GROWTH AND TRANSFORMATION 



177 



butterfly may easily be exaggerated. It is necessary to 

 remember that such a young insect, rightly called a larva 

 because in it the aspect of the adult is to a considerable 

 extent masked, must not be regarded as an embryo hatched 

 before its time. It presents, for example, a great advance 

 in its stage of development on the young larvae of many 

 Crustacea (such as water-fleas, certain shrimps, and crabs) 

 in which there are but a few segments and limbs apparent. 



Fig. 47. — c, Ground-beetle (Chlaejiius bioculatus), India, a, larva; 

 h, pupa. X 5. From T. B. Fletcher {Bull. 89, Agr. Res. Inst. Pusa, 

 1919). 



the greater number of these appearing only after hatching. 

 Still more does it display a contrast to the early larvae of 

 starfishes and their allies, which are veritable precociously 

 hatched embryos, comparable at most to those earliest 

 stages in the development of insects that follow the 

 segmentation of the egg. 



Study of a series of grubs belonging to different orders 

 of insects, or even to members of the single order of beetles 

 (Coleoptera), furnishes examples of lars^ae some of wliich 



N 



