284 Natural History Bulletin. 



occipital ones near the eye. AntciDicB more than one-half the 

 length of the body, joints first to eighth cylindrical, the first 

 large, second slightly smaller, third to eighth gradually 

 shorter. Ninth transverse, obconical, tenth transverse cunei- 

 form, last oval, somewhat oblique. Pal^i yellow. Prothorax 

 convex, widest behind the middle, highly polished, foveee very 

 large, the lateral ones partially hidden from view from above, 

 and having the appearance of a longitudinal elhpse. Elytra 

 convex, shoulders low, rounded, discal lines deeply impressed, 

 abbreviated behind the middle, before which they are nearly 

 parallel to the sutural lines. Abdomen convex, pubescent, the 

 basal segment lacking visible carinae. Lt^gs slender, paler 

 brown. ^ first dorsal similar to that of B. -perforata^ emarg- 

 inate in the middle behind, the second convex in the middle 

 and with a flat circular impression at base. 

 Habitat. Pacific States, Southern Cahfornia. 



B. BELFRAGEi, JLcc. Dark red-brown, polished, pubescence 

 short, elytra red, antennee and legs dark ferruginous. Length, 

 1.5 mm. Plate IX., Fig. 57. 



Head wider than long, eyes large, prominent, foveae equal, 

 large. AntcnncB longer than the head and prothorax, first joint 

 thicker than the second, nearly quadrate, second longer than 

 wide, third shorter, obconical, fourth to eighth equal, longer 

 than wide. Ninth a little larger, rounded, tenth rounded, as 

 long as wide, a little wider than the ninth. Last joint ovoid, 

 obliquely acute, wider than the penultimate. Prothorax as 

 wide as the head, much wider than long, sides very conver- 

 gent behind the middle, disk convex with equal pubescent 

 foveee. Elytra across the shoulders wider than the prothorax 

 and near the tip twice as wide; disk rather flat, slightly longer 

 than the width at the humeri, sutural lines deep, parallel. 

 Discal lines also deep, slightly convergent, turned outward 

 near the posterior end. Abdomen broad, flattened, the basal 

 carinae short, including more than one-third of the segmental 

 width, border strong. I with the basal segment deflexed pos- 

 teriorly, unifoveate in the middle; the second more convex, 



