208 THE CANADIAN. ENTOMOLOGIST 



Chapman, Jour. Agric. Res., \'ol. Ill, 4, pp. 283 293, 1915. 

 Chittenden, U. S. D. A., Div. Ent. Circ. 24, 2nd ser. pp. 1-8, 1897. 

 U. S. D. A., Div. Ent. Bui. 7, n. s., pp. 67-75, 1897. 

 U. S. D. A., Div. Ent. Bui. 22, n. s., pp. 51-64, 1900. 

 U. S. D. A., Year Book, pp. 726-733, 1902. 

 Felt, N. Y. St. Mus. Mem. 8, p. 280, 1905. 

 " N. Y. Rept. 27, p. 113, 1912. 

 " Jour. Econ. Ent., Vol. VII, p. 373, 1914. 

 " N. Y. Rept. 29, 1915. 

 Hamilton, Trans. Am. Ent. Soc, Vol. XXII, p. 364, 1895. 

 Harrington, 27th Ann. Rept. Ent. Soc. Ont., p. 71, 1896. 

 Hopkins, Ins. Life, Vol. VII, pp. 145-151, 1894. 

 Can. Ent., Oct., pp. 243-250, 1896. 



Proc. 19th Ann. Meet. Soc. Prom. Agric. Sci., pp. 103-108, 1898. 

 U. S. D. A., Div. Ent. Bull. 48, 1904. 

 Howard, U. S. R. Ent., p. 11, 1914. 

 Johnson, Ann. Rept. Pa. Dept. Agric, pp. 345-64, 1896. 

 Knull, Ent. News, Vol. XXXI, p. 10, 1920. 

 Metcalf & Collins, U. S. Farmers' Bui. 467, p. 10, 1911. 

 Packard, 5th Rept. U. S. Ent. Comm., p. 222, 1890. 

 Ruggles,+15th Rept. St. Ent. Minn., p. 54, 1914. 



14th Rept. St. Ent. Minn., p. 55, 1911-1912. 

 Smith, N. J. Rept., p. 348, 1910. 



" Ins. N. J., p. 295, 1909. 

 Washburn, Minn. Rept. 14, p. 55, 1912. 



U. S. D. A., Year Book, p. 515, 1906. 



U. S. D. A., Year Book, pp. 574-578, 1908. 



The two-lined chestnut borer is known as a serious pest of chestnuts and 

 oaks. Eggs are deposited in small clusters in bark crevices and the winding 

 larval burrows are made in the wood and cambium layer, and occur on the 

 tree from small branches less than an inch in diameter down to the roots. The 

 adults usually eat aroVind the margins of the leaves, but also tear off the epi- 

 dermis and at times consume nearly the entire leaf, including the midrib. 



On trunk of dead white oak and red oak leaves (Frost) . 



A. auroguttatus Schaef. 



SchaefTer, Brook. Inst. Mus. Sci. Bui. 1, 7, p. 149, 1905. 

 Beating branches of black oak (Schaeffer). 



A. granulatus Say. 



Blanchard, Ent. Amer., Vol. V, p. 32, 1889. 



Burrill, 12th Rept. St. Ent. 111., pp. 121-122, 1883. 



Chittenden, Bui. 22, n. s., U. S. D. A., Div. Ent., p. 67, 1900. 



Manee, Ent. News, Vol. XXIV, pp. 167-171, 1913. 



Packard, 5th Rept. U. S. Ent. Comm., p. 443, 1890. 



Burrill states that the larva of this species makes tortuous galleries in the 

 living tissue of the Lombardy poplar, these galleries running for the most 

 part in irregularly horizontal directions across the grain of the wood. 



Swept from Salix leaves at Littleton, Col. (Frost), 



