LONG HORNED BEETLES. 



129 



merits, it again turns round so as to have its head upwards, 

 when it rests from its labors in the interior of the passage until 

 the following spring, when the mature larva sheds its skin and 

 discloses the pupa. In this condition it remains-for about two or 

 three weeks, when the perfect beetle escapes. At firsit its body 

 and wing-cases are soft and flabby, but in a few days they harden, 

 when the beetle makes its way through the sawdust-like castings 

 in the upper end of the passage, and with i'ts powerful jaws 

 cuts a smooth, round hole through the bark, from which it 

 escapes. 



Fig. 134. — Saperda Candida, Fab. — a, puncture iu wliich egp is laid; b. same in 

 section; e, ho'e trotn which beetle has emerged; f, same in section: f;, pupa in its 

 cell. Alter Riley. 



"The larva, (Fig. 133). is of a whitish color, with a round 

 head of chestnut-brown, polished and horny, and the jaws black. 

 It also has a yellow horny looking spot on the first segment behind 

 the head. It is without feet but moves about in its burrows by the 

 alternate contraction and expansion of the segments of its body. 

 When full grown it is over an inch in length. Fig. 134 shows the 

 work of this borer. 



"The color of the chrysalis is lighter than that of the larva, 

 and it has transverse rows of minute spines on the back, and 

 a few at the extremitv of the bodv. 



