96 NEW YORK STATE MUSEUM 



32 brevicomis Lee. 



1876 Dendroctonus. Lecontc. Am. Phil. Soc. Proc. 15 -.384, 386 



1890 ^frontalis Zinim. Dietz. Am. Ent. Soc. Trans. 17:28 



1890 Dcndroctonus. Packard. U. S. Ent. Com'n, sth Rc-p't, p. 722 



1899 Dcndroctonus. Hopkins. U. S. Div. Ent. Bui. 21, p. 13 



1902 Dcndroctonus. Hopkins. Ent. Soc. Wash. Proc. 5:3 



1902 Dcndroctonus. Hopkins. U. S. Dep't Agric. Yearbook, p. 281 



1904 Dcndroctonus. Hopkins. U. S. Div. Ent. Bui. 48, p. 18 



1904 Dcndroctonus. Hopkins. U. S. Dep't Agric. Yearbook, p. 281 



1905 Dcndroctonus. Hopkins. Ent. Soc. Wash. Proc. 7:147, pi. 4 



1905 Dcndroctonus. Currie. U. S. Div. Ent. Bui. 53, p. 74 



1906 Dcndroctonus. Wehl). U. S. Div. Ent. Bui. 58, pt 2, p. 20-22, 9 lig. 

 Habitat. Cascade and Rocky mountain region of United States. 

 Food plants. Pinus po n d e r o s a , P i n u s la m b c r t i a n a. 



33 frontalis Fabr. 



iSoi (?), Fabricius. Syst. El. 2:389 



1868 Dcndroctonus. Zimmerman. Am. Ent. Soc. Trans. 2:149 



1868 Dcndroctonus. Leconte. Am. Ent. Soc. Trans. 2:173 



1876 Dcndroctonus. Leconte. Am. Phil. Soc. Proc. 15:384, 386 



1890 Dcndroctonus. Dietz. Am. Ent. Soc. Trans. 17 :28, 32 



1890 Dcndroctonus. Packard. U. S. Ent. Com'n, 5th Rep't, p. 722 



1892 Dcndroctonus. Hopkins. Ent. Soc. Wash. Proc. 2:353 



1892 Dcndroctonus. Hopkins. Science, July 29, 20:64 



1893 Dcndroctonus. Hopkins. W. Va. Agric. Exp. Sta. Bui. 31, p. 143; 



Bui. 32, p. 213 



1893 Dcndroctonus. Hopkins. Ins. Life, 5:187-89 



1893 Dcndroctonus. Riley. Ins. Life, 6:140 



1893 Dcndroctonus. Hopkins. Ins. Life, 6:126 



1894 Dcndroctonus. Hopkins. Can. Ent. 26 :28o 



1896 Dcndroctonus. Hopkins. Can. Ent. 28:250 



1897 Dcndroctonus. Chittenden. U. S. Div. Ent. Bui. 7. n. s. p. 72-75, 



fig- 43 



1898 Dcndroctonus. Schwarz. Ent. Soc. Wash. Proc. 4:81 



1899 Dcndroctonus. Hopkins. Ent. Soc. Wash. Proc. 4:343 



1899 Dcndroctonus. Lugger. Minn. Agric. Exp. 'Sta. Bui. 66, p. 315. 31", 



fig. 246 



1899 Dcndroctonus. Hopkins. W. Va. Agric. Exp. Sta. Bui. 56, p. 395 



1899 Dcndroctonus. Hopkins. U. S. Div. Ent. Bui. 21, p. 13, 14 



1901 Dcndroctonus. Hopkins. U. S. Div. Ent. Bui. 28, pi. XII 



1902 Dcndroctonus. Hopkins. U. S. Dep't Agric. Yearbook, p. 270-75 



1903 Dcndroctonus. Hopkins. Can. Ent. 35 :59 



1904 Dcndroctonus. Hopkins. U. S. Div. Ent. Bui. 48, p. 41, 44. pl- i. 



fig. 2: pi. VI, VII 



1904 Dcndroctonus. Hopkins. U. S. Dep't Agric. Yearbook, p. 270-75 



1905 Dcndroctonus. Hopkins. Ent. Soc. Wash. Proc. 7:80 

 1905 Dcndroctonus. Currie. U. S. Div. Ent. Bui. 53, p. 100 

 1905 Dcndroctonus. Felt. X. Y. State Mus. Mem. 8, 1:6 



