LEPIDOPTERA. 



229 



LEPIDOPTERA. 



BUTTERFLIES AND MOTHS are readily recognized by their 

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

 clypeus ; by the maxillaa 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 



am 



ab 



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. 



