Edwards, W. H., seasonal dimorphism of _P. pseudargiolus_ and
_P. violecea_, 4;
of _P. Tharos_ and _P. Marcia_, 4;
of _P. Ajax_, 30;
of _L. Artemis_ and _L. Proserpina_, 32;
experiments with _P. Ajax_ and _P. Tharos_, 33, 126, 140;
pupal period of winter forms of _P. Ajax_, 36;
experiments with _G. interrogationis_, 149;
early stages of larvæ of N. American butterflies, 165;
larva of _P. pseudargiolus_ and attendant ants, 290;
figures of larvæ referred to, 165, 436, 437.
Eimer, colour variation in _Lacerta muralis_, 361.
_Emmelesia unifasciata_, larva phytophagically variable, 307.
Environment, direct and indirect action of, 686.
_Ephyra punctaria_ and _E. omicronaria_, seasonal dimorphism of, 4.
_Eriogaster lanestris_, larva eaten by lizards, 336.
_Eriotus Pteridis_, resemblance of larva, 320.
_Euchelia Jacobææ_;
larva and imago rejected by lizards, 336;
constant in all three stages, 405.
_Euchloe_:
_E. belia_ and _E. ausonia_, seasonal dimorphism of, 3;
_E. belia_, climatic variation of, 47;
var. _Simplonia_ in Alps, 48;
_E. belemia_, seasonal dimorphism and migration of, 78.
_Euproctus Rusconii_, habits of, 617.
_Eusmerinthus Kindermanni_, larva, 526.
Evershed, J., larva of _C. porcellus_, 188.
Eye-spots;
repetition of, 277;
development of, 325, 327;
terrifying action, 330;
resemble flower-buds, 334;
useful when rudimentary, 366.