364 THE CANADIAN ENTOMOLOGIST 



above, with the median carina very fine and nearly obsolete; the 

 pubescence very short and indistinct. 



The elytra are one-half longer than wide, 25:17.5; slightly 

 wider than the pronotum; the base strongly arcuate, raised and 

 serrate as usual with lunar asperities becoming acute and isolated 

 on the sides; with the striae narrow, deep, distinctly and closely 

 punctured; the interspaces wide, granulate-punctate and asperate 

 as usual, more densely and coarsely towards the base; the asperities 

 becoming uniseriate behind ; the first and third interspaces strongly 

 raised on the declivity, and the asperities as a row of small teeth 

 with granules intermixed; the second interspace convex but less 

 strongly raised, closely punctured and with a row of very few and 

 much smaller points; the reddish pubescence very short, abundant 

 but indistinct, denser, more evident and scale-like on the declivity, 

 with minute slender hairs from the asperate punctures. 



The male has the front widely and deeply impressed with a 

 median carina on the cephalic half; the pronotum very broadly 

 arcuate on the caudal half, and very strongly narrowed in front, 

 with the median line fine and slightly elevated; the elytra with 

 the discal asperities very sparse, but on the declivity the first and 

 third interspaces bear each a regular row of large, compressed, 

 black-tipped teeth ; those of the first interspace are strongly com- 

 pressed, with the distal edge elongate, the anterior angle rounded, 

 the posterior angle elevated and acute, situated on the lateral half 

 of the interspace, the mesal half of which is smooth and finely 

 punctured ; those of the third interspace smaller and more numerous 

 than those of the first; the second interspace as wide as on the disc, 

 flat, finely punctured and entirely without asperities; the fifth, 

 seventh and ninth interspaces each with a row of much smaller 

 but very distinct serrations. The pubescence is slightly longer on 

 the declivity and less scale-like. 



One male and one female from Stockton, Utah, through the 

 kindness of Mr. W. Knaus. These are probably sexes of the same 

 species, and are distinct from Leconte's type of serratus. Type 

 number, 2182. 



Phloeosinus hoppingi, n. sp. — A very small species, with 

 the alternate interspaces on the declivity strongly serrate. The 

 length, 1.9 mm.; width, 1 mm.; the colour black, the basal margin 



