1 82 MEMOIRS ON THE COLEOPTERA. 



This species is principally differentiable from any of the preceding 

 by the complete infra-lateral cephalic carinee, which unite with the 

 beaded margin of the buccal cavity; the head also is relatively 

 larger than usual. 



Strigota placata n. sp. Slender, convex, slightly shining, subalutaceous, 

 the fine punctures everywhere close; color piceous-black, the abdomen 

 black, the elytra not paler than the anterior parts; pubescence fine and 

 very short, the legs pale piceous-brown ; head nearly as long as wide, 

 parallel and evenly, feebly arcuate at the sides, the eyes rather small, at 

 very much more than their own length from the base, the carinae wholly 

 obsolete; antenna? unusually long, blackish-piceous, the basal joint flavo- 

 testaceous, thicker and rather longer than either of the next two, which are 

 long and subequal, fourth and fifth each distinctly longer than wide, the sixth 

 fully as long as wide, the tenth distinctly wider than long, the last as long 

 as the two preceding; prothorax unusually convex, very moderately trans- 

 verse, parallel and evenly rounded at the sides, fully two-fifths wider than 

 the head and rather wider than the elytral base, the basai angles rounded 

 and indistinct as usual, unimpressed; elytra moderately transverse, the 

 sides only just visibly diverging, the suture equal in length to the prothorax; 

 abdomen at base scarcely at all narrower than the elytra, gradually and feebly 

 tapering throughout, the tergites nearly flat, rather long and subequal, the 

 fifth not evidently longer. Length 2.0 mm.; width 0.38 mm. California 

 (Sta. Cruz). 



To be distinguished from the preceding by the longer antennae, 

 with longer fourth and fifth joints, by its more convex prothorax, 

 relatively shorter elytral suture, longer and more equal abdominal 

 tergites, with finer margins and by the wholly obsolete cephalic 

 carinse. 



Strigota seducens n. sp. Elongate-fusoid, only moderately convex, 

 slightly shining but with the minute and feeble punctures everywhere very 

 close; piceous-black in color, the abdomen black, the elytra scarcely visibly 

 less blackish, the legs pale piceo-flavate ; head as long as wide, parallel and 

 evenly arcuate at the sides, the eyes well developed, at only slightly more 

 than their own length from the base, the carina; fine but perfectly entire; 

 antennae moderate in length, gradually and very moderately incrassate, black- 

 ish, pale basally, the third joint evidently shorter than the second, the fourth 

 very little longer than wide, the fifth as long as wide and more obtrapezoidal, 

 the outer joints evidently transverse, the last narrowly oval, fully as long as 

 the two preceding; prothorax rather shorter and more transverse than usual, 

 parallel and evenly, strongly rounded at the sides, much wider than the head, 

 as wide as the elytral base, unimpressed; elytra moderately short, with di- 

 verging sides, the suture about a fourth longer than the prothorax; abdomen 

 evidently narrower than the elytra, parallel, narrowing very slightly toward 

 tip, the margins moderately thick, the first two tergites shorter, subequal 

 and strongly, subequally impressed, the fifth a little longer than the fourth. 

 Length 2.3 mm.; width 0.48 mm. California (Lake Tahoe).' 



