126 



INSECTS AFFECTING THE ORANGE. 



covered above with miuute horny asperities, which are pressed against 

 the walls of the burrow, and serve to hold the body firmly in place while 

 the jaws are forced into the wood. The full-grown larva is about one 

 inch in length. 



The pupa is formed in the gallery, in a rude cell made by pushing 

 aside the chips with whicli the larva stops up all the approaches to its 

 burrow. 



The perfect insect has a long, cylindrical body with rather roughly 

 pitted surface ; the color is dark brown, dusted densely beneath, but 



Fig. 47. — Elaphidion inerme. (Original.) 



irregularly above, with fine ash-gray hairs ; the antennse are not longer 



than the body. The length varies from 11""" to 15'"'" (^01) to ^o"o i^^l^) 5 



the males are smaller than the females. 

 Fig. 48 illustrates, in all its stages, Elaphidion parcdlehim Newm., a 



closely allied species, which lives in northern fruit-trees, and has habits 



similar to the Orange Sawyer. In the 

 figure, a represents the larva; 6, the 

 pupa in its cell; c, the perfect insect; 

 d, the head ; e,f, and </, the mouth i^arts; 

 and /i, the antenna of the larva, enlarged; 

 i and j show details of the antennae and 

 tip of the wing-cases, respectively, in 

 the imago ; Z-, the end of the twig which 

 contains the borer. 



The larvseof this beetle are more prop- 

 erly scavengers or pruners, feeding by 

 preference upon dead branches, not only 



of Orange, but also of Hickory and other hardwood trees, and confin- 



iug themselves to the dry and lifeless wood, unless compelled by hunger 



to enter the living portions of the plant. 



Fig. 48. — Elaphidion parallehim Newm. : 

 a, larva; b, chvysalis in twig; c, julult 

 beetle ; d, e, f,(j,h, bead .and nioutb parts 

 of fbe larva; i, part of antenna ; and J, 

 end of wing case of the adult; k, end of 

 twig, cut off. (After Kiley.) 



