228 Journal New York Entomological Society. t Vo1 - xxvil. 



ceous. Head wider than long, wider than the thorax at apex; eyes very large 

 strongly convex; frontal sulci strongly convergent but not joining at the clypeal 

 margin, a short outer sulcus on either side and two smaller sulci within ; 

 mentum with a strong entire tooth ; antenns short, reaching the base of the 

 thorax, joints sub-equal, twice as long as wide. Thorax strongly convex, twice 

 as wide as long, smooth, impunctate, three fourths the width of the elytra ; 

 sides strongly rounded, anterior and posterior angles not distinct ; basal trans- 

 verse impression strong, beaded, close to the posterior margin ; basal fovese 

 linear, short, strongly impressed, distant from the angles which are not cari- 



nate ; anterior impression distinct; median line scarcely visible; side margin 

 moderate, edge reflexed. The distance between the basal setae is very slightly 

 less than the width of the thorax at apex. Elytra three times as long as the 

 thorax, one half longer than broad ; disk slightly depressed ; sides moderately 

 and evenly arcuate from the rounded humeri to the apical one third, thence 

 strongly rounded to the apex ; basal margin entire below the disk. Sutural 

 stria; strong only on the apical third, the remaining very indistinct, their posi- 

 tions marked by six rows of coarse punctures, obliterated behind the middle ; 

 the punctures of the other rows are larger than those of the inner; the eighth 

 stria is indistinct from the margin and very strongly impressed ; two impressed 

 punctures on the third interval near the third stria at basal fourth and apical 

 third. Length, 3.5 mm.; width, 1.45 mm. 1 §. 



Huachuca Mts., Ariz., 7-05. (Beyer.) 



This species would be placed in Group XIII, sphaeroderum (Cy- 

 clolopha) of Col. Casey's revision, but differs from the species therein 

 described by its broader thorax and maculate elytra. It also differs 

 from B. cyclodes described by Bates from Southern Mexico (Biol. 

 Cent. Am. Col., i (I), p. 290) in form, maculation and elytral 

 sculpture. 



