Coleopterological Notices, V. 559 



the base, the latter broadly, obtusely angulate ; sides strongly convergent, 

 evenly and distinctly arcuate ; disk with an acute lateral edge but devoid of 

 marginal stria. Scutellura distinct, small, equilateral. Elytra not as long as 

 wide, fully two and one-half times as long as the prothorax, and, near basal 

 third, distinctly wider ; apex transversely truncate ; sides strongly, evenly 

 rounded ; epipl"urse distinctly unistriate ; acute lateral edge feebly reflexed ; 

 disk with two short oblique and extremely obsolete elevated lines laterally at 

 base; suture gradually and feebly elevated, Propygidium partially covered 

 by the elytra, not exposed from above ; pygidium large, moderately indexed, 

 convex, shining, finely, sparsely punctate. Prosternal lobe short, not mar- 

 gined, parallel intercoxal striae distant ; posterior margin truncate, feebly 

 sinuate in the middle ; mesosternum not margined at apex. Length 1.45 

 mm. ; width 1.2 mm. 



California (8an Diego). 



A single specimen of undeterniined sex. Of marginatus I ob- 

 tained a single specimen at Austin, Texas. 



BACANIUS Lee. 



The general characters of this genus indicate a strong affinity 

 with Anapleus, and it bears much the same relation to the other 

 genera of Histrini that Abrseus does to Saprinus and its allies. 

 The prosternal lobe is strongly developed throughout the genus, 

 and there seems to be scarcely any other reason for associating it 

 with AbrtBus than the minute size of the body. Bacanius is a 

 very definitely limited and widely distributed genus, in which the 

 species are much better defined and more isolated among them- 

 .'^elves than in Acritus. The species of our fauna may be readily 

 identified as follows: — 



Elytra without an entire marginal carina. 

 Elytra without disoal striae. 



Elytra vvith a fine entire and oblique sublateral stria : elytral punctures 

 forming long coarse longitudinal rugae ; size minute. 



piinctiforinis Lee. 

 Elytra with a fine sublateral stria in apical half; elytral punctures dis- 

 tinct rounded and isolated ; size larger tantilllis Lee. 



Elytra with several coarse oblique discal striae ; surface very convex, the 



punctures isolated ; size still larger globlllintlS n. sp. 



Elytra with an entire marginal carina and an entire or subentire sublateral 

 stria. 

 Sublateral stria entire; pygidium very minutely and remotely punctulate. 



inisellus Lee. 



Sublateral stria abbreviated at base ; pygidium strongly and rather closely 



punctate debilitailS n. sp. 



