370 



Cilcn House. 



XEW YORK STATE MUSEUM 



Ml' I [. (i. Huliliarcl states that this s|)ecies is common in 

 comlcroiis trees from Ahiska to Maine and extending- southward in the 

 mountainous regions. He adds that it is etjuall)- common in northern 

 l'.urt)i)e. 



Description. This is a rather stout, brownish, black beetle, measuring 

 but little over i ,s incli in length. The form of the 

 anteiiiKK.-, the scul[)turing of the prothora.x and the 

 markings on the wing covers are well shown at 



hiju 



74- 



Fig. 74 X >■ 1 n t e r u s b i \' i t- 

 l:» I IIS. f.-\fttr Hnbb.ud, I . 

 S. Pep't ..\sric. Div. F.iit. 

 Kill. 7, 11. s. 1897) 



1 he galleries of this species, like those of the fol- 

 lowing, penetrate the wood vertically for some distance 

 and then l)ranch. The lirood chambers are arranged 

 at nearl)- erjual distances and extend above and l)elow 

 in a direction parallel with the wood hbers. They are 

 usually farther apart than in the case of X. p o 1 i t u s 

 .Sa)-. I he walls are stained black as in allied species. 

 Natural enemies. Dr Hopkins has found I [> s 

 fasciatus (Jli\-. associated with this lorm in sjiruce 

 logs, and larva, prol)al)ly of the same speci(;s, in its burrows. A predacrous 

 form, 1 h a n e r o c 1 e r i s s a n g u i n e u s .Sa)', was found bv I )r iiopkins 

 on a hemlock stump with this borer. He also records an interesting 

 instance where large numbers of this species were taken in the stomachs 

 of brook trout in Randolph W. \'a. the latter ]iart of Ma)-. The insects 

 had e\i<lently lieen ll\ing in C(.>nsiderable numbers, dropped on the water 

 and fallen a prey t(j the tish. 



Bibliography 

 1897 Hubbard, H. G. V. S. Drp't .Vgric l)i\. I'.nt. I'.ul. 7, n. s. p. 28 

 1899 Hopkins, A. D. W. \a. Agric. E.\p. Sta. IJul. 56, p. 349, ,44 



