Thosk Hok'Nid Eak'Wigs 



M,^. 



witli a soft and tlcshy body, a tew joititt'd lc'^>., and 

 tlic general appearance of a ^rub or caterpillar. 

 To this very ancient and somewhat shadowy 

 ancestor the larvx' of tiie hij^lier insects still more 

 or less revert in their earlier stages ; and we may 

 believe that many insects so reverted durinj^ many 

 generations. But in process of time the primitive 



NO. l8. — TIIK MorilKR EAKWIC. AM) lll.R Uk(VTI) OF ClIlfKS. 



type developed into a win<4less, six-lej^j^ed form, 

 like that in Xo. 19 — a form which you can see at 

 once marks a comparatively ^reat advance upon 

 the old, worm-like proi^enitor. This animal, you 

 can note, has six good legs to run about with, and 

 is already provided with a well-marked head, and 

 with the three body-rings and the long tail or 

 abdomen so characteristic to the last of all higher 

 insects. Its segments have been specialised. P'rom 



