LEPIDOPTERA. 



229 



LEPIDOPTERA. 



BUTTERFLIES AND MOTHS are readily recognized by their 

 cylindrical, compact bodies ; their small head, with its large 

 clypeus ; by the maxillae being prolonged into a tubular 



Fig. 155.* Fig. 156. 



"tongue;" the obsolete mandibles; and the broad, regularly 

 veined wings, which are covered with minute scales. 



Their transformations are complete ; the active larvae assum- 

 ing a cylindrical, worm-like form, being rarely footless, and 



nid 

 Fig. 157. Fig. 158. 



having from one to five pairs of fleshy abdominal legs, besides 

 the three pairs of corneous jointed thoracic limbs. A large 

 proportion (butterflies excepted) spin silken cocoons before 



*For explanation of cuts, 155 to 171, see pages 233 and 234. 



