324 BHYNCHOPHORA. [Oionus. 



and the insertion of the antennae and of the last ventral segment of the 

 abdomen ; they are not however very striking. 



Seven species have been regarded as British, but one (C. olens) appears 

 to require further confirmation as indigenous, 



I. Prosternum concave and deeply incised on its anterior 

 margin ; second joint of fuuiculus of antennae elon- 

 gate, as long as the first. 



i. Clothing of elytra consisting of close pubescence 

 only. 



1. Elytra with two common circular black velvety 



spots, one before middle, and the other at 

 apex. 



A. General colour of elytra black. 



a. Thorax entirely covered with thick yel- 

 lowish white pubescence 0. SCBOPHULAKI^:, L. 



b. Thorax with the sides only clothed with 

 thick yellowish white pubescence ; disc 



bare C. TPBEECT/LOSUS, Scop. 



(verbasci, F.) 



B. General colour of elytra grey or greenish 



grey. 



a. Rostrum subcylindrical, shagreened and 

 pubescent almost to apex in both sexes ; 

 circular spot at apex of elytra often less 



developed than the anterior one . . . . C. THAPSUS, F. 



b. Rostrum narrowed from the insertion of 

 the antennae in both sexes, the narrow 

 portion being glabrous, shining and scarcely 

 punctured in the female ; circular spots on 



elytra of equal size C. HOBTULANTJS, Fourc. 



2. Elytra with a large irregular patch behind 

 scutelluui and a sharply denned circular spot at 

 apex black, the former often more or less brown ; 



prevailing colour of elytra white C. BLATTARLE, F. 



ii. Clothing of elytra consisting of greenish grey 

 pubescence, and also of erect white setse ; suture 

 of elytra with a small black spot before middle, 

 and another, often absent, at apex (C. OLENS, F.) 



II. Prosternum not excavate before anterior coxse nor 

 excised on its anterior margin (Cleopus, Steph.) ; 

 prevailing colour of elytra brown, with three longi- 

 tudinal patches at scutellum, a transverse fascia 



behind middle, and a small spot before apex, black . C. PUICHELLITS, Herbst. 



C. scrophulariae, L. Fuscous black, with two darker velvety black 

 circular spots on elytra, one before middle and another at apex ; thorax 

 entirely and breast thickly clothed with yellowish- white pubescence ; 

 the former small, transverse-conical, very closely sculptured ; rostrum 

 moderately long and curved, punctured, antennae red, with the club dark ; 

 elytra broad, subglobose, with rather irregularly and somewhat strongly 

 punctured striae, alternate interstices elevated and furnished with sub- 

 quadrate velvety black and greyish-white spots alternately ; there is 

 also a spot of whitish pubescence in front of shoulders, and the sutural 



