240 THE CANADIAN ENTOMOLOGIST. 



• . : , m 



lateral edge with a wide, red border ; semi-shining, thickly and evenly 

 punctured, and with a smooth and slightly raised median line; narrowed 

 in front, depressed and somewhat narrowed behind, with an impressed 

 marginal line, making a prominent ante-scutella lobe, lateral edge curved; 

 elytra black, with a wide red border, which is partially interrupted on the 

 edge, at the convexity ; this border makes an almost straight continuation 

 of the thoracic border, surface closely and diffusely punctate, except the 

 two side intervals arc well marked, and in the rear the two intervals nearest 

 the suture ate plain ; in some parts of the others the punctuation is finer 

 and sparser at the rear, all below black, with silvery pubescence. Near 

 limb at us, Neum. 



One £ . Prescott, Arizona. Type coll., Bowditch. 



Pachybrachys /acobyi, nov. sp. — Colour above pale yellowish-gray ; 

 form stout, robust, shiny, suffusely punctate, slightly narrowed towards the 

 front. Length, 2^-4 nun. 



Head broad and flattened, thickly and coarsely, very light brown 

 punctured, with impressed frontal line ; eyes notably distant in both sexes, 

 and rather small compared with the size of the head, antennae reaching 

 about the hind coxae in <$ , not (juite as long in ° ; first five joints yellow, 

 the remainder gradually dark, with bases of six and seven light ; thorax 

 stout cylindrical, slightly narrowed towards the front, rear edge swollen 

 and depressed, thickly and irregularly finely light brown punctured, the 

 sides excepted ; lateral edge moderately curved, slightly sinuate in ° 

 toward the rear; elytra diffusely and thickly, finely light brown punctate, 

 not, however, as diffusely as thorax, the punctures arranged towards the 

 rear and sides in lines of greater or less length, but not costate or ridged, 

 except that the third, fifth and humeral intervals are at times traceable to 

 a greater or less extent, and a sutural shield is sometimes indicated in the 

 usual place ; curve of the marginal stria very moderate, round the 

 shoulder, and the almost straight edge and lobe rather swollen, especially 

 noticeably in % round the shoulder-hump ; very lightly punctulate on the 

 edge of the curve ; neither of these features are as noticeable in the $ . 

 All below with legs entirely pallid, except that the meso- and metasternum 

 and the rings of the abdomen are somewhat suffused with brownish-black; 

 fossa moderately deep, punctured. 



The typical form occurs in California, Arizona, Utah ; certain speci- 

 mens from La Junta, Colorado, which I refer to this species are much 

 more coarsely punctured and have a greenish tint to the elytra ; in some 



