140 RHYNCHOPHORA — CURCULIONIDAE. 



tibiae with only a few spines before apex. L. 1| — 1| 1. 

 Not common. C. suhrufus, Herbst. 



I). Scutellum scarcely visible ; elytra black. 



Short ovate. Black ; tibiae and tarsi dark reddish ; 

 covered with whitish scales, closely beneath, more scantily 

 and in spots above, elytra with a composite lateral spot 

 (rarely absent) and base and apex of suture closely covered 

 with white scales. Thorax strongly punctured, with a 

 shallow central furrow (deeper before and behind) and 

 small lateral tubercles ; elytra short, convex, with punc- 

 tured furrows ; femora toothed. L. 1 — 1\ 1. Common. 



C. quadrimaculatus, Lin. 



S. Elytra with many small tubercles placed together before 

 apex. 



Ovate. Black, dull; under-side covered closely with 

 white, upper-side scantily with brown scales, base of suture 

 of elytra with a velvety black spot, marked in front with a 

 white point (sometimes absent). Forehead flat, not im- 

 pressed ; thorax somewhat narrowed in front, with shallow 

 central furrow (interrupted in middle), and conical lateral 

 tubercles ; elytra with fine, indistinctly notched striae, in- 

 terstices flat and broad ; femora toothed. L. 1| 1. Common. 



C. fuliginosus, Marsh. 



C. Elytra with a regular row of small tubercles on inter- 

 stices. 



a. Thorax with anterior margin not raised, transverse 

 impression near apex feeble. 



Black; under-side covered with white scales. Thorax 

 with very small lateral tubercles ; elytra with deep punc- 

 tured striae ; femora toothed. L. 1 1. Moderately common. 



C. geranii, Payk, 

 h. Thorax with anterior margin much raised, transverse 

 impression near apex strong. 



Similar to G. geranii but deeper black, shiny, with thorax 

 more finely punctured, tubercles on elytra larger and bear- 

 ing longer bristles, and femora more distinctly toothed. L. 

 1 1. Not uncommon. G. exiguus, 01. 



Mononychus, 



Short ovate, rather flat. Black ; funiculus of antennae 

 reddish-yellow-brown ; upper-side with hairlike light gray 



