57 



CC The declivity acutely, rather feebly serrate; the elytra black, reddish 

 on the declivity, the interspaces feebly granulate and feebly 

 convex, densely clothed with greyish scales almost concealing the 

 surface; the female front unarmed. carri Sw. Page 57. 



AA Declivital interspace 3 much more strongly elevated than 1 ; 



B The elytra lightly punctate-striate, the strial punctures minute, the 

 interspaces wide, declivital interspace 3 very strongly carinate. The 

 head densely clothed with long pale hairs in one sex. Middle and 

 Southern States. bicristatus Chap. 



BB The elytra strongly punctate-striate, the strial punctures coarse; 

 the interspaces not wider than the striae; declivital interspace 

 3 strongly carinate. The front without long hairs in either sex. 

 New York state, Tennessee, Washington, D.C. bifurcus Eichh. 



Carphoborus carri Sw.; Dom. Ent. Br., Dept. Agric., Bull. 14: 17, 1916. 



Length, 1-6 to 2mm. 



Host tree. White Spruce. 



Distribution. Banff, Alta.; Edmonton, Alta; Aweme, Man. From 

 the eastern slopes of the Rockies across northern Alberta and Saskatchewan 

 into Manitoba; not yet found by us farther east. 



Carphoborus radiatae, n. sp. 



Length, 2-1 mm.; black with the elytra dark reddish; the pronotum 

 feebly constricted in front, densely, finely, deeply punctured, indistinctly 

 carinate, the pubescence minute, indistinct, yellowish; the elytra strongly 

 punctate-striate, the strial punctures coarse, the interspaces narrower, 

 convex, roughened, inconspicuously clothed with yellowish scales; the 

 declivity with the alternate interspaces subequally carinate and coarsely 

 serrate, the 3rd little more strongly and the 1st less strongly serrate. 

 The male has the front impressed, clothed with long yellow hairs; the 

 female has the front broadly concave in front, with a blunt median tubercle 

 surmounting the impression. Type; in Pinus radiata, Carmel, California; 

 2940; communicated by Mr. Ralph Hopping; three paratypes; Type No. 

 100. 



The Genus Pseudocryphalus Swaine. 

 Dom. Ent. Br., Dept. Agric., Bull. 14: 20, 1917. 



Pseudocryphalus brittaini Sw.; loc. cit., Bull. 14: 20, 1917. 



Length, 1-9 mm.; stout, black, with brown and gray scales; the front 

 plano-concave, with a strong, transversely arcuate impression behind the 

 epistoma, the middle line impressed, clothed with stout pubescence, becom- 

 ing long, dense and pale on the epistomal margin, with a rather coarse 

 granule behind the impression on each side the middle line; the eyes long, 

 narrow, extending upon the ventral surface. 



The pronotum twice as wide as long; the sides very strongly rounded 

 behind and very strongly constricted in front; the front margin broadly 

 emarginate at the middle; very densely subgranulately punctured, clothed 

 with brown and grey, very stout pubescence, the grey predominating on 

 the sides and behind; the cephalic margin unarmed or nearly so, somewhat 

 elevated, with pale fine pubescence and brown, elongate, elevated scales; 



