324 RHYNCHOPHORA. [Cionus. 
and the insertion of the antenne 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 funiculus of antenne 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. . C. SCROPHULARIA, DL. 
b. Thorax with the sides only clothed with 
thick yellowish white pubescence; disc 
bare’) so Gs wes ass 5 - COC. TUBEROULOSUS Scope 
(verbasci, F.) 
B. General colour of elytra grey or greenish 
rey. 
aoe eaves subcylindrical, shagreened and 
pubescent almost to apex in both sexes; 
circular spot at apex of elytra often less 
developed than the anteriorone . . . . C, THAPSUS, F. 
b, Rostrum narrowed from the insertion of 
the antenne in both sexes, the narrow 
portion being glabrous, shining and scarcely 
punctured in the female; circular spots on 
elytra of equal size . C. HORTULANTS, Foure. 
2. Elytra with a large irregular patch behind 
scutellum and a sharply defined circular spot at 
apex black, the former often more or less eyitsa 
prevailing colour of elytra white .. . C. BLATTARIA, F, 
i. Clothing of elytra consisting of greenish grey 
aes and also of erect white sete; suture 
of elytra with a small black spot before middle, 
and another, often absent, atapex. . . . . . (C. onENS, F.) 
II. Prosternum not excavate before anterior coxe 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. PULCHELLUS, Herbst. 
C. scrophulariz, 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, antenne red, with the elub dark ; 
elytra broad, subglobose, with rather irregularly and somewhat strongly 
punctured striz, 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 
