448 



NEW YORK STATE MUSEUM 



Distribution. This species has been recorded from the Middle and 

 Southern States by Dr LeConte, and it is undoubtedly generally distributed, 

 since it has been listed from the vicinity of Buffalo N. Y., Cincinnati O., 

 southwestern Pennsylvania, New Jersey and the District of Columbia. 



Bibliography 

 1897 Hubbard, H. G. U. S. Dep't Agric. Div, Km. liul. 7, n. s. p. 24 



Hickory twig borer 

 C/n-Lii)ics!is liicoriac Lee. 



A short, stout, black beetle about '/16 inch long, may be bred from hickory twigs. 



This common species was reared from hickory limbs infested with a 

 gnarly or knotty growth, the adults appearing June 11 and July i, 1902. 



Description. A black or dark brown beetle, rather stout, about '/& inch 

 long. Clulj of antennae large and longer than funicle. Eyes slightly 

 emarginate, coarsely granulate ; thora.x sparsely clothed with short, yellow- 

 ish pubescence. Wing covers plainly striated and with a pubescence 

 similar to that of the thora.\. The antenna is figured on plate 67, figure 9, 

 a portion of the provcntriculus on plate 69, figure 6 and the tibia in 

 figure 103. 



The larva has been described by Dr Smith as curculionid in form, 

 pure white, about ' ,f, inch in length, anel with a brown, chitinous head, 

 usually retracted so as to show only the mandibles, which latter are very . 

 stout, curved, with'a broad, gougelike, cutting edge. 



Life history and habits. This insect is cpiite common in hickory twigs 

 from 3/5 to I inch in diameter, the burrows being mostly in the wood and 

 just scoring the bark. A single upright channel al)out i inch long is cut 

 by the parent beetle, and eggs are deposited at nearly regular intervals on 

 each side, the larvae working at right angles for a short distance and then 

 turning and boring nearly parallel with the wood fibers. Dr John 

 Hamilton states that he reared a few si)ecimens of this beetle from 

 hickory liml)s the first summer after cutting, and great numbers during 

 the second season. 



