112 RHYNCHOPHORA — CURCULIONIDAE. 



or nearly so, very rarely rounded at angles and not parallel, 

 scrobes complete in front, reaching eyes or nearly so ; thorax 

 with or without ocular lobes, prosternum nearly always 

 emarginate in front. Bhyjparosomides. 



IB JB, Submentum without peduncle. 



Eostrum more or less robust, 'received at rest into a 

 channel on prosternum, scrobes linear, curved ; thorax 

 with prominent ocular lobes, entirely covering eyes when 

 at rest ; tibiae not hooked at apex ; tarsi narrow, not spongy 

 beneath ; third joint not broader than second ; metasternum 

 very short. Byrsopsides. 



J5. Maxillae wholly or for the greatest part covered by 

 mentum. 



Submentum without peduncle or with only a trace of it ; 

 rostrum more or less robust, scrobes reaching mouth or 

 nearly so. 



a» Thorax with ocular lobes ; eyes generally large, 

 transverse, pointed beneath and at least partly 

 covered when at rest. 



Scrobes linear, turning on to under-side ; antennae 

 elbowed. Zeptopsides. 



h. Thorax without ocular lobes; eyes round or short 

 oval, not covered. 



I, Scrobes variable, but never both linear and directed 

 downward. 



Antennae elbowed, scape reaching beyond eyes behind, 

 funiculus with seven (very rarely six) joints. 



Otiorhynchides. 



II. Scrobes linear, directed downward. 



Antennae elbowed, scape variable in length, funiculus 

 with seven (rarely six) joints. Brachyderides. 



COSSONIBES. 



A, Funiculus of antennae with seven joints. 



a. Scape of antennae reaching eyes or nearly so, but not 

 reaching on to them ; second joint of funiculus very short. 



I, Eyes prominent. 



