120 RHYNCIIOPHORA — CURCULIONIDAE, 



A A. Thorax with ocular lobes. 



Eostrum elongate, moderately robust ; scrobes coni- 

 uiencing about one-third of length from apex of rostrum ; 

 first three joints of funiculus of antennae elongate ; thorax 

 nearly as long as broad ; elytra very convex ; pygidium 

 uncovered. Ehytidosomus, Schoenh. 



jB H. Thorax without ocular lobes. 



Similar to CeuthorhyncJius except in funiculus of 

 antennae. Ceuthorhynchidetis, Duv. 



2, Funiculus of antennae with seven joints. 



Rostrum generally slender, scrobes commencing in oi' 

 near middle ; first two joints of funiculus of antennae 

 elongate, rest gradually decreasing in length ; thorax rarely 

 as long as broad ; elytra moderately or only slightly convex ; 

 pygidium uncovered. Ceuthorhynchus, Germ. 



b, Prosternal channel for reception of rostrum continued 

 on to mesosternum. 



I, Fourth tarsal joint moderately long, with two 

 claws. 



Eostrum elongate, at most moderately robust; scrobes 

 commencing near middle ; funiculus of antennae with 

 seven joints, first two elongate, nearly equal, third and 

 fourth longer than last three ; tarsal claws more or less 

 toothed at base ; pygidium not covered. 



Coeliodes, Schoenh. 



II, Fourth tarsal joint very short, with only one 

 claw. 



Head with fine central ridge, forehead slightly impressed ; 

 rostrum elongate, not very robust, scrol)es commencing 

 near middle ; funiculus of antennae with seven joints, 

 first two elongate, first longer than second, the other five 

 short, nearly equal ; pygidium not covered. 



Mononychus, Germ. 



Atnalus, 



Short ovate, convex. Black ; under-side with white 

 scales ; legs and base of antennae rust-red ; thorax and 

 elytra strewn with very small grayish scales, latter red- 

 brown at apex or entirely brown, the grayish scales rather 

 closer at suture and forming a spot at base. Thorax strongly 



