21 



rather coarse, not close, deep and distinct, bearing very minute setae; the inter- 

 spaces feebly convex, minutely punctured and with a median row of granules, 

 bearing very small elongate scales which hardly cover the surface, and a median 

 row of longer, erect, very stout bristles; the pubescence brown, with numerous 

 scattered white scales, more abundant towards the base and forming a narrow 

 band along the suture. The first two abdominal sternites subequal in length, 

 each longer than the next two united. 



Salmon Arm, B.C.; apple trees, in dying bark. First examined in com- 

 pany with Prof. W. H. Brittain. 



Pseudocryphalus cridd.ei, n.sp. 



This species is very closely allied to hriitaini; with the same size, form, 

 and colour; but it is apparently distinct through the very feebly impressed 

 elytral striae, and the small, very closely placed strial punctures. 



We have very few examples of brittaini and a longer series may show inter- 

 gradations with this species. 



Described from a series of 108 specimens from Aweme, Man., Prunus 

 virginiana; collected by Mr. Norman Criddle. 



Trypodendron borealis, n. sp. 



A series of males and females from Athabaska Landing, Alta., and Prince 

 Albert, Alta., is closely allied to bivittatum, Ijut represents a distinct species, 

 differing chiefly in the colouration of the pronotum, the shape of the male 

 pronotum, and the less impressed declivital striae. 



Description of the female. — Very closely similar to bivittatum in size and 

 colour, but with the light-coloured band of the caudal border of the pronotum 

 wider and extending to the side margins; and with the median black stripe on 

 each elytron nearly obsolete except at the top of the declivity. The elytral striae 

 are not impressed on the disc; the strial punctures small, but deeper than in 

 bivittatum; the interstrial punctures almost obsolete; the declivity with the first 

 and third interspaces elevated and finely uniseriately granulate, the first and 

 second striae together with the second interspace, which is there narrower, 

 impressed on the declivity to form a sulcus much as in bivittatum; the remaining 

 striae not impressed; the declivity brightly shining. 



The male is quite distinct from bivittatum. The head is similar, broadly, 

 deeply excavated above, with the cavity closely punctured and hairy about 

 the sides forming a close fringe about the sides and in front, smooth and shining 

 at the bottom with a distinct longitudinal carina. The pronotum, is subquadrate, 

 wider than long, slightly but distinctly longer than in bivittatum; the proportions, 

 length 11, width 14; nearly truncate and finely margined behind, the 

 hind angles narrowly rounded, subangulate; the sides faintly arcuate, sub- 

 parallel; the front angles rather narrowly rounded, the front margin broadly, 

 distinctly emarginate on the median half, strongly recurved in front so that the 

 front of the pronotum projects beyond the anterior foramen, which lies there- 

 fore entirely upon the ventral side of the pronotum; the disc shining, the asperi- 

 ties as in bivittatum, but rather less numerous, broad and very short, larger in 

 front, distinct to the hind margin on the disc, nearly obsolete on the sides, 

 closely punctured in front with close stiff hairs chiefly from the under side of the 

 frontal projection; with the pale caudal band very wide, extending to the side 

 margins, projecting cephalad on the middle of the sides nearly to the front 

 margin, leaving the front margin, the summit and the anterior half of the lateral 

 margins black; the sides hairy only about the margin, the hairs from the front 

 margin long and erect. The elytra are as in the female. 



