CHAPTER II.. The Influence of External Conditions on the Form and Structure

THE INFLUENCE OF EXTERNAL CONDITIONS ON THE FORM AND STRUCTURE OF LARVÆ.

Larvæ depend partly on the group to which they belong.--Wood-eating Larvæ.--Larvæ of Lamellicorns.--Larvæ depend also in part on mode of life.--Larvæ of Hymenoptera, of Sirex; of Tenthredo; of Ichneumons; of Bees.--Rudimentary legs of Bee Embryo.--Beetles, Weevils, Scolytus, Crioceris, Sitaris, Metamorphoses of Pteromalidæ. Platygaster, Polynema.--Influence of external conditions.--Developmental and adaptive Metamorphoses page 27-41