108 EHYNCHOPHORA — CURCULIONIDAE. 



Eostrum variable ; prosternum with channel, rarely 

 converted into a simple hollow ; eyes almost invariably at 

 least partly covered when rostrum is folded at rest; tliorax 

 generally with anterior margin prominent in middle or 

 sinuate at sides, usually with ocular lobes ; scutellum dis- 

 tinct or not ; elytra nearly always covering pygidium ; 

 anterior coxae prominent; tibiae generally hooked at apex; 

 tarsal claws simple. Cryptorliynchides. 



h h. Funiculus of antennae with five joints. 



Eostrum slender, moderately long, cylindrical, sometimes 

 gradually narrowed in front, scrobes oblique, quickly pass- 

 ing on to under-side ; prosternum short, channeled or not, in 

 latter case, anterior coxae contiguous ; scutellum distinct ; 

 pygidium more or less uncovered ; anterior coxae large, 

 tolerably prominent ; tibiae hooked at apex ; tarsal claws 

 variable. Gymnetrides. 



b. Anterior coxae placed close together, very rarely 

 slightly separated, in which case prosternum not 

 channeled. 



I, Elytra leaving pygidium more or less uncovered, 

 or if pygidium covered, tarsal claws appendiculate, 

 split or toothed. {Rliinomacer excepted). 



1, Intermediate abdominal segments angular at 

 extremities. 



A A. Funiculus of antennae with five joints. 



Peduncle of submentum narrow and prominent ; rostrum 

 long, not very robust, cylindrical, scrobes commencing a 

 little beyond middle, oblique ; eyes placed moderately apart 

 above ; elytra imperfectly covering pygidium ; tarsal claws 

 simple, generally soldered. Cionides. 



JB JS. Funiculus of antennae with six or seven 

 joints. 



Peduncle of submentum tolerably prominent ; rostrum 

 long, slender, cylindrical, scrobes connnencing more or less 

 far from apex and reaching eyes, latter far apart above ; 

 elytra covering pygidium or not ; tarsal claws appendiculate. 



Tychiides. 



2, Intermediate abdominal segments not angular at 

 extremities. 



Funiculus of antennae with six or seven joints. 



