114 



THE SCOLYTID BEETLES. 



D, A., 14 specimens; Gillette, 2 specimens; Hopk. U. S., more 

 than 10,000 specimens, including all stages and work. 



Bibliography and Synonymy. 



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

 lection 1890). 



Dendroctonus approximatus Dietz, 1890, p. 31 (in part?) (specimen with type 

 series) . 



Dendroctonus ponderosie Hopkins, 1902a, p. 3, manuscript name only. Hopkins, 

 1903b, pp. 275, 282, p. xxix, figs. 28, 32, stages and work figured, and full account 

 of habits, life history, methods of control, etc. Hopkins, 1904, pp. 41, 43, 44, 

 PI. I, fig. 1, Pis. Ill, VIII, IX, XII, fig. 2, stages and work illustrated, habits, 

 host, distribution, etc. Hopkins, 1905, pp. 1-24, full account of history, hab- 

 its, life history, work, methods,of control, etc., Pis. I, II, figs. 1-6, stages and 

 work. Hopkins, 1906a, p. 4, old work. Hopkins, 1906b, p. 147, Pis. lA^ V, 

 figs. 1-5, anatomy of larval head. Fall, 1907, p. 218, list, locality. Hopkins, 

 1908, p. 162, depredations. 



Dendroctonus ponderosa Hopkins, 1902b, p. 10, brief original description, adult, etc., 

 galleries and work illustrated, fig. 1, Pis. I, III, IV, VII, full account of habits, 

 methods of control, etc. Hopkins, 1902c, p. 21, habits. Hopkins, 1903a, p. 59, 

 habits, etc. 



Fig. 71. — Dendroctonus ponderosx: Distribution map. (Original.) 



11. Dendroctonus jeflfreyi n. sp. 



(PI. IV, fig. 11.) 



Adult. — Type of species, female: Length 7.5 mm., black; elytral 

 declivity with a few long hairs. Head with front convex, with slight 

 anterior and posterior impressions, without frontal elevations; elytral 

 rugosities moderately coarse and dense, becoming much finer on lat- 

 eral area and coarser toward the vertex. Pronotum shining, sides 



