COLEOPTERA OF SOUTHERN CALIFORNIA. 221 



the latter species the eyes are distant very nearly their 

 full length from the nuchal constriction. 



H. pusio is much smaller, brownish in color, with a 

 differently punctate head, and differently proportioned 

 antenna! joints. 



H. occidentis is also much smaller, very slender, 

 entirely testaceous, with exceedingly small eyes, and the 

 last ventral of the male deeply cleft. 



19. Baptolinus punctiventris, sp. nov. 



Slender, rufous, elytra blackish, the basal margin, or at least the tips of 

 the humeral umbones, less dark. Head, exclusive of mandibles, quadrate; 

 hind angles broadly rounded, surface feebly alutaceous, excessively 

 minutely, sparsely punctulate, with setigerous punctures as follows: a 

 puncture over the insertion of the antennae, a larger one above the eye, 

 two smaller ones on the front, and a series of about eight at the hind 

 angles and along the posterior margin; beneath with a few moderately fine 

 punctures. Antennae not reaching the middle of the thorax, proportioned 

 as usual. Thorax as wide as, or very slightly wider than the head, paral- 

 lel, longer than wide, angles rounded; dorsal series of two punctures, one 

 near the middle, the other near the front margin and toward the side; 

 otherwise impunctate except for the usual marginal setigerous punctures. 

 Elytra barely equal in length to the thorax, glabrous except for the mar- 

 ginal setae, and a series of about five shorter setae in the sutural stria; 

 surface very finely, indistinctly punctulate. Abdomen rather sparsely, 

 but unusually coarsely muricately punctate, especially beneath. Last ven- 

 tral of male with a broad and shallow but distinct triangular emargination. 



Length, 5-6 mm. 



Five specimens from Lake Tahoe and Vancouver 

 Island. Mr. Schwarz writes that he has taken B. puncti- 

 ventris in the mountains of Utah. It is rather common 

 under bark, at Lake Tahoe. 



20. Actobius formosus, sp. nov. 



Form slender, piceous black; prothorax, legs, apical margin of elytra, 

 posterior margin of ventral segments, and basal three (sometimes two) 

 joints of antennae, yellow. Antennae slender, about as long as the head 



