INDEX 



397 



Oaks, insects of, 195 



Oberea, eyes of, 24 



Obtect pupa, *i35 



Occipital foramen, 23^24 



Occiput, 23 



Ocelli, *25; structure of, *8;; vision by, 87 



Ockler, 346 



Ocular, neuromere, *36; segment, 36 



Odonata, abdominal segments of, 52; copula- 

 tion of, 56; denned, 12; ocelli, 25; origin, 

 18; spiracles, 52 



Odors, 65; efficiency of, 232 



Odynerus, 207 



(Ecanthus, abdominal appendages of, 53, 

 *i22; embryo, "'122; stridulation, 83 



(Ecodoma, 277 



(Ecophylla, 273 



(Edipoda, dorsal vessel of, *ioo 



(Ends, distribution of, 303 



(Enocytes, 104, *ic>5 



(Esophageal commissures, *73 



(Esophagus, *Q3 



CEstridae, 216 



O'Kane, 386 



Olfactory organs, 78, *7Q, *8o, *8i 



Oligocene insects, 319, 322 



Oligotoma, *q 



Ommatidium, 88, *Sg 



Onthophagus, mandible of, *3O 



Orchelimum, stridulation of, 83 



Orders of insects, 6, 17, *2o 



Orgy ia, olfactory organs of, 80; parasites of, 



257 



Oriental realm, 309 



Origin of Arthropods, *6; of insects, *5 



Orthoptera, abdominal segments of, 52; de- 

 nned, 8; origin, 18; stridulation, 83, *84 



Osmeterium, *6$ 



Osmia, 208 



Osmoderma, cocoon of, 136 



Osten-Sacken, 350 



Ostium, *ioo 



Oudemans, 363 



Oustalet, 361, 369 



Ovaries, 113, *ii4, *ii5 



Ovariole, *n6 



Oviducts, 113, *n5 



Ovipositor, *54, *55, *58 



Ovogenesis, 118 



Ovum, of Musca, *n8; Vanessa, *n6 



Ox-warble, *i3i, 217, 326 



Paasch, 353 



Packard, on Anophthalmus, 91; Arthropoda, 

 6; classification, 7; Mantispa, 19, 132; 

 olfactory pits, 80; origin of Coleoptera, 19; 

 relationships of orders, 18, 19; segmenta- 

 tion, 21 ; types of larvae, 130; wings, 45; 

 33 2 , 3355 340, 34i, 342, 343, 347, 348, 350, 

 35i, 352, 355, 361, 365, 367, 368, 374, 383, 

 386 



Paedogenesis, 117 



Pagenstecher, 363 



Palaearctic realm, 309 



Palceoblattina, *3i9 



Palaeodictyoptera, 324 



Palmen, 361, 363 



Palmer, 377 



Palpifer, *29, *3o, 31 



Palpiger, *29, *3i 



Palpus, *2 9 , * 3 o, * 3 i, * 33 , * 34 , * 35 



Pankrath, 355 



Panorpidae, 14; legs of, 43 



Papilio, colors of, 165; egg, *i28; facets, 25; 

 head of pupa, *i35; melanism, 165; mimi- 

 cry, 185, 1 88; osmeterium, *6$; protective 

 resemblance, 180; merope, mimicry by, 

 1 86, 1 88; sexual coloration of, 169 



Paraglossa, *29, *3i 



Paralysis, infantile, 252 



Paraponyx, *iog, 156 



Paraptera, 38 



Parasita, defined, *i3 



Parasitic insects, 215, 254, 258; in relation 

 to birds, 226 



Parasitism, 217, 254; economic importance 

 of, 257 



Parker, on phototropism, 289; 382 



Parthenogenesis, 116, 199, 269, 272 



Passalus, cocoon of, 136; stridulation, 83 



Patagia, 38 



Patten, 355, 365 



Pawlovi, 353 



Pawlowa, 359 



Peckham, on behavior, 294, 296, 298, 379, 381 



Pecten, *2io, 211 



Pectinate, *26 



Pedicel, *26 



Pediculidae, 216 



Pediculus, *i3, 216 



Pellagra, 252 



Pelocoris, leg of, *42 



Penis, 55, *57, 114 



Pepsis, 259 



Perez, C., 369 



Perez, J., 348, 369 



Pericardial chamber, *ioo, *ii2 



Peripatus, characters of, *3, 4; systemic 

 position, 4 



Periplaneta, olfactory pits of, 80 



Peripodal, cavity, 149; membrane, 149; sac, 

 149 



Perla, olfactory pits of, 80 



Perlidae, 10, *n; nymph, *i3i; tracheal 

 gills, 109 



Permian insects, 321 



Petiolata, 17 



Pettigrew, 345 



Petunia, *207 



Peytoureau, 349, 364 



Pflugstaedt, 347 



Phagocytes, 104, 148 



Phanaus, legs of, 41, *42 



Pharynx, 93 



Phasmidae, 8, *i79 



Phlegethontius, head of moth, *33; larva, *43; 

 moth, *2O7; parasitized larva, *256 



