BRACHYDERIDES. 227 



sided, somewhat rounded at angles, slightly convex above, 

 apex nearly entire, or moderately emarginate ; scrobes 

 narrow, abruptly curved ; antennae usually slender, scape 

 generally reaching much beyond posterior margin of eyes ; 

 scutellum very small, curvilinear triangular ; elytra some- 

 what broader at base than thorax ; legs moderately long, 

 tarsal claws soldered at base. Polydrosus, Germ. 



M JS, Scrobes not meeting beneath. 



Similar to Polydrosus but with rostrum very short, 

 parallel-sided, angular, flat above, apex slightly emarginate 

 or entire ; antennae moderately long, scape often curved, 

 reaching a little beyond posterior margin of eyes. 



Metallites, Germ. 

 2. Tarsal claws free. 



Rostrum at most as long as, and a little narrower than 

 head, parallel-sided or gradually narrowed in front, slightly 

 and narrowly emarginate at apex, flat and usually finely 

 furrowed above, scrobes rather deep, abruptly curved ; an- 

 tennae short or moderately long, not very robust, scape 

 reaching at most to posterior margin of eyes ; scutellum 

 very small; elytra considerably broader than thorax; tarsal 

 claws free. Sit ones, Germ. 



II. Elytra not broader at base than thorax, shoulders 

 rounded. 



i. Eyes only moderately prominent. 



A A., Rostrum considerably narrower than head, 

 rounded at angles, truncate or scarcely emargi- 

 nate at apex. 



Scrobes very short, rather deep and broad, moderately 

 curved, widened and effaced behind; antennae long and 

 slender, scape as long as funiculus ; thorax transverse, 

 slightly rounded at sides ; legs long, tarsal claws soldered. 



Eusomus, Germ. 



_B S, Rostrum nearly as broad as head, angular, 

 moderately emarginate at apex. 



Scrobes rather deep, short, abruptly curved, ending far 

 from eyes ; antennae long and slender, scape reaching more 

 or less beyond eyes, very slender ; thorax generally trans- 

 verse, sides slightly rounded ; legs long, tarsal claws soldered, 



Sciaphilus, Schoenh. 

 Q 2 



