public@vhost@g@html@files@47849@47849-h@47849-h-12.htm.html#Page_105" class="pginternal">105;

by sex, 61, 62;

climatic varieties very distinct from local, 45;

climatic influences operate slowly, 58;

climatic changes gradual, 652, 660.

Cole, B.G., seasonal dimorphism of E. punctaria, 4.

Coleoptera, grub-like larvÆ of, 495.

Colias edusa, dimorphism of female, 250.

Colour, biological value of, 289.

Conditions of life, compulsory changes in, 651.

Congruence in Lepidopterous families, 435;

in Lepidopterous genera, 444.

ConiferÆ, food-plants of Anceryx, 268.

Convergence of characters in Ophiuroidea, 396;

in Dipterous larvÆ, 494.

Cope, Prof., habits of Siredon Mexicanus, 566;

on distribution of Amblystoma, 569.

Correlation of growth, 278, 363, 388, 415;

action of, 415, 516;

Von Hartmann’s views of, 670;

nature of, 673.

Cryptobranchus, characters of, 579.

Cyclical propagation, 82, 699;

and reversion, 613.

D.

Daphniacea, differences between allied species and genera, 516.

Darwin, C., influence of external conditions of life, 59;

inheritance at corresponding periods, 63, 275, 431;

markings of butterflies, 101;

definition of eye-spots, 326;

adaptation in larvÆ, 392;

correlation of growth, 516;

degeneration, 583;

adaptation, 589;

causes of sterility, 596;

limited variability, 656;

factors of variability, 676;

abrupt variations, 701.

Degeneration, 583;

phyletic, 611.

Deilephila, division of larvÆ into groups, 199;

D. EuphorbiÆ, 1st larval stage, 202;

2nd and 3rd stages, 203;

4th and 5th stages, 205;

D. nicÆa, larva, 207;

D. dahlii, larva, 208;

D. vespertilio, larva, 209;

D. Galii, larva, 211;

5th stage, 213;

D. livornica, larva, 261.

HÜbner, figures of caterpillars referred to, 193, 208, 211, 218, 231, 267.

Humboldt, Baron, on the Lake of Mexico, 608, 621.

Huxley, Prof., “Anatomy of Invertebrated Animals” referred to, 498.

HydromedusÆ, alternation of generations in, 83;

want of parallelism in different generations of, 395.

Hydrozoa, asexual reproduction and polymorphosis, 83.

Hymenoptera, incongruence among, 481;

imaginal characters, 481;

causes of incongruence, 486.

I.

Ichthyodea, characters of, 577, 579.

Incongruence; in Lepidopterous families, 437;

genera, 446, 449;

species, 451;

varieties, 456;

two kinds of, 458, 502;

in Hymenoptera, 481;

in Diptera, 488;

different forms of, 503;

dependent upon action of environment, 505, 507, 508.

Inheritance; homochronic, 63, 431;

definition of cyclical, 66;

limited by sex, 68.

Insects, ancestry of, 493.

Intermaxillary gland of Axolotl, 623.

J.

Jullien, on Lissotriton punctatus, 591.

K.

Kant, referred to, 638, 709.

Kirby, W.F., “Synonymic Catalogue” referred to, 2, 49, 435, 449.

Kleemann, larva of S. Ligustri, 259.

Knaggs, Dr. H.G., seasonal dimorphism of S. illustraria, 4.

KÖlliker, Prof., experiments with Axolotl, 564;

characters of Axolotl, 575.

L.

Lacerta muralis, colour variations, 361.

Lake of Mexico, 603, 608, 621.

Lange, F.A., “History of Materialism” referred to, 645, 656.

Langer, Prof., experiments with Pelobates tadpoles, 607.

Lankester, Prof. E.R., on degeneration, 583.

Lasiocampa Pini, larva eaten by lizards, 336;

variable in two stages, 405.

Lepidoptera; foes, 8;

larva and imago independently variable, 244.

Species, causes of transformation of, 116;

nature of, 671.

Specific characters, 91;

may originate through direct action, 100.

Specific constitution, 112.

Spencer, Herbert, theory of descent, 645;

variability, 654;

law of growth, 655.

Spermatozoa, of Amblystoma, 593;

of Lissotriton punctatus, 595.

Speyer, Dr., seasonal dimorphism of moths, 4;

of P. phlÆas in Germany, 50.

SphingidÆ, oviposition, 164;

congruence and incongruence in genera, 450.

Sphinx-markings, ontogeny and morphology, 177.

LarvÆ of genus, 259;

S. Convolvuli, 650.

Origination of markings, 273;

law of development, 274;

forms of markings, 309;

S. Ligustri, constant in three stages, 405.

Stainton, H.T., larval characters of NotodontidÆ, 443;

young larvÆ of Triph. pronuba, 520.

Staudinger, Dr., seasonal dimorphism of Euch. Belia and E. Ausonia, 3, 48;

butterflies of Finnmark, 20;

P. Napi var. BryoniÆ from Lapland, 44, 49;

larvÆ of Ch. alecto, 193;

affinities of Nymphalis and Apatura, 438.

Stauropus Fagi, protective habits of larva, 290.

Sterility, causes of, 596;

a result of reversion, 597;

law of, in reversion forms, 599.

Stoat, seasonal change of colour, 7.

Strauch, “Revision of SalamandridÆ” referred to, 570, 577.

Strecker, H., N. American species of Smerinthus, 453.

Stripes, longitudinal, 312, 372;

oblique, 317, 373.

T.

Tadpoles, arrested development, 607.

Tegetmeier, W.B., metamorphosis of Siredon, 566.

Teleology and Mechanism, 694.

Terebrantia, larvÆ, 508.

Transformation, causes of, 460, 496;

factors of, 676.

Trematoda, alternation of generations in, 83.

Trimen, Roland;

larva of Lopho. Dumolinii, 527;

of Ch. Capensis, 529;

phytophagic variability of larva of Ach. Atropos, 531.

Triptogon roseipennis, larva, 244.

Triton;

T. alpestri

                                                                                                                                                                                                                                                                                                           

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