478 
) 
Muller, J., “mosaic”’’ theory of, 111, 
425 
Murgantia, spread of, 382 
Murray, 461 
Musca, egs of, *1s0 3; facets.of, 32); 
fungus of, *258; moults, 165 ; ovum, 
*146; in relation to typhoid fever, 
305 
Muscide, cardiac valve of, *119; ima- 
ginal buds of, *179, 181 
Muscles, circular and_ longitudinal, 
*121; of cockroach, *56, *86; of leg, 
255.5 (507) number, Os) 
*87; of wing, 64, *65 
Muscular, power, 88; system, &5 
Mutation theory, 247; versus natural 
selection, 249 
Mutilla, stridulation of, 104 
Myriopoda, the term, 5 
Myrmecocystus, *337 
Myrmecodia, 275 
Myrmecophana, mimicry by, 
Myrmecophilism, 340 
Myrmedonia, 343 
Myrmeleon, digestive system of, *118; 
predaceous, 308; silk glands, 85 
Myrmica, *343 
Mystacides, androconia of, 80 
structure, 
Co 
5220 
Nagel, 428 
Nassonow, 438 
Natural selection, 238 
Nearctic realm, 375 
Necrophorus, 280, 314 
Needham, on digestion, 119; venation, 
58; 417, 431, 446, 455 
Nemobius, leg of, *53 
Neotropical realm, 375 
Nepa, respiration of, 189 
Nerves, of head, *91; structure, *93 
Nervous system, 89; development of, 
US0y SLGA, TVS 5 
Nervures, 58 
Neuration, 58, *59, *60, *61 
Neurilemma, *93 
Neuroblasts, *154 
Neuromeres, defined, 45, 152; of head, 
*46, 90 
Neuroptera, defined, 16; metamor- 
phosis of, 24, *163 
Newbigin, 449, 451 
Newport, on metamorphosis, 
muscles, 86; 414, 423, 424, 
433, 434 
Newton, 425 
Notolophus, olfactory organs of, 102 
Notonecta, *185 ; locomotion of, *186; 
respiration, 189 
183; 
431, 
INDEX 
Notum, 47 
Novius, 314, 395, 406 
Nucleolus, 146 
Number of insects, 27 
Nusbaum, 437, 441 
Nuttall, 456 
Nymph, 159 
Oaks, insects of, 252 
Oberea, eyes of, 31 
Obtect pupa, 167, *168 
Occipital foramen, *30 
Occiput, 30 
Ocelli, *32; structure of, *109; vision 
by, 109 
Ockler, 417 
Ocular, neuromere, *46; segment, 45 
Odonata, abdominal segments of, 66; 
copulation of, 71; defined, 13; 
ocelli, 32; origin, 23; spiracles, 66 
Odors, 82; efficiency of, 298 
Odynerus, 268 
(Ecanthus, abdominal appendages of, 
67, *152; embryo, *152; stridula- 
tion, 105 
(Ecodoma, 337 
(Ecophylla, 333 
(Edipoda, dorsal vessel of, *125 
(neis, distribution of, 370 
CEnocytes, *131 
(Esophageal commissures, *91 
(Esophagus, *117 
(Estride, 278 
Olfactory organs, 98, *99, *100, *1o1 
Oligocene insects, 385, 389 
Oligotoma, *12 
Ommatidium, 110, *112 
Onthophagus, mandible of, *38 
Orchelimum, stridulation of, 105, 106 
Orders of insects, 8, 21, *25 
Orgyia, olfactory organs of, 102; para- 
sites of, 312 
Oriental realm, 376 
Origin of Arthropods, *7; of insects, 6 
Orthoptera, abdominal segments of, 
66; defined, *10; origin, 22; stridu- 
lation, 104, *105, 106 
Osborn, 453 
Osmeterium, *82 
Osmia, 268 
Osmoderma, cocoon of, 169 
Osten-Sacken, 422 
Ostium, *125 
Oudemans, 438 
Oustalet, 434, 445 
Ovaries, 140, *141, *142 
Ovariole, *143 
Oviducts, 140, *141, *142 
