THE GENUS DENDROCTONUS. 167 



1879. Peck, C. H.— Report of the Botanist. 28th Ann. Rep. N. Y. State Mus. Nat. 

 Hist., pp. 32-38. 



1881. Eichhoff, W. — Die europaischen borkenkafer, pp. 37, 125-128, Berlin. 



1882. Hough, F. B. — Report on Forestry, submitted to Congress by the Com- 



missioner of Agriculture, Part VIII, Insect ravages, pp. 259-274. 1. The 



injuries done to spruce and other coniferous timber by insects. 

 1885. Lintner, J. A. — Second report on the injurious and other insects of the 



State of New York, p. 54, Albany. 

 1887. Fletcher, J. — The spruce barkbeetle (D. rujipennis) .<i Appendix to the 



Report of the Minister of Agriculture. Report of the Entomologist and 



Botanist, pp. 39, 40. 



1887. Packard, A. S. — Insects injurious to forest and shade trees. <Bul. 7, U. S. 



Ent. Comm., pp. 175-177, 243. 



1888. Schwarz, E. A.— Proc. Ent. Soc. Wash., I, No. 1, p. 175. 



1889. Judeich, J. T., una Nitsche, H. — Lehrbuch der mitteleuropaischen forst- 



insektenkunde, pp. 458-462, Wien. 



1890. Dietz, W. G. — Notes on the species of Dendroctonus of boreal America. < 



Trans. Amer. Ent. Soc, XVII, pp. 27-32. 



1890. Packard, Alpheus S. — Insects injurious to forest and shade trees. Revision 



and enlarged edition of Bui. 7.<5th Rep. U. S. Ent. Comm., U. S. Dept. 

 Agr., pp. 721-722, 814-822, 903. 



1891. Harrington, W. Hague.— General notes. <Can. Ent., XXIII, No. 2, p. 27. 



Ibid, Science, XX, pp. 256, 257, November 4, 1892. 



1892. Pauly, A. — tJber die brutpflege und jahrliche geschlechterzahl des riesen- 



bastkafers, Eylesinus micans Ratz.<Forstlich-naturwissenschaftliche Zeit- 



schrift, I. Jahrgang, pp. 315-327. 

 1892a. Hopkins, A. D. — Notes on a destructive forest tree scolytid.<Science, XX, 



pp. 64-65, July 29. 

 18926. Hopkins, A. D.— Proc. Ent. Soc. Wash., II, p. 353, October 6. 

 1892. Schaufuss, C. F.— Barkbeetle destroyer.<Can. Ent., XXIV, No. 12, p. 316. 

 1893a. Hopkins, A. D. — Damage to forests by the destructive pine barkbeetle. < Ins. 



Life, V, No. 3, pp. 187-189, January. 

 18936. Hopkins, A. D. — Catalogue of West Virginia Scolytidae and their enemies.< 



Bui. 31, W. Va. Agr. Exp. Sta., p. 76, April. 

 1893c. Hopkins, A. D. — Catalogue of the West Virginia forest and shade tree insects. < 



Bui. 32, W. Va. Agr. Exp. Sta., pp. 174, 186, 188, 203, 213, 219, 225, 226, May. 

 1893a 7 . Hopkins, A. D. — Destructive scolytids and their imported enemy. < Ins. 



Life, VI, No. 2, pp. 123-129, December. 

 1894. Lintner, J. A.— Gardening, II, p. 292, May 15. 

 1894a. Hopkins, A. D. — Destructive scolytids and their imported enemy. <24th Ann. 



Rep. Ent. Soc. Ontario, pp. 71-76. 

 1894c. Hopkins, A. D. — The relations of insects and birds to present forest condi- 

 tions. <Garden and Forest, VII, p. 348. 



1896. Hopkins, A. D. — Some notes on insect enemies of trees. <Can. Ent., XXVIII, 



No. 10, pp. 246, 250, October. 



1897. Menegaux, A., et Cochon, J. — Sur la biologie de l'Hylesine brillant.<C. R. 



Acad. Sci. Paris, Tome 124, No. 4, pp. 206-209 (Abstr. Journ. R. Micr. Soc. 



Lond., pt. 2, p. 120). 

 1897a. Hopkins, A. D. — Report of Entomologist.<6th Ann. Rep. W. Va. Agr. Exp. 



Sta. for the fiscal year ending June 30, 1893, pp. 29-41. 

 1S976. Hopkins, A. D. — Report of Entomologist. < 7th Ann. Rep. W. Va. Agr. Exp. 



Sta. for the fiscal year ending June 30, 1894, pp. 35-36. 



