860 NEW YORK STATE MUSEUM 



213 Locust borer, Oyllene robiniae Forst. A serious 

 enemy of locusttrees. 



Chief accessible article: Hopkins, A. D. W. Va. agric. exp. sta. 

 Bui. 16. '91. p. 88. 



214 Ribbed Shagium, Ehagium lineatum Oliv. Works 

 under dead or dying pine bark. 



215 White pine weevil, Pissodes strobi Peck. Injures 

 terminal shoots of pine. 



216 Willow snout beetle, Cryptorhynchus lapathi 

 Linn. An introduced borer which injures poplar and willow. 



Bark and wood borers, S c o 1 y t i d s 



General works on the group 

 Hopkins, A. D. Catalogue of West Virginia Scolytidae and their 

 enemies. W. Va. agric. exp. sta. Bui. 31. '93. p. 121-68. 

 Hubbard, H. G. U. S. dep't agric. div. ent. Bui. 7, n. s. '97. p. 9-30. 



217 Monarthrum mali Fitch. Attacks beech, apple. 

 Chief accessible article: Fitch, Asa. Noxious and beneficial 



insects of New York. 3d rep't, '56. p. 8-9. 



218 Gnathotrichus materiarius Fitch. Attacks 

 white and pitch pine. 



219 Pityogenes sp. Attacks white pine. 



220 Pityophthorus minutissimus Zimm. A bark- 

 miner of red oak. 



221 Pityophthorus sp. Working in dead limbs of black 

 birch. 



222 Xyloterus politus Say. Attacks beech and soft 

 maple. 



223 X. bivittatus Kirby. Attacks balsam stumps. 



224 Cryphalus striatus Mann. Attacks balsam, 

 spruce and hemlock. 



225 Dryocoetes eichhoffi Hopk. Taken under bark 

 of yellow birch stump. 



226 Dryocoetes sp. Working in bark of spruce logs. 



227 Xylocleptes sp. Boring in partly decayed twigs of 

 sugar maple. 



228 Tomicus calligraphus Germ. Abundant in 

 thicker bark of dying white and pitch pines. 



