

proteus, 173 

 Ptiliidae, 297, 299, 346 

 Ptilodactyla, 367 

 Ptilodactylidae, 298, 299, 367 

 key to genera: adults, 367; larvae, 

 367 

 Ptilomerinae, 184 

 Ptilomyia, 464 

 key to species: adults, 467 



alkalinella, 467 



enigma, 467 



occidentalis, 467 



pleuriseta, 467 

 Ptilostomis, 256, 257 

 Ptychopteridae, 385 

 Punkies, 372, 424 

 Pupae, 71 



coarctate, 71 



exarate, 71 



obtect, 71 

 Pupipara, 372 

 Pygmy locusts, 154 

 Pygmy molecricket, 154 

 Pyralidae, 271, 274 



Quantitative sampling methods, 53 

 Ekman dredge, 53 

 drag type sampler, 54 

 Hess sampler, 54 

 miscellaneous, 57 

 plankton nets, 56 

 Surber sampler, 54 

 traps, 54 



Ramphocorixa, 191 



acuminata, 189, 190 

 Ranatra, 186, 207, 208, 292 

 key to species: 208 



asphalti, 208 



bessomi, 208 



brevicollis, 207, 208 



fusca, 207, 208 



quadridentata, 207, 208 

 Raphiinae, 454 

 Rasvena, 177 

 Rearing methods, 61 

 Remenus, 175 

 Renocera, 477 

 Respiration, 5 

 Rhabdomastix, 379 



californiensis, 384 



fasciger, 384 



trichophora, 384 

 Rhagionidae, 374, 376, 443 

 Rhagovelia, 185, 215, 216 

 key to species: 217 



distincta, 216, 217 



obesa, 217 

 Rhantus, 307, 308, 312, 313 

 key to species: adults, 321 



anisonychus, 322 



atricolor, 322 



binotatus, 322 



consimilis, 321 



gutticollis, 322 



hoppingi, 322 



tostus, 321 

 Rheumatobates, 213 

 Rhithrogena, 84, 85, 86 

 key to species: adult males, 86; 

 nymphs, 87 

 brunnea, 87 



decora, 86 



doddsi, 87 



flavianula, 86 



morrisoni, 87 



petulans, 87 

 Rhizelmis, 358, 360, 361 



nigra, 361 

 Rhogadinae, 290 

 Rhyacophila, 237, 243 



acropedes, 244 



angelita, 244 



basalis, 244 



betteni, 244 



bifila, 244 



chandleri, 244 



ecosa, 244 



grand is, 244 



harmstoni, 244 



karila, 244 



kernada, 244 



lineata, 244 



neograndis, 244 



nevadensis, 244 



norcuta, 244 



oreta, 244 



pellisa, 244 



phryganea, 244 



rayneri, 244 



rotunda, 244 



sequoia, 245 



sonoma, 245 



vaccua, 245 



valuma, 245 



vedra, 245 



velora, 245 



vepulsa, 245 



verrula, 245 



vocala, 245 

 Rhyacophilidae, 237, 241, 242, 243 

 key to genera: larvae, adults, 243 

 Rhynchophoromyces, 294 

 Rhysophora, 465 

 Rickera, 159, 175 

 Riffle beetles, 356 

 Riffle bugs, 215 

 Roederella, 459 

 Roederodes, 376, 457 



juncta, 459 

 Root maggots, 479 



Salda, 225 



buenoi, 226 



littoralis, 226 , 

 Saldidae, 182, 186, 188, 223 



key to genera: 225 

 Saldoida, 225 

 Saldula, 223, 225 

 key to species: 226 



andrei, 226 



arenicola, 227 



balli, 227 



bassingeri, 226 



c-album, 226 



comatula, 226 



coxalis, 227 



dispersa, 225 



explanata, 227 



fernaldi, 227 



hirsuta, 226 



interstitialis, 225 



luctuosa, 225, 226 



major, 223 



nigrita, 226 



notalis, 227 



opiparia, 227 



orbiculata, 226 



ourayi, 227 



pallipes, 223, 227 



pexa, 226 



505 

 Index 



saltatoria, 226 



severini, 226 



villosa, 226 



xanthochila, 225 

 Sandaliorrhyncha, 190 

 Sandflies, 424 

 Saraband us, 352, 353 

 Saroophaga, 482 



celarata, 482 



fletcheri,482 



jonesi, 482 



rileyi, 482 



sarraceniae, 482 



utilis,482 

 Sarcophagidae, 372, 375, 376, 482 

 Scatella, 466,474 

 key to species: adults, 474 



laxa, 474 



obsoleta, 474 



paludum, 474 



stagnalis, 474 



stagnalis var. pentastigma, 474 



subguttata, 474 



thermarum, 474 



troi, 474 

 Scatellini, 466, 473 

 Scatophagidae, 478 

 Scatophila, 466 

 key to species: adults, 473 



arenaria, 473 



bipiliaris, 473 



conifera, 473 



despecta, 473 



disjuncta, 473 



exilis, 474 



hesperia, 474 



ordinaria, 473 



pulchra, 473 



rubribrunnea, 474 



unicornis, 473 



variofacialis, 474 



viridella, 474 

 Scelionidae, 290 

 Schoenobiinae, 271 

 Schoenobius, 291 



melinellus dispersellus, 291 

 Sciomyza, 476 

 Sciomyzidae, 375, 476 

 key to genera: adults, 476; larvae, 

 pupae, 477 

 Sciomyzinae, 476 

 Scirtes, 350, 352, 353 



championi, 351, 353 



grandis, 351 



orbiculatus, 351 



tibialis, 350, 351 

 Scoliopelta, 439 

 Scopeumatidae, 375, 376, 478 

 key to genera: adults, 479; larvae and 

 puparia, 479 

 Scuttle bugs, 326 

 Secchi disc, 64 

 Sepedon, 476, 477 

 key to species: adults, 477 



armipes, 477 



bifida, 477 



borealis, 477 



fuscipennis, 477 



pacifica, 477 



praemiosa, 477 

 Sergentia, 422 

 Sericomyia, 461 



borealis, 461 

 Sericomyiinae, 461 

 Sericostoma 



griseolum, 269 

 Sericostomatidae, 242, 243, 269 



