266 Trans. Acad. 6'ci. of St. Louis. 



behind the middle; elytra nearly as in densicollis but with the humeri 

 slightly more exposed at base and the punctures coarser, more asper- 

 ate and less close-set, more nearly as in notata; abdomen as in densi- 

 collis but with the punctures toward base notably coarser and conspic- 

 uously close throughout the extent of the tergites. Length 3.0-3.3 ram.; 

 width 0.73-0.8 mm. California (Humboldt Co.). l=^Bolitochara calif. 

 Csy.] californica Csy. 



6 — Form rather stout, convex, shining, not at all reticulate, dark castane- 

 ous, the elytra pale testaceous, blackish externally toward tip; abdo- 

 men very dark rufous throughout except subapically ; head longer than 

 usual, about as long as wide, strongly and closely punctate; antennae 

 rather slender, only moderately incrassate distally, extending to about 

 basal third of the elytra, the subapical joints moderately transverse; 

 prothorax unusually elongate, about a fourth wider than long, convex, 

 distinctly wider than the head, broadly rounded at the sides just before 

 the middle, finely, rather closely, asperately punctured, the impressions 

 short, feebly converging, only visible behind the middle; elytra nearly 

 one-half wider and longer than the prothorax, unusually, coarsely, very 

 asperately and not very closely punctured, the humeri rather well ex- 

 posed; abdomen narrower than the elytra, unusually tapering almost 

 from the base to apex, the punctures unusually coarse, close-set and 

 even, sparser and finer toward tip as usual. Length 2.7-3.0 mm. ; width 

 0.78-0.83 mm. California (locality unrecorded) .. .punctiventris n. sp. 



Form less stout, similarly polished and devoid of reticulation, paler, cas- 

 taneous, the elytra rufous, blackish externally toward tip, the abdomen 

 much paler than in punctiventris, with tbe usual black subapical cloud 

 but with the segments thence to the base blackish at the middle, the 

 legs very pale; head almost as in the preceding but more finely and 

 sparsely punctate, the antennae shorter, much more rapidly and 

 strongly incrassate distally, the subapical joints strongly transverse, 

 the fourth less elongate; prothorax more transverse, a third wider than 

 long, distinctly wider than the head, more feebly and less closely, 

 asperulately punctate, the impressions similarly only distinct near the 

 transverse impression; elytra narrower, less transverse, almost as long 

 as wide, almost as coarsely and asperately punctate, the punctures very 

 slightly more numerous; abdomen more parallel, much narrower than 

 the elytra, the punctures much finer and sparser, more distinct but still 

 sparser in the basal impressions. Ler.gth 3.0 mm.; width 0.73 mm. 

 California (Mendocino Co.) aspera n. sp. 



Form more slender and parallel than in aspera, the elytra relatively smaller 

 than in any other species; coloration nearly similar, the pale basal parts 

 of the abdomen without distinct medial blackish maculation; integu- 

 ments not minutely reticulate, polished ; head and antennae as in aspera, 

 the punctures stronger and closer toward base ; prothorax less trans- 

 verse, about a fourth wider than long, only very slightly wider than the 

 head, the punctures small but strongly asperate, moderately close-set; 

 impressions very short and feeble; elytra about a third wider and two- 

 fifths longer than the prothorax, rather more coarsely and asperately 

 punctured than in any other species, the punctures well separated; abdo- 

 men subparallel, narrowed toward tip, less distinctly narrower than 



