164 THE SCOLYTID BEETLES. 



1903. BRICHET, 0., et SEVERIN, G. Le Dendroctonus micans, de*gats moyens pre- 

 ventifs et destructifs.<^Bull. Soc. Centr. Forestiere Belg.., X, pp. 244-258. 



1903. BAUDISCH, FR. Uber Dendroctonus micans Kug.<Centralbl. ges. Forstwesen^ 



Jahrg. 29, pp. 151-152. 



1904. HOPKINS, A. D. Catalogue of exhibit of insect enemies of forests and forest 



products at the Louisiana Purchase Exposition, St. Louis, Mo., 1904. < Bui. 

 48, Div. Ent,, U. S. Dept. Agr. 



1904-5. QUAIRIERE, C. Le Dendroctonus micans.^ Bull. Soc. Centr. Forest iere 

 Belg., XI, pp. 626-628; XII, pp. 183-186. 



1904. POWELL, P. B. The development of wings of certain beetles, and some 



studies of the origin of the wings of insects. <Journ. N. Y. Ent. Soc., XII, 

 pp. 237-243, Pis. XI-XVII. 



1905. Ibid, (continued), XIII, pp. 5-22. 



1905. HOPKINS, A. D. The Black Hills beetle, with further notes on its distribu- 

 tion, life history, and methods of control. Bui. 56, Bur. Ent., U. S. Dept. 

 Agr., pp. 1-24, Pis. I, II, figs. 1-6. 



1905. QUIEVY, PROSPER. Dendroctonus micans, invasion. Bui. Soc. Centr. Fores- 

 tiere Belg., T. 12, pp. 334-335. 



1905. FELT, E. P. Insects affecting park and woodland trees. X. Y. State Mus., 

 Mem. 8, Vol. 1, pp. 6 r 7. 



1905. NUSSLIN, O. Leitfaden der Forstinsektenkunde, pp. 175-178. 



1905. Voss, FRIEDRICH. Uber den Thorax von Gryllus domesticus, mit besonderer 



Beriicksichtigung des Fliigelgelenks und dessen Bewegung. - Zeitschr. f. 



wiss. Zool., LXXVIII, pp. 268-521, 654-759, Pis. XV, XVI, XXIV. 

 1906a. HOPKINS, A. D. Barkbeetle depredations of some fifty years ago in the Pikes 



Peak region of Colorado. <Proc. Ent. Soc. Wash., VIII, Nos. 1-2, pp. 4-5, July 



13, 1906. 

 ]Qo^ HOPKINS, A. D. Notes on scolytid larvae and their mouthparts. Proc. Knt. 



Soc. Wash., VII, Nos. 2-3, pp. 143-149, Pis. IV, V, January 10. 

 1906c. HOPKINS, A. D. Notes on some Mexican Scolytidae, with descriptions of some 



new species. <Proc. Ent. Soc. Wash., VII, Nos. 2-3, pp. 71-81, January 10. 



1906. WEBB, J. L. Some insects injurious to forests. The western pine-destroying 



barkbeetle.<Bul. 58, Pt. II, Bur. Ent,, U. S. Dept. Agr., pp. 17-30, Pis. II, 

 III, figs. 7-12, August 18. 



1906. FELT, E. P. Insects affecting park and woodland trees.- X. Y. State \ 



Mem. 8, Vol. 2. 



1907. FALL, H. C., and COCKERELL, T. D. A. The Coleoptera of New Me: 



<Trans. Amer. Ent, Soc., XXXIII, pp. 145, 218. 



1908. SEVERIN, G. Le genre Dendroctonus. <Bull. Soc. Centr. Foresti<Ve Px 



Author's extra, pp. 1-20. Received May, 1908. 



1908. HOPKINS, A. D. Notable depredations by forest insects. <Yearbook ( . S 

 Dept. Agr., for 1907, pp. 149-164. 





