BUTTEBFLT AND OTHER 8CALT-WINGEB INSECTS. Ill 



The " tongue" is the only means by which the butterfly can 

 obtaiu food. It sips or sucks up the nectar at the bottom 



Fio. 126. — PapUio Twmwt. A, egg (magoifled); B, caterpillar; C, the same just 

 before pupating; D, pupa or chrysalis. (Natural size.) 



of flowers, or drinks water, imbibing it through this tube. 

 It never uses its jaws; and, in fact, it cannot, because they 



