 108 

 Psychoda, 93 



PSYCHODID^E, 92 



Ptecticiis, 169 

 Pterallastes, 257 

 Pterellipsis, 385 

 Pterocella, 277 

 Pterodontia, 185 

 Ptilodexia, 356 

 Ptilodegeeria, 367 

 l'tiloniyia, 307 

 Ptiolina, 163 

 Ptycboptera, 91 

 Pulicipbora, 238 

 Putoniella, 128 

 Pycnoglossa, 330 

 Pycnopogon, 200 

 Pyrellia, 343 

 Pyrgota, 274 

 P.vritis, 357 

 PyroplniMia, 253 



R 



Racodineura, 368 

 Rim bdopselaph us, 217 

 Rhachicerus, 162 

 Rhadiurgus, 204 

 Rbagoletis, 286 



Rhamphidia, 87 

 Rhamphinina, 357 



Rhainphomyia, 225 

 Rhaphiocera, 169 

 Rhaphidolabis, 90 

 Rbapbiomidas, 188 

 Rhaphirhynchus, 174 

 Rhaphium, 235 

 Rhombothyria, 357 

 Rhopalomera, 281 

 Rhopalomerid^, 280 

 Rhopaloniyia, 128 

 Rhopalosyrphus, 252 

 Rbicnoiissa, 296 

 Rhingia, 256 

 Rhingiopsis, 179 

 Rhinophora, 363, 379 

 Rbinotora, 281 

 Rhipidia, 87 

 Rhymosia, 139 

 Rhynchocephalus, 186 

 Rhyncbodexia, 354 

 Rbynchosciara, 139 

 Rhyphid/'S, 155 

 Rbypbus, 155 

 Rbypbolopbus, 88 

 Rbysops, 253 

 Ricbardia, 279 

 Rileymvia, 378 

 Rivellia, 275 

 Roederiodes, 223 

 Ruebsaamenia, 129 

 Runcboniyia, 108 



S 

 Sabetbes, 108 

 Salpingogaster, 254 

 Saproniyza, 290 

 Sapromyzid^, 288 

 Sarcionus, 232 

 Sarcoclista, 363 

 Sarcomacronycbia, 380 

 Sarcopbaga, 351 

 Sakcophagid/E, 348 

 Sarcopbagida, 351 

 Sarcopbilodes, 350 

 Sanliocera, 356 

 Sargus, 169 

 Saropogon, 201 

 Sayomyia, 107 

 Scaeva, 255 

 Scatella, 309 



