North American Coleoptera. 199 



pup^; the figure shows one somewhat extended, in life thev 

 hunch up the back and appear relatively shorter, the head 

 being scarcely visible. Length 9-10 mm. 



Head small, concave in front, somewhat narrowed behind, 

 thickly clothed with rather long compound scales of the form 

 afterwards described, each situated in a distinct puncture. 

 The intervening spaces are minutely roughened. 



Eyes. After careful search I tind only two ocelli situated 

 a little behind the base of the antennte. 



Antennce inserted rather far back, at the sides of the head, 

 four-jointed, the basal joint large, wide, second joint about as 

 wide as lon^f, thu'd ioint more than twice as lonor as wide and 

 tipped with a small sharp pointed tubercle which constitutes a 

 fourth joint. The third joint also bears, close to the tip, a 

 small bristle-tipped appendage which is drawn a trifle too 

 large in the figure. Excepting a few bristles close to the tip, 

 the antennte are quite naked. 



r^iandibles rather stout, arcuate, pointed at tip, armed on 

 the inner or cuttinfj edge with five small teeth, the distal one 

 of which is the largest. The outer portion is prolonged into 

 a long, sharp, fang-like tooth. In the lower inner angle of 

 the mandible is a bod}' of very fine consistence, extremely 

 thin and plate-like, fringed around the edge, it is shown in 

 fig. 2^ 



Maxillie with the inner part sub-triangular in outline, the 

 tip somewhat deflected outward, and covered with very small, 

 thick bristles, they might almost be called cusps. Palpus 

 three-jointed, the joints increasing in length and decreasing in 

 width from the first to the third. ?vlentum with short, two- 

 jointed palpi, the basal joint thick, the second more slender 

 and tapering. 



Prothorax a little wider than long, angulate behind the 

 middle an-d bearincr on each side of the median line a large 

 scute Vv'hich is covered with scales or bristles of the form 

 shown in fig. 2'. The remainder of the surface is nearly 

 naked, presenting the appearance, under high power, of being 



