OTIORHYNCHIDES. 215 



Scrobes lateral, generally turned under eyes, but not 

 touching them ; rostrum longer and less thick than in 

 Barypeithcs and Omias ; thorax always broader than long ; 

 femora moderately clubbed, not toothed. 



Platytarsus, Schoenh. 



h h. Body hairy or bare, scrobes deflexed on 

 lower part. 



Scrobes lateral, deflexed on to under surface, the part 

 near margin deeper ; rostrum generally as long as broad ; 

 thorax generally broader than long; femora clubbed, rarely 

 toothed. Barypeithes, Duv. 



2? H, Scrobes not deflexed ; body without scales. 



Scrobes lateral, ending far from eyes ; rostrum thick, 

 rather long ; thorax somewhat broader than long ; femora 

 not toothed. Omias, Schoenh. 



2, Scrobes on upper surface of rostrum. 



A A. Head striate at sides and beneath. 



Eostrum as long as, and narrower than head, angular- 

 scrobes deep, widened behind, nearly reaching eyes ; an; 

 tennae inserted near middle of rostrum, more or less short 

 and robust, first two joints of funiculus elongate, nearly 

 equal ; thorax rounded at sides and base, truncate at apex ; 

 scutellum absent ; tarsi short, narrow. Caenopsis, Bach. 



1? -B. Head not striate at sides. 



Rostrum not longer than, and almost as broad at base as 

 head, angles nearly rounded, pterygia strongly divergent, 

 apex truncate ; antennae inserted near apex of rostrum, 

 rather long and robust, first two joints of funiculus elon- 

 gate, almost equal ; thorax transverse, sides and base 

 rounded, apex truncate ; scutellum rarely distinct ; body 

 closely covered with scales, without short, recumbent hairs. 



Peritehcs, Germ, 



b. Antennae long and slender. 



Eostrum at least as long as head, nearly horizontal, 

 robust, parallel-sided and angular or nearly rounded, or 

 entirely rounded at base, with pterygia more or less 

 divergent, apex more or less emarginate, upper-side often 

 with a ridge (bifid at apex) ; scrobes straight, deep and 

 visible from above in front, effaced behind ; antennae 

 inserted before middle of rostrum, first two joints of funi- 



