COLEOPTERA OF SOUTHERN CALIFORNIA. 229 



Punctuation throughout very fine and sparse, the punctures of the sur- 

 face of the abdomen being especially distant on the dorsal surface but 

 more numerous beneath. Head a little narrower than the prothorax; 

 front evenly convex, transvei-se suture very fine but distinct, occipital 

 fovea wanting. Antennae moderately strongly incrassate, the second 

 joint equal in length to the two following, or very nearly so, the sixth to 

 the tenth transverse, eleventh about as long as the two preceding united. 

 Prothorax wider than long, sides nearly straight and parallel in about the 

 apical two-thirds, then rather abruptly rounded and slightly sinuately 

 convergent to the basal angles, which are obtuse but moderately well 

 defined; front angles rather broadly rounded; dorsal line fine. Elytra but 

 little wider and not much longer than the prothorax. Prosternal episterna 

 parallel, almost perfectly flat. Mentum more or less impressed at base. 

 Length, 2.5-2.8 mm. 



Five examples, collected at Pomona, Riverside, and 

 near San Bernardino, have been seen by the writer. 



B. clarus is a very pretty species which shows little 

 variation. 



35. Bledius rusticus, sp. nov. 



Moderately slender, piceous black, prothorax and elytra brownish yel- 

 low, legs and base of antennas testaceous. Head and prothorax densely 

 reticulate granulose, not shining; elytra polished; abdomen finely reticu- 

 late, moderately shining; punctuation rather sparse and fine throughout. 

 Head slightly narrower than the prothorax; antennal tubercles moderate; 

 front convex, transverse line faint, not at all impressed; no occipital 

 fovea. Antennas short, rather strongly widened externally, second joint 

 nearly as long as the two following, the sixth to the tenth strongly trans- 

 verse. Prothorax a little wider than long, sides feebly rounded and 

 nearly parallel in basal two-thirds, then broadly rounded and sinuately 

 convergent to the basal angles, which are obtuse and rounded; dorsal line 

 fine. Elytra very slightly wider at base than the prothorax and about 

 one-fourth longer, a little wider behind; abdomen gradually wider posteri- 

 orly. Prosternv;m not carinate; mentum broadlj' concave. 



Length, 2.4-3.7 mm. 



Three examples taken at Pomona. 



The prosternal sutures are parallel with the margin, 

 the hypomera parallel and slightly concave; coxal fis- 

 sures open. It is therefore to be referred to the annu- 

 laris group, and should probably stand near B. liitei- 

 pennis Lee. The latter is said to have the thorax not 



