CRICKETS mimicking sand wasps, 98.
CRYPTODONTIA, 299. Cucullia verbasci, 120. CURCULIONIDE, often protected by hard covering, 71; similar co- lours of two sexes, 114. Cuviera squamata, 258. Cyclopeplus batesii, 92. CYNOPITHECUS, 196. Cynthia arsinoë, 172.
DANAIDÆ, the subjects of mimi- cry, 85, 86.
Danais erippus, 88; chrysippus, 112; sobrina, 179; aglaia, 179; tytia, 180.
DARWIN, Mr., his principle of uti- lity, 47; on cause of colour in flowers, 127, 262; on colours of caterpillars, 118; on sexual co- louration, 260; his metaphors liable to misconception, 269; criticism of, in North British Review, 291.
DESERT animals, colours of, 49, 50. DIADEMA, species of, mimic Danai- dæ, 86, 87: female with male colouration, 112. Diadema misippus, 112; D. ano- mala, 113.
Diaphora mendica, 89. DICNYODONTIA, 299. DICROURUS, 253.
Diloba cæruleocephala, 120. DIMORPHISM, 145; in beetles, 155; in birds, 155; illustrated, 157. DINOSAURIA, 298. DIPTERA mimicking wasps and bees, 97.
Doliops curculionides, 94.
DOMESTICATED animals, their essen- tial difference from wild ones, 38-41.
DRUSILLA, mimicked by three ge-
Drusilla bioculata, 180. DYTISCUS, dimorphism in, 155.
EGYPTIAN architecture, intro- duced, 225.
Elaps fulvius, E. corallinus, E. lem- niscatus, 101; E. mipartitus, E. lemniscatus, E. hemiprichii, 102. ENODES, 196.
ENNOMUS, autumnal colours of this genus, 62.
Eos fuscata, dimorphism of, 155. EQUUS, 299.
Eronia tritea, 172; valeria, 172. Eroschema poweri, 93.
ERYCINIDE mimic Heliconidæ, 84. Erythroplatis corallifer, 92. ESTRELDA, sexual colouring and nidification of, 243.
EUCNEMIDE, mimicking a Malaco- derm, 93.
Eudromias morinellus, 251. Euglossa dimidiata, 98. EUMORPHIDE, a protected group,
72; imitated by Longicorns, 92. EUPLOEA, local modifications of co- lour in, 173.
Euplaa midamus, 87-113, 179; E. rhadamanthus, 87, 179. Eurhinia megalonice, 172; poly- nice, 172.
EURYLAMIDE, sexual colouring and nidification of, 243.
EXTINCT animals, intermediate forms of, 298.
FEMALE birds, colours of, 114; sometimes connected with their mode of nidification, 240; more exposed to enemies than the males, 248.
FEMALE butterflies generally dull- coloured, 259.
FEMALE insects, mimicry by, 110, 259; colours of, 113. FEMALE sex, has no incapacity for
as brilliant colouration as the male, 247; in some groups re- quires more protection than the male, 258.
FISHES, protective colouring of, 55. FISSIROSTRAL birds, nests of, 238. FLOWERS, causes of colour in, 127. FLYCATCHERS, genera of, absent from Celebes, 177.
FORBES, EDWARD, objections to his theory of Polarity, 17-23. FORCE is probably all Will-force, 366.
GALÁPAGOS, 10.
GALTON, Mr., on range of intellec- tual power, 339. GANOCEPHALA, 298. Gastropacha querci, protective co-
lour and form of, 62. GAUDRY, M., on fossil mammals of Greece, 299. GEOGRAPHICAL distribution, de- pendent on geologic changes, 1; its agreement with law of in- troduction of new species, 9; of allied species and groups, 12. GEOLOGICAL distribution analogous to geographical, 13.
GEOLOGY, facts proved by, 2-5. GIRAFFE, how it acquired its long neck, 42.
GLEA, autumnal colours of this genus, 62.
GOULD, Mr., on sexual plumage of Gray Phalarope, 115; on incu- bation by male Dotterell, 115. Grallina australis, 254.
GREEN birds almost confined to the tropics, 52.
Gymnocerus cratosomoides, 94. Gymnocerous capucinus, 96. Gymnocerous dulcissimus, 97. GUNTHER, Dr., on arboreal snakes, 55; on colouring of snakes, 102. Gynecia dirce, 59.
HABITS, often persistent when use of them has ceased, 234; of children and savages analogous to those of animals, 235; if persistent and imitative may be termed hereditary, 235, 236. HAIRY Covering of Mammalia, use of, 344; absence of, in man re- markable, 345; the want of it felt by savages, 346; could not have been abolished by natural selection, 348.
Harpagus diodon, 107. HEILIPLUS, a hard genus of Cur- culionidæ, 94.
HELICONIDE, the objects of mimi- cry, 77; their secretions, 88; not attacked by birds, 79; some- times mimicked by other Heli- conidæ, 85. HELLADOTHERIUM, 300. HEMIPTERA, protected odour, 72.
HERBERT, Rev. W., on song of birds, 221.
HESPERIDE, probable means of protection of, 176.
HESTHESIS, longicorns resembling ants, 96.
Hestia leuconoi, 180.
HEWITSON, Mr., 131. HIPPARION, 299, HIPPOTHERIUM, 299.
HISPIDE, imitated by Longicorns, 92.
HOLOTHURIDE, 258.
Homalocranium semicinctum, 101. HOOKER, Dr., on the value of the
"specific term," 165. HOUSES of American and Malay races contrasted, 213. HUXLEY, Professor, on "Physical Basis of Life," 362, on volition, 368.
in many cases assumed without proof, 205; if possessed by man, 206; supposed, of Indians, 207; supposed to be shown in the construction of birds' nests, 211. INTELLECT of savages compared with that of animals, 341. INTELLECTUAL Power, range of, in man, 339.
Iphias glaucippe, 172.
ITHOMIA, mimicked by Leptalis, 83. Ithomia ilerdina, mimicked by four groups of Lepidoptera, 84.
JAVA, relations of, to Sumatra and Borneo, 193.
JAMAICA Swift altering position of nest, 228.
JERDON, Mr., on incubation by males in Turnix, 115.
KALLIMA inachis and Kallima paralekta, wonderful resem- blance of, to leaves, 59-61.
LAKES as cases of imperfect adapt- ation, 278.
LANIADE, sexual colouring and ni- dification of, 245.
LAMARCK's hypothesis very dif- ferent from the author's, 41. Larentia tripunctaria, 63, LAW which has regulated the in- troduction of new species, 5; confirmed by geographical dis- tribution, 9; high organization of ancient animals consistent with, 14; of multiplication in geometrical progression, 265
of limited populations, 265; of heredity, 266; of variation, 266; of change of physical con- ditions, 266; of the equilibrium of nature, 266; as opposed to continual interference, 268. LAYCOCK, Dr., on law of " uncon-
scious intelligence," 360. LEAF BUTTERFLY, appearance and habits of, 59-61.
LEPIDOPTERA, especially subject to variation, 132.
LEPTALIS, species of mimic Heli- conidæ, 82; gain a protection thereby, 259.
LESTER, Mr. J. M., on wood-dove
LEVAILLANT, on formation of a nest, 224.
Limenitis archippus, 88. Limenitis limire, 172; procris, 172. LIZARDS refusing certain moths and caterpillars, 121; devour- ing bees, 121.
LOCAL FORMS, 158.
LOCAL variation of form, 169; of colour, 173; general remarks on, 174; in Celebesian butter- flies, probable use of, 175. LOCUSTIDE, adaptive colouring of, 64.
LUMINOUSNESS of some insects a protection, 71. LYCENIDE, probable means of pro- tection of, 176.
MAMMALS, mimicry among, 107. MAN, does he build by reason or imitation, 212; his works mainly imitative, 225; antiquity of, 303,. 322; difference of opinion as to
his origin, 304; unity or plural- ity of species, 305; persistence of type of, 306; importance of mental and moral characters, 312; his dignity and supremacy, 324; his influence on nature, 326; his future development, 326; range of intellectual power in, 339; rudiments of all the higher faculties in savage, 341; his feet and hands, difficulties on the theory of natural selec- tion, 349: his voice, 350; his mental faculties, 351; difficulty as to the origin of the moral sense in, 352; development of, probably directed by a superior intelligence, 359.
MANTIDE, adaptive colouring of, 64; mimicking white ants, 98. MALACODERMS, a protected group, 93.
MATTER, the nature of, 363; Mr.
Bayma on, 363; is force, 365. MECHANITIS and Methona, mi- micked by Leptalis, 83. MECOCERUS, dimorphism of, 155. Mecocerus gazella, 94.
MEGACEPHALON, 196.
MEGAPODIDE, sexual colouring and
nidification of, 246.
MEROPOGON, 196. Midas dives, 97.
MIMETA, mimicking Tropidorhyn- chus, 104.
MIMICRY, meaning of the word, 74; theory of, 76; among Lepi- doptera, 77; how it acts as a protection, 80, 81; of other in- sects by Lepidoptera, 89; among
beetles, 91; of other insects by beetles, 95; of insects by species of other orders, 97; among the vertebrata, 99; among snakes, 101; among tree frogs, 103; among birds, 103; among mam- mals, 107; objections to the theory of, 108; by female in- sects, 110; among Papilionidæ, 179; never occurs in the male only, 260.
MOMOTIDÆ, sexual colouring and nidification of, 241.
MONTROUZIER, M., on butterflies of Woodlark Island, 152. MORAL sense, difficulty as to the origin of, 352. MORPHOS, how protected, 73. MURRAY, Mr. Andrew, objections to theory of mimicry, 108. MUSCICAPIDE, sexual colouring and nidification of, 245. MUSOPHAGIDE, sexual colouring and nidification of, 242.
NAPEOGENES, all the species are mimickers, 85. NATURAL selection, the principle stated, 41-43; general accept- ance of the theory of, 46; tabular demonstration of, 302; outline of theory of, 307; its effects on man and animals dif- ferent, 311; hardly acts among civilized societies, 330; what it can not do, 333; cannot pro- duce injurious or useless modi- fications, 334. NECTARINEIDE, 254. NECYDALIDE, mimic Hymenop- tera, 96.
Nemophas grayi, a Longicorn mi micked by a Longicorn, 95. NESTS of Birds, why different, 215; of young birds, how built, 219; construction of, described by Levaillant, 224; imperfec- tions in, 229; influenced by changed conditions and per- sistent habits, 232; classification of, according to function, 237. NEW FORMS, how produced by variation and selection, 286. NEW GUINEA, relation of the seve- ral Papuan islands to, 194. NOCTURNAL animals, colours of,
OBEREA, species resemble Ten- thredinidæ, 96. Odontocera odyneroides, 96. ODONTOCHEILA, 97. Odynerus sinuatus, 90. Onthophilus sulcatus, like a seed, 58.
Onychocerus scorpio, resembles bark, 56.
ORANGE-TIP butterfly, protective colouring of, 59.
ORCHIS, structure of an, explained by natural selection, 271. Orgyia antiqua and O. gonostigma, autumnal colours of, 62. ORIOLIDE, 253.
Ornithoptera priamus, 145, 173; O. helena, 173.
Oxyrhopus petolarius, O. trigemi- nus, O. formosus, 102.
OWEN, Professor, on more gene- ralized structure of extinct ani- mals, 298.
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