THE CANADIAN ENTOMOLOGIST. 313 



stretches across the elytra and which are smooth and as if planed down, 

 marginal stria very lightly curved round the humerus and sinuate on the 

 extreme edge, body below livid, with lighter epimera, abdominal sides and 

 pygidium, legs yellow-brown, with clouds and spots on the thighs. 



Two £'s, Bill Williams' Fork, Arizona; V , St. George, Utah. Type 

 coll., Bowditch. 



Pachybrachys longus, nov. sp. — Medium sized, elongate, slender, 

 cylindrical, dull pale yellow, with brown punctures and striae. Length, 

 3 mm. 



Head yellow, front almost flat, thickly punctate, with dark median 

 line and vertex, eyes close (for female), probably nearly approximate in 

 $ , which is wanting, antennae thin, yellow, darker towards the tip, reach- 

 ing middle of body ( <? ), thorax about one-half as long as elytra and nearly 

 as long as wide, a little rounded and narrowed at front and rear, yellow, 

 thickly covered with fine brown punctures, which have a tendency to 

 thicken, where the M spots would come, and leave the sides free, lateral 

 edge very finely subangulate and sinuate behind, transverse depression 

 very moderate ; elytra yellow with moderate brown punctures, which are 

 diffuse on the anterior half, except for the third, fifth and humeral intervals, 

 which are complete to the base, shield well marked, intervals behind 

 smooth and well marked, tip smooth, marginal stria very lightly curved 

 and sinuate, lobe broad and well developed, with a marginal row of punc- 

 tures which do not go beyond the humerus anteriorly, below and legs 

 yellow and livid, variegated, with the epimera, last segment and pygidium 

 yellow, the last with three livid spots ; fossa deep and rounded. 



One 9 , Tucson, Arizona. Type coll., Bowditch. 



Pachybrachys proximus, nov. sp. — Medium sized, cylindrical, pale 

 yellow, with livid clouds and punctures. Length, 2^ mm. 



Head with pubescent, and nearly fiat front, punctured, with heavy 

 frontal and vertex marks, the former divided so as to include the roots of 

 the antennae, which are quite dark throughout, but have the basal joints 

 somewhat brown-red, and reach a little beyond the middle of the body, 

 eyes distant ( <3 ), thorax yellow, wider than long, narrowed at front and also 

 a little at rear, in its greatest length not quite half as long as the elytra, 

 thickly but unevenly, finely, livid-brown punctured, M diffusely indicated 

 by the thickening of the punctures, which leave the edges more or less 

 free, especially the sides and anterior angles, lateral edge subangulate and 



