THE GENUS DENDEOCTONUS. 163 



1899b. Hopkins, A. D. — Preliminary report on the insect enemies of forests in the 



northwest. <Biil. 21, n. s., Div. Ent., U. S. Dept. Agr., pp. 10, 11, 13, 14, 



15, 20, 21, 22, 26. 

 lS99c. Hopkins, A. D. — Notes on T/endroctonus.< Froc. Ent. Soc. Wash., lA', No. 3, 



p. 343, May 24. 

 1899. Smith, J. B. — Insects of New Jersey. '"Supplement to the 27th Annual Rei^ort 



of the State Board of Agriculture, p. 364. 



1899. Chittenden, F. H.^ — Insect enemies of the white pine. The white pine {Piniis 



strobus Linnaeus). <Bul. 22, Div. For., U. S. Dept. Agr., pp. 55, 56, figs. 5. 

 1900a. ScHWARz, E. A. — Papei's from the Harriman Alaska Expedition, XVIII. 



Entomological results (12); Coleoptera.<Proc. Wash. Acad. Sci., II, p. 537, 



December 20. 

 1900b. ScHWARZ, E. A. — Coleoptera of the expedition. <Ibid., Author's extra, p. 185. 



1900. Cary, Austin. — Insect damage to spruce timber in Maine and New Hamp- 



shire. <The Forester, VI, No. 3, pp. 52-54. 



1901. Smith, J. B.— Doings of societies. <Ent. News, XII, No. 3, p. 92, March. 



1901. Johnson. — Doings of societies. <Ent. News, XII, No. 3, p. 92, March. 

 1901a. Hopkins, A. D. — Insect enemies of the spruce in the northeast. <Bul. 28, n. s., 



Div. Ent., U. S. Dept. Agr., pp. 1-48, Pis. I-V, XIV, XV (issued October 1, 

 1901). 

 1901b. Hopkins, A. D. — Some insect enemies of living trees. ■< Proceedings of the 

 Twenty-Second Annual Meeting of the Society for the Promotion of Agricul- 

 tural Science held at Denver, Colo., pp. 66-69. 



1902. Slosson, a. T. — Additional list of insects taken in the Alpine Region of Mount 



Washington. <Ent. News, pp. 319-321, December, 1902. 

 1902. CoMSTOCK, J. H., and Kellogg, V. L. — Elements of insect anatomy. Fourth 



edition. 

 1902. Severin, G. — Le Dendroctonus micans (Kugeiann) en Belgique.<Bull. Soc. 



Centr. forestiere Belg., Vol. IX, pp. 72-81. 

 1902. Severin, G. — L'invasion de I'Hylesine geante.-<Bull. Soc. Centr. forestiere 



Belg., Vol. IX, pp. 145-152. 

 1902. Ulke, Henry. — A list of the beetles of the District of Columbia. <Proc. U. S. 



Nat. Mus., XXV, pp. 1-57. 

 1902a. Hopkins, A. D. — Some notes on the genus Dendroctonus.<CFvoc. Ent. Soc. 



Wash., V, No. 1, pp. 3-4, May 17, 1902 (author's extra published March 28, 



1902). 

 1902b. Hopkins, A. D. — Insect enemies of the pine in the Black Hills Forest Reserve. 



<Bul. 32, n. s., Div. Ent., U. S. Dept. Agr., pp. 1-24, Pis. I-VII, figs. 1-5 



(issued April 29, 1902). 

 1902c. Hopkins, A. D. — On the study of forest entomology in America. Proceedings 



of the Fourteenth Annual Meeting of the Association of Economic Entomolo- 



gists.<Bul. 37, n. s., Div. Ent., U. S. Dept. Agr., pp. 5-32. 

 1902. Schwarz, E. a.— Proc. Ent. Soc. Wash., V, No. 1, p. 32, May 17. 

 1902. AVeber, L. — Zur Biologic von Rhizophagus grandis Gyllh.<AIlg. Zeitsch. f. 



Ent., VII, p. 108. 



1902. Wickham, H. F. — A catalogue of the Coleoptera of Colorado. <Bul. Lab. Nat. 



Hist. State Univ. Iowa, Vol. V, No. 3, pp. 217-310. 

 1903a. Hopkins, A. D. — Forest insect explorations in the summer of 1902.<Caii. 



Ent., XXXV, No. 3, pp. 59-61, March. 

 1903b. Hopkins, A. D. — Some of the principal insect enemies of coniferous forests in 



the United States. < Yearbook U. S. Dept. Agr., for 1902, pp. 265-282. 



1903. Felt, E. P. — Insects affecting forest trees. <7th Rep. Forest, Fish and Game 



Comm. State N. Y., pp. 480-481, 2 plates, figs. 1-3. 



