METAMORPHOSES OF INSECTS. 45 



The antennae of Moths are somewhat sword-shaped, 

 Fix>< 32 tapering from the inser- 



tion to the point, and 

 are sometimes fringed, 

 Fig. 32. 



The Butterflies are 

 diurnal insects, flying 

 only in the day. The 

 Moths are nocturnal, 

 seldom flying except at 

 night, or after sun set. 

 Some of the small spe- 

 cies are, however, occasionally seen by day. 



Some of this tribe, called Hawk Moths, have a pro- 

 boscis, or tongue several inches long, by means of which 

 they pump the honey from the nectaries of flowers. 

 Both Butterflies and Moths, are furnished with four 

 wings, six legs, a proboscis, and suck honey as their chief 

 aliment. 



Change from the Chnjsalis to the Butterfly. Swam- 

 mardam, one of the oldest and best authorities on the 

 anatomy of larvae, demonstrated that even before the 

 time when the caterpillar changes into the chrysalis, all 

 the parts of a butterfly may be discovered within its skin. 

 His directions for observing this phenomenon are, to take 

 a full grown caterpillar, and having tied it to a thread, put 

 it into boiling water, and take it out soon after ; thus its 

 external skin will separate, and may be easily drawn off 

 from the Butterfly, which is contained folded up in it. 

 This done, it is clearly and distinctly seen, that within 

 this skin of the caterpillar, a perfect and real Butterfly 

 was hidden. 



On examining certain chrysalids, which are covered 

 with a light colored shroud, and consequently translu- 

 cent, we are able to discovert he eyes of the Butterfly, as 

 well as its wings, which are of small size and folded 

 upon the sides. There may also be observed several 

 slender ribs or divisions, arising from the head, and 



What ist he difference in their time of flying'? What is said of the 

 existence of the butterfly within the skin of the larva'? What is said of 

 the butterfly in the chrysalis 1 



