504 

 Index 



Phyllolabis (cont.) 



myriosticta 



sequoiensis 

 Phylocentropus, 238, 249 

 Physemus, 364 



minutus, 364 

 Physical factors, measurement, 63 

 current velocity, 64 

 light, 64 



relative humidity, 64 

 temperature, 63 

 Phytochironomus, 423 

 Pictetia, 175 

 Pilaria, 379, 381 

 Piletocera, 271 

 Pilimas, 444 

 key to species: 446 



beameri, 446 



californica, 446 

 Plagiopsis, 465 

 Plateumaris, 368 

 Plathemis, 124, 126, 134 

 key to species: adults, 134; naiads, 

 135 



lydia, 134, 135 



subornata, 135 

 Plecoptera, 72, 155 

 key to families and genera: adults, 



157; nymphs, 160 

 anatomy, nymph, 156 

 preserving and collecting, 156 

 taxonomic characters, 157 

 Pleidae, 184, 187 

 Pnigodes, 370 



setosus, 370 

 Podmosta, 166, 167 

 Podonomiinae, 407, 410, 411, 414 

 Podonomus, 408, 410, 411 

 Podura, 76 



aquatica, 76 

 Poduridae, 76 " 

 Poduroidea, 76 

 Poecilographa, 477, 478 



decora, 478 

 Polycentropus, 249 

 key to species: males, 249 



flavus, 249 



halidus, 249 



variegatus, 249 

 Polymeda, 379, 381 

 species: 383-384 



alicia, 383 



bipartita, 383 



bisulca, 384 



burra, 384 



cana, 384 



cinctipennis, 384 



crickmeri, 384 



dulcis, 384 



dyari, 384 



laticeps, 384 



melanderi, 384 



melanderiana, 384 



pilipes var. anomala, 384 



rainieria, 384 



sparsa, 384 



tripartita, 384 

 Polynema, 291 



natans, 291 

 Polypedilum, 410, 411, 412, 421 



aviceps, 421 



digitifer, 421 



isocerus, 421 



laetum, 421 



needhami, 421 



pedatum excelsius, 421 



scalaenum, 421 



Polyphaga, 293, 297, 298 

 Polytrichophora 

 key to species: adults, 467 



conciliata, 467 



orbitalis, 467 

 Pompilidae, 289, 290 

 Pond fish cuiture, 38 

 Ponds, 18 



bottom profiles, 19 

 Pond skaters, 211 

 Pontomalota, 348 

 key to species: adults, 348 



bakeri, 348 



californica, 348 



nigriceps, 348 



opaca, 348 

 Potamanthus, 82, 83 

 Potomyia, 237, 250, 251 

 Predaceous water beetles, 305 

 Prestwichia, 290, 291 



aquatica, 292 

 Priocnemis, 290 



flavicornis, 290 

 Priocnemoides, 290 



fulvicornis, 290 

 Prionocera, 378, 381 

 Prionocyphon, 350, 352, 353 



discoideus, 350, 351, 353 



limbatus, 350, 351, 352 



serricornis, "350 

 Probezzia, 426, 437 



flavonigra, 437 

 Procanace, 475 



nigroviridis, 475 

 Procladius, 408, 410, 411 



bellus, 414 



culiciformis, 414 

 Proclinopyga, 457 

 key to species: males, 458 



amplectens, 458 



monogramma, 459 

 Proctotrupoidea, 289, 290 

 Prodiamesa, 408, 410, 412 

 Progomphus, 114 



obscuris, 114 



boreal is, 115 

 Proisotoma, 77 



aquae, 77 



laguna, 77 

 Promoresia, 358, 360, 362 

 Pronoterus, 325 

 Prosimuluim, 401, 403 

 key to species: females, 403; males, 

 pupae, 404 



dicum, 404 



exigens, 404 



fulvum, 403, 404 



hirtipes, 404 



novum, 403, 404 



onychodactylum, 403, 404 



travisi, 404 

 Prostoia, 166, 167 

 Protanyderus, 385 



vanduzeei, 385 



vipio, 385 

 Protenthes, 414 

 Protochauliodes, 231 

 key to species; adults, 232 



aridus, 231, 233 



infuscatus, 231, 232 



minimus, 233 



montivagus, 232 



simplus, 233 



spenceri, 233 

 Proto-heteroptera, 184 

 Protoplasa, 385 



fitchii, 384 





Protoptila, 243, 246 



coloma, 246 

 Protosaldidae, 184 



Psephenidae, 293, 298, 299, 350, 365 

 key to genera: adults, 365; larvae, 

 365 

 Psephenoides, 293 

 Psephenus, 365, 366 

 key to species: adults, 366 



calaveras, 366 



falli, 366 



haldemani, 366 



lanei, 366 



veluticollis, 366 

 Pseuderipternus, 272, 291 

 Pseudiron, 105 



Pseudochironomus, 409, 411, 412, 419 

 Pseudochorutes, 76 

 Pseudocloeon, 99, 101, 104 

 Pseudocorixa, 191 

 Pseudohecamede, 464 



abdominalis, 467 

 Pseudoleon, 125, 126, 129 



superbus, 129 

 Pseudolimnophila, 379, 381 



luteipennis, 384 

 Pseudonymus, 337 



brachycercus, 337 



leptocercus, 337 

 Pseudostenophilax, 261 

 Psilodiamesa, 408, 410, 412 

 Psilopa, 465, 468 

 key to species: adults, 468 



compta, 468 



leucostoma, 468 



olga, 468 

 Psilopinae, 464, 466 

 Psilopini, 464, 468 

 Psilotreta, 263 



frontalis, 263 

 Psorophora, 392 



confinnis, 395 

 Psychoda, 386, 387, 388 

 key to species: adults, 388; larvae, 

 388 



alternata, 388 



cinerea, 388, 389 



phalaenoides, 388, 389 



severini, 388, 389 



siema, 388 

 Psychodidae, 373, 375, 376, 386 

 key to genera: adults, 387; larvae, 

 388; pupae, species, 388 

 Psychoglypha, 259, 261 



avigo, 261 



bella, 261 



ormiae, 261 

 Psychomyia, 249, 250 



flavida, 250 



lumina, 250 



nomada, 250 

 Psychomyiidae, 237, 242, 248 



key to genera: adults, larvae, 249 

 Psychrometer, sling, 64 

 Ptenothrix, 78 



maculosa, 78 

 Pterobosca, 424, 430 

 Pteromicra, 476 

 Pteronarcella, 159, 161, 172 



badia, 172 



regularis, 172 

 Pteronarcidae, 157, 160, 172 

 key to genera, subgenera and species: 

 172 

 Pteronarcys, 156, 159, 161, 172 



californica, 173 



princeps, 173 



