Hypermetamorphosis 



actly the peculiarities of the second; it is en- 

 closed, in the Sitares and probably also the 

 Zonites, in a double vesicular envelope 

 formed of the skin of the secondary larva 

 and the slough of the pseudochrysalis. In 

 the Meloes, it is half-enclosed in the split in- 

 teguments of the pseudochrysalis, even as 

 these, in their turn, are half-enclosed in the 

 skin of the secondary larva. 



From the tertiary larva onwards the 

 metamorphoses follow their habitual course, 

 that is to say, this larva becomes a nymph; 

 and this nymph the perfect insect. 



143 



