634 Goleopterological Notices, VI. 



as the prothorax and a little more than twice as long as A\ide, parabolic in 

 a))ical fourth ; sides parallel ; luinieri evenly rounded to the prothorax, becom- 

 ing transverse just before that limit; impression within the humeri just trace- 

 able; disk moderately coarselj' punctate as usual, the shining interspaces finely 

 punctate. Under surface finely densely and uniformly punctate and pubescent- 

 Length 7.0 mm.; width 1.9 mm. 



California (Hoopa Val., Humboldt Co.). 



This species is represented b^- a single male, which has the fifth 

 ventral segment broadl}' truncate at apex ; it resembles variipes 

 in general form, but differs in coloration, smaller size, relatively 

 much smaller head and prothorax, the latter without a well marked 

 median channel, denser vestiture and several other characters. 



S. iiiillius. — Stout, convex, black throughout, the tibia^ just visibly ru- 

 fescent; elytra opaque, the surface scarcely at all visible through the dense 

 cinereous vestiture which clothes every part of the body. Sead small, dis- 

 tinctly shorter and narrower than the prothorax, almost as long as wide, 

 densely opaque, the surface concealed; eyes separated by a little more than 

 twice their own width on the front; tempora rather more prominent than the 

 eyes and about two-thirds as long; antennse slender, but little longer than the 

 head and prothorax, the stouter basal joint not paler. Prothorax slightly wider 

 than long, sculptured and clothed like the head, rounded on the sides anteri- 

 orlj', thence feebly, obliquely narrowed to the dilated basal margin; apical 

 constriction fine but deep, the lobe crescentiform, rounded on its anterior mar- 

 gin though short; lateral impressions distinct; canaliculation narrow but very 

 deep, appearing like a coarse crack. Elytra tAvice as wide as the prothorax, 

 but slightly more than twice as long as wide, gradually narrowed and para- 

 bolically rounded behind in apical two-fifths; sutiiral angles rounded; humeri 

 slightly rufeseent, rounded to the prothorax, the humeral impression slight; 

 disk with composite punctuation as usual, the interspaces shining but almost 

 completely concealed excei)t toward base. Abdomen extremely densely punc- 

 tulate and pubescent. Legs normal. Length 11.5 mm. ; width 3.3 mm. 



Southern California. 



The unique t3'pe of this very distinct form is probably a female;, 

 the dorsal pygidium is almost completely visible and porrect be- 

 hind the elytra, and the fifth ventral is slightly longer than the 

 fourth, narrowed behind, the apex rather narrowly truncate, th& 

 basal margin rufeseent. 



S. I'llfipes. — Kather slender, black, shining, the vestiture but slightly 

 concealing the surface lustre ; legs testaceous ; pubescence stiff, j-ellowish-cinere- 

 ous in color, feebly nucleated on the elytra. Head slightly wider than long, 

 strongly, very densely and rugosely punctate; eyes large, globose, sejiarated 

 \)y one-half more than their own width, the tempora behind them much less- 

 prominent and only about one-third as long; antenna- very slender, filiform,- 



