Mononyclius.'] 



RHYNCHOPIIORA. 



335 



where found ; Isle of Wight, Ventnor, Ac. ; Curtis says that for the first specimen of 

 this insect that he possessed he was indebted to Mrs. Griffiths, of Torquay, Devon, 

 but I have not heard of its capture in that county of late years. 



CCEIiXODES, Sckonherr. 



About forty species are included in this genus, which are widely dis- 

 tributed ; sixteen or seventeen occur in Europe and the remainder have 

 been described from Algeria, South Africa, Siberia, Persia, and North" 

 and South America ; they have been divided into seveial further snb- 

 gf>neTa.(Stenocarus,Allodactylui*, Cidnorrhinxs, &c.), by Thomson, AVeise 

 and Leconte ; they may be known by having the pectoral furrow con- 

 tinued on to the metasternum and the mesosternum plainly foveolate ; the 

 thorax is usually constricted -at apex, and the femora, as a rule, are 

 armed with a tooth beneath ; the form is short and broad ; the colour is 

 variable, and the underside is more or less thickly clothed with whitish 

 or yellowish- grey scales. 



I. Elytra without warty tubercles on interstices, 



except occasionally at sides and apex, 

 i. Posterior femora simple or obsoletely toothed ; 

 pectoral furrow continued to apex of tneta- 

 sternuin ; colour red, reddish-brown or yellowish- 

 red. (Al egacetes, Thorns. , Nedyus, auct.pars.) 

 1. Thorax without or with a very indistinct pro- 

 jection in middle of sides ; posterior femora 

 simple or at most furnished with a small 

 brush-like tuft of hairs on their underside, 

 rostrum more or less infuscate. 



A. Elytra red, without transverse waved 

 bauds, interstices convex and shining, 

 with one regular row of pale hairs on each ; 



rostrum entirely dark C. EUBICUKDrs, Herlst. 



B. El.ytra reddish-brown, with transverse 

 waved bands ; interstices flat, with pale 

 hairs or scales set closely in at least double 



rows. 



a. Rostrum entirely dark ; suture of elytra 

 dark for its whole length ; striae of elytra 



coarse C. QTTERCFS, F. 



(dryados, Gmel.) 



b. Rostrum red at apex ; suture of elytra in 

 part clothed with whitish scales ; striae of 



elytra fine C. BUBEB, Marsh. 



2. Thorax with an angular projection in middle 

 of sides ; male with the second ventral seg- 

 ment of abdomen furnished with a very dis- 

 tinct round f ovea ; posterior femora obsoletely 



toothed ; rostrum red C. EETTHBOLEUCTTS, Gmel. 



(subrufas, Herbst.) 

 ii. Posterior femora armed with a strong sharp 



tooth ; colour dark, dull. 



1. Pectoral channel deepest behind the inter- 

 mediate coxae and there ceasing, not reaching 

 the middle of the metasternum which is almost 



