12 

 t 



is based partly upon its repellant properties, and partly upon the fact that 

 any soapy, oily or greasy substance, when applied to the bodies of insects, 

 will close the breathing pores, thus smothering them. Whitewashing 

 or coating the trunks of trees with grafting wax has also been recom- 

 mended. Of these remedies, whitewashing will probably be more effec- 

 tive, especially if some repellant, such a^ whale oil soap, be added. This 

 solution can be applied with a spray pump very effectively, and at small 

 expense. 



BIBLIOGRAPHY. 



1862, Fitch, Trans. N. Y. State Agri. Soc., 22:117-118. 



1862, Harris, Insects Injurious to Vegitation, 3d Ed., pp. 103-105. 



1866, Walsh, Pract. Ent, 1:28-29, 126. 



1867, Walsh, Pract. Ent., 2 : 107. 



1868, Walsh and Riley, Am. Ent.. 1 : 60. 



1869, Walsh and Riley, Am. Ent., 1 : 148. 



1870, Riley, Am. Ent. and Bot., 2 : 309, 373. 

 1870, Glover, Rept. U. S. Commr. Agri., p. 73. 

 1874, Reed, Ann. Rfept. Erit. Soc. Ont., pp. 14-16. 

 1877, Bethune, Can. Ent., 9 : 223. 



1877, Bethune, Ann. Rept. Ent. Soc. Ont., pp. 24-25, 



1880, Horn, Trans. Am. Ent. Soc, 8 : 136. 



1880, Horn, Can. Ent., 12:148-152. 



1880, Rogers, Ann. Rept. Ent. Soc. Ont., pp. 31-34. 



1880, Chambers, Am. Ent., (3) n. s. 1 : 59-61. 



1882, Moffat, Can. Ent., 14:200. 



1882, Horn, Can. Ent., 14:240. 



1890, Packard, 5th Rept. U. S. Ent. Comm., pp. 355-358. 



1891, Hopkins, Bui. 16, and Ann. Rept. W. Va. Agri. Exp. Sta., 

 p. 88. 



1893, Hopkins, Bui. 32, W. Va. Agri. Exp. Sta., p. 194, No. 144. 



1893, Laurent, Ent. News, 4 : 285-286. 



1894, Jack, Trans. Mass. Hort. Soc, pp. 135-136. 

 1896, Johnson, Ann. Rept. Pa. Dept. Agri., pp. 355-356. 

 1896, Smith, 17th Ann. Rept. N. J. Agri. Exp. 3ta., p. 442. 

 1899, Luggar, Bui. 66, Minn. Agri. Exp. Sta., pp. 202-204. 



1899, Bethune, 30th Ann. Rept. Ent. Soc. Ont., p. 101. 



1900, Felt, Bui. 31, N. Y. State Mus., 6:539. 



1904, Hopkins, Bui. 48, Div. Ent. U. S. Dept. Agri., p. 35, No. 196. 



THE LOCUST TREE CARPENTER-MOTH. 

 Prionoxystus robimae Peck. 

 Order Lepidoptera; Family Cossidae. 



The larva of this insect is, perhaps, next to the locust borer, the most 

 destructive of the locust infesting insects. This pest is known to exist 



