_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, 401;
species constant in three stages, 405;
species variable in three stages, 405;
variable in two stages, 405;
variable in one stage, 406;
causes of variability of pupæ, 411;
case of incongruence among pupæ, 540.
_Leptodora hyalina_, development, 93.
_Lepus timidus_, white variations of, 662.
Leuckart, reproduction of _Ascaris nigrovenosa_, 90;
on growth, 654.
Leydig, on sexual larvæ of _Triton_, 591.
_Limenitis Artemis_ and _L. Proserpina_, dimorphic in both sexes, 32;
_L. Camilla_, constant in three stages, 405.
Lines, dorsal, subdorsal, supra- and infra-spiracular, 175.
_Lissotriton punctatus_, sexual larvæ, 591, 595.
Lizards, colour variation of, 361;
rejection of caterpillars by, 336.
Local forms, distinct from climatic varieties, 45;
produced by isolation, 109.
Lockyer, B., young _Noctua_ larvæ, 166.
_Lophostethus Dumolinii_, larva, 527.
_Lophura hyas_, larva, 254.
Lubbock, Sir John, insect metamorphosis, 65, 431;
derivation of metagenesis, 83;
colours of caterpillars, 294;
ancestry of insects, 493.
_Lycæna pseudargiolus_, larva and ants, 290.