;8o 



PERIPATUS MYRIAPODA INSECTA 



Praon, 550 



Pratt, on imaginal discs, 167 



Praying Insects, 242 



Prestwichia aquatica, 538 



Primary larva, 542 



Primary segmentation, 150 



Prisopus, 272 



Procephalic lobes, 97, 150 



Prochilides, 3^8 



Prochiliis australis, 324 



Proctodaeum, 123, 151 ; in Mtisca, 124 



Proctotrypidae, 533 -^?>% 



Production of sex, 499 



Pro-legs, 514 



Pronotal wing-rudiments, 344, 395 



Pronotum, 88, 100 ; oi Xylocopa, 490 



Pronymph, 164 



Propleuron, 100, 489 



Propodeon, 491 



Propodeum, 491, 492 



Proscopiides, 299, 809, 325 



Prosopistoma pxinctifrons, 435 



Prostemmatic organ, 105 



Prosternum, 88, 100 ; of Vespa crabro, 491 



Protection, 513, 515 



Protephemerides, 443 



Prothoracic dorsal appendages, 443 



Prothorax, 102 



Protoblast, 149 



Proto-cerebron, 118 



Protocranium, 92, 93 



Protodonates, 428 



Protoperlidae, 408 



Protosyngnatha, 75 



Prototracheata, ix, 4 



Proventriculus, 114, 124, 125, 450 



Psalis americana, 215 



Psectra distra, 466 



Pselapsognatha, 4^ 



Psenides, 524, 533 



Pseudoglomeris fornicata, 235 



Pseudoneuroptera, 342 



Pseudonychium, 105 



Pseudophyllides, 328 



Pseudo-sessile, 493 



Pseudotremia, 34, 35 



Psilocnemis dilatipes, 413 



Psocidae, 390 f. 



Psomts fasciatus, 390 ; P. heteromorphus, 



391 

 Pteromalini, 539 



Pteronarcys frigida, 398 ; P. regalis, 402 

 Pteroplistus, 331 

 Pterygogenea, 175, 196 

 Pulvillus, 105 



Pupa, 157, 169 ; active, 448, 465, 473, 479 

 Pupation, of Chalcididae, 550 ; oi Encyrtv.s, 



546 ; of Proctotrypids, 534, 535 

 Pupipara, 143 

 Pygidicrana hugeli, 202 

 Pygidium, 205 

 Pylorus, 127 



Pyramids of Egypt, 462 

 Pyrgoinantis singularis, 252 

 Pyrgomorpha grylloides, 303 

 Pyrgomorphides, 303, 309 



Queen, 144, 361, 378 



Eadial cell, 524 



Raphidia, 44'^ '> R- notata, 447 ; larva, 



448 

 Raphidiides, 444, 447 

 Raptorial legs, 242 f., 257, 463, 484 

 Ratzeburg, on Ano/iialon, 553 ; on tro- 

 chanter, 520 

 Ravages of Termites, 388 

 Reaumur, on ant-lions, 455 ; on circula- 

 tion of silkworm, 135 ; on galls, 525 ; 

 on may-flies, 438, 441 ; on sawflies, 

 512, 513 ; on spheroidal condition, 164 

 Receptaculum seminis, 139, 404 

 Rectal, gills, 421 f. ; respiration, 435 

 Rectum, 125 



Redtenbacher, on migratory locust, 297 ; 

 on wing, of Oligotoina, 353 ; of Termes, 

 359 

 Reduviid egg, 145 

 Reflex action, 250 

 Reproduction of lost parts, 213, 265, 



266 

 Reproductive organs of Ephemeridae, 439 

 Resemblance, of eggs to seeds, 265, 270, 

 271 ; of one part to another, 208, 266 ; 

 of parasite to host, 532 ; histological, 

 271 ; of Trichoptera to moths, 484 ; to 

 bark, 251 ; to flowers, 254, 255, 256 ; 

 to inorganic tilings, 253, 304, 307 ; to 

 leaves, 255, 267, 268, 322 f., 323 ; to 

 lichens, 253 ; to other creatures, 235 ; 

 to other Insects, 197, 215, 2?5, 251, 

 274, 300, 301, 323, 324, 504, 513, 550 ; 

 to vegetation, 200, 260, 274 

 Respiration [and respiratory organs], 128- 

 132, 431 ; by integument, 483 ; by 

 setae, 435 ; of nymphs of Odonata, 

 420 f. ; of Perlidae, 401 f. 

 Respiratory chamber, 434 

 Retinula, 98 



Reuter on ventral tube, 192 

 Rhabdom, 98 

 Rhipipteryx, 337, 338 

 Rhizotrogus egg-tubes, 138 

 Rhodites rosae, 498, 527, 528, 531 ; larva, 



532 ; parasite, 539 

 Rhyacoph Hides, 4^3 

 Rhyacophylax, 482 

 Rhynchota, 175 

 PJiyparohia maderae, 237 

 Rhyssa persuasoria, 554 

 Riley, on caprification, 549 ; on Cephus, 

 505 ; on development of Caloptenvs, 2C8, 

 289 ; on galls, 526 f . ; on Katydids, 

 320 ; on locust swarms, 293 ; on Micro- 



