242 THE CANADIAN ENTOMOLOGIST. 



Pachybrachys Coloradensis, nov. sp. — Small, above pale grayish- 

 white, form elongate, slender, elytra parallel, striate, punctate. Length, 



i • | -2 ' _.' mill. 



Mead large, front nearly Hat, rather thickly, brownly punctate, with 

 narrow brownish frontal line, and more or less of a cloud on the vertex ; 

 eyes distant, antennae with first five joints and base of sixth light, after 

 that dark, a little more than half the length of the body; thorax thickly 

 and rather evenly brown punctate, except the edges, depressed behind and 

 often with a small brown spot in the depression before the scutel, edge 

 very lightly and indefinitely rounded ; elytra cylinder-shaped, covered 

 with stria) of dark brown punctures, which are diffused in the vicinity of 

 the scutellum and slightly irregular behind and below the humerus ; lobe 

 moderate, 9 with a very well marked row of marginal punctures from 

 upper edge of the curve to end of sinuation, $ usually not quite as 

 numerous nor well marked, below black, with epimera, sides of abdomen, 

 venter and pygidium whitish-yellow ; legs yellow, with darker spots or 

 clouds on thighs ; in some specimens the black of the body under the 

 elytra seems to show through the elytra ; the sutural row of punctures is 

 on the edge, and gives the appearance of a very fine black line. 



Seven £ 's, five 9 's, Colorado Springs, Colorado; Coolidge, New 

 Mexico; Clear Lake, Utah. All coll. by Wickham. Type coll., 

 Bowditch. 



Of about the size and shape of P. densus, Bow., but lighter in colour 

 and at once separated by the punctate striate elytra. 



Pachybrachys densus, nov. sp. — Small, above pale testaceous, or 

 dirty-yellow, very thickly and finely, diffusely, brown punctate. Length, 

 ^Y\-2]/2 mm. 



Head slightly convex in front, the usual dark frontal markings hardly 

 visible, thickly and finely punctulate ; eyes distant ; antennae dirty-brown, 

 reaching to first segment of abdomen in % ; thorax wider than long, thickly 

 and evenly punctate without darker clouds, depressed behind, sides sub- 

 angulate ; elytra of same colour as thorax and entirely, diffusely, thickly 

 punctate, though in one specimen the course of the third, fifth and 

 humeral intervals can be traced ; lobe small, wholly occupied by punctures, 

 marginal stria very lightly curved and barely sinuate behind ; body 

 beneath dark, with the epimera, abdominal sides and pygidium picked out 

 in lighter colour; legs light, with dark rings on thighs. 



$ , $ , Arizona. Type coll., Bovvditch. 



