578 



PERIPATUS — MYRIAPODA INSECTA 



Orders, 172 



Orieutatiou, 112 



Origin of wings, 206 



Orl-fly, 445 



Ormerod, Miss, on importation of locusts, 

 299 



Ornament, 200, 215, 233 f., 243, 244, 

 282, 302, 313, 339 



Orphaiiia denticauda, 321 



Orthodera ministralis, 249 



Orthoderides, 251, S59 



OrthoiMcUa, 453 



Ortlioptera, 172, 198-340, 407 



Oryssidae, 5t?6* 



Oryssiis abietinus, 506 ; 0. sayi, 506 



Osboru on Meuqp07i, 350 



Osraylides, 4^6 



Osmylina, 4(>S 



Osmylus chrysops, 341 ; larva, 466 ; 0. 

 maculatus, 466 



Osteu Saclcen on similar gall-flies, 632 



Ostia, 48 f., 133, 435 



Oudemans on Thysanura, 182 



Oustalet on Odonata, 422, 423 



Outer margin of wing, 108 



Ovaries, 137, 138 ; of earwigs, 211 ; of 

 Oedipoda,, 283, 284 ; of Perkt, 404 ; of 

 Thysanura, 188 



Oviduct, 139, 392 



Ovipositiou, 229, 246, 265, 290, 291, 440 ; 

 of Agriotypus, 557 ; of Cynipidae, 527 

 f., Adler on, 529 ; of Encyrtus, 545 ; 

 of Ichneumon, 555 ; of iu(juiline gall- 

 flies, 532 ; of Meconevia, 321 ; of Pele- 

 ciiius, 564 ; of Pimpla, 553 ; of Poda- 

 grioii, 546 ; of sawflies, 513 ; of Sirexj 

 609 ; of Xipihidimn, 321 



Ovipositor, 110, 652, 654 ; Cynipid, 524 ; 

 oi Lociista, development, 314, 315 



Owen, Ch., 40, 78 



Oxyethira, 484 ; 0. costalis, larva, 485 



Oxyhaloides, 234, S4I 



Oxyura, 533, 534 



Pachycrepis, 550 



Pachytylus cinerascens, 293, 297, 298, 299, 

 308 ; P. marmoratus, 298 ; P. migrator- 

 ioides, 298 ; P. migratorius, 298, 299, 

 308 ; P. nigrofascialus, 285, 298 



Packard, on cave-Myriapods, 34 ; on air 

 sacs of locusts, 283, 294 ; on classifica- 

 tion, 173 ; on development of Ijiphrx, 

 419 ; on may-flies, 430 ; on metamor- 

 phosis of Bomhus, 497 ; on scales, 397 ; 

 on spiral fibre, 129 



Pad, 105 



Paedogenesis, 142 



Pagenstecher on development of Mantis, 

 247 



Palaeacrididae, 309 



Palaeoblattariae, 239 



PalaeobhiUina doumllei, 238 f. 



Palaeocampa, 73 



PalaeodictyoiDtera, 486 



Palaeomantidae, 259 



Palaeontology, 178 



Palaeophlebia supierstes, 427 



Palaeozoic, Myriapods, 76 ; Insects, 343, 

 486 



Palingenia bilineata, 430 ; P.feistnuintelii, 

 443 ; P. papuana, 441 ; P. virgo, 431 



Palmen, on dragon-fly nymphs, 423 ; on 

 Ephemeridae inflation, 439 ; on gills of 

 Perlidae, 402 ; on rectal gills, 422 ; on 

 tracheal system of immature Ephe- 

 meridae, 436 



Pahnon, 546 



Palmula, 105 



Palophus centccurus, 275 



Palpares, 454 



Palpiger, 95 



Paljras, 95 ; of Pieris brassicae, 122 



Pambolus, 561 



Pannihagides, 303, 310 



Panchlora viridis, 229 



Panchlorides, ZJfl 



Panestliiides, 24I 



Panisciis virgatus larva, 555 f. 



Panorpa, 450, 463 ; leg, 104 ; P. com- 

 munis, 449 ; larva, 452 



Panorpatae, 175, 453 



Pauorpidae, 449, 451 



Pantel on phouatiou of Cuculligera, 304 



Pajiiriidae, 191 



Paraderm, 164 



Paraglossa, 95, 96, 96 



Parapteron, 100, 101, 102 



Parasites, 540 f., 643 ; external, 555 



Parasitica, 520, 521 



Parasitism, 621 f., 635, 559, 660 



Parthenogenesis, 141, 481, 497, 516 f. 

 630 f., 647 ; utility, 517 



Passalidae, mandibles, 95 



Patagia, 102, 103 



Patagonia, 459 



Paunch, 348, 360, 446, 448 



Paurometabola, 158, 199 



Pauropidae, 33, 42, 47 



Pauropoda, 47, 57, 77, 79 ; structure, 62 



Pauropus, 47 



Pazlavsky on bedeguar, 627 



Pedicellate, 519 



Peduuculate body, 495 



Pelecinidae, 563 



Pelecinus polyturatm\ 563 



Pelopaeus spinolae foot, 106, 106 



Perez on Termes, 366, 382 



Perga lewisii, 517 



Periblast, 149 



Pericardial septum, 134 ; sinus, 134 ; 

 tissue, 135 



Peringueyella jocosa, 325 



Peripalus, 1, 6, 23, 77, 79 ; tracheae, 3, 

 14, 15 ; affinities, 4 ; external features. 



