THE GENUS DENDROCTONUS. 



109 



(Washington National Forest. Doming: North Fork Shoshone 

 i River, Wapiti. Additional localities from other collections: (A. M. 

 ft H.) Millwood, CaL; (U.S.N.M.) Columbia Falls, Mont. 



Host trees. Pinus lambertiana, P. monticola, P. murrayana and P. 

 oonderosa (common); Picea engelmanni (rare). 



Identified specimens. Le Conte, M. C. Z., 3; Horn, A. E. S., 1; 

 k. M. N. H., Webb collection, 1; Henry Edwards collection, 1; 

 [J.S.N.M., 2; D. A., 11; Webb collection, 14; Hopk. U. S., over 500, 

 ncluding different stages and work. 



*V '-V .> 



FIG. 68. Dendroctonus monticolse: Distribution map. (Original.) 

 BIBLIOGRAPHY AND SYNONYMY. 



Dendroctonus similis (not of Le Conte, 1860) Le Conte, 1876, p. 385 (in part), locality. 

 Dendroctonus n. sp. Hopkins, 1899b, pp. 14, 26, first record of habits and hosts. 

 Dendroctonus monticola Hopkins, 1901b, p. 67, referred to as new species but not 



described, habits, galleries. Hopkins, 1902c, p. 21, notes. Hopkins, 1905, 



p. 11, first description, distribution, characters, very brief. Webb, 1906, p. 22, 



mentioned. 



Dendroctonus monticolse, Hopkins, 1902a, p. 3, manuscript name. 

 De/idroctonus n. sp. (mountain pine Dendroctonus). Hopkins, 1904, pp. 19, 42, 45, 



habits, hosts, distribution, etc. 

 '.Mountain pine beetle. Hopkins, 1908, p. 162. 



10. Dendroctonus ponderosse Hopkins. 

 (PI. IV, fig. 10.) 



Adult. Type of species, female: Length, 6 mm., black; erytral 

 declivity with a few long hairs. Head with front convex, without 

 median elevation or groove, but with faint posterior impression; 

 'lytral rugosities moderately coarse and moderately dense, becoming 



