On the Origin and Metamorphoses of Insects
CHAPTER II.
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