tt, Show Low, Santa Catalina Mountains. New Mexico: Vermejo, 

 ita Fe, Meeks, Capitan (Mountains), Cloudcroft. Texas: Davis 

 Mountains. Colorado: Fort Garland and Monte Vista. Utah: Esca- 

 lante and Panguitch. Additional localities from other collections. 

 (II. & S.) Chiricahua Mountains, Ariz. 



Host trees. Panus ponderosa var. scopulorum (very common), P. 

 edulis (rare), and Pseudotsuga taxifolia (rare, probably abnormal). 



Identified specimens. Horn collection, 2; Dietz, 1; U. S. N. M., 

 H. & S., 2, B. & S., 62; Hopk. U. S., more than 400, including all 

 stages and work. 



THE GENUS DENDROCTONUS. 



87 



FIG. 48.Dendroctonus barberi: Distribution map. (Original.) 

 BIBLIOGRAPHY AND SYNONYMY. 



Dendroctonus frontalis (not of Zimm.) Dietz, 1890, p. 32 (in part), Arizona. 

 Dendroctonus arizonicus Hopkins, 1902a, p. 3 (in part), manuscript name only. 

 Dendroctonus n. sp. Hopkins, 1904, pp. 42, 44, habits, host, distribution, etc. 

 Dendroctonus brevicomis var. barberi Hopkins, 1906b, p. 147, PL IV, fig. 9, anatomy 

 of larval head, manuscript name. 



3. Dendroctonus convexifrons n. sp. 



(Pi. m, ng. 3.) 



Adult. Type of species, female: Length, 6 mm.; reddish-brown, 

 shining. Elytral declivity with long hairs. Head with front convex; 

 without median frontal groove or tubercles, but with posterior impres- 

 sion. Elytral rugosities moderately coarse, but not densely placed, 

 except toward the base ; striae faintly impressed and with rather coarse, 

 indistinct punctures. Pronotum with long, erect hairs on the entire 



