32 [February, 



elongate-triangular scales similar in character though not so long as 

 those on the meso- and metasterna. The punctuation of the latter is 

 so sparse that it cannot be said that they are markedly whiter than 

 the rest of the underside. The scape is clavate, and the rostrum 

 confusedly punctured on its basal half ; the pubescence on the head is 

 adpressed ; the bristles on the pronotum and elytra are much less erect 

 than in C. timidtis ; the elytra have the interstices very uneven, and on 

 the outer side of the apical slope there are a few (8-10) broad triangular 

 tubercles ; the outer margin of the elytra in the basal third has about 

 ten rather distant semi-erect white hair-scales, and from thence to the 

 apex is ciliate with sub-contiguous white hair-scales. The type- 

 specimen is a female; it was almost destroyed in the process of 

 pinning, but in other respects is clean and in good condition. C. thom- 

 soni does not appear in Cat. Coleopt. Eur., 1906, where G. ruebsaameni 

 is put as a synonym of C. leprieuri, Bris. ; but according to a specimen 

 from Bone, Algeria, lent to me by Dr. Everts, the latter is a non-bristly 

 species ! 



C. timidus, Weise. This is, in niy experience, our commonest 

 species of the group ; it has the bristly clothing of the upper surface 

 more strongly developed than in any other species with which I am 

 acquainted. In the male the inner apical angle of the tibiae is produced 

 into a tooth ; there is a broad oval depression reaching from the hinder 

 edge of the metasternum to that of the second abdominal segment ; 

 in the middle of the last ventral segment there is a circular depression 

 which is bounded behind by a distinct ridge higher at each end than 

 in the middle. The surface of this depression is not more closely 

 scaled than the preceding ventral segment, and is concolorous with the 

 rest of the segment. All the femora are toothed beneath ; the tooth 

 on the middle pair is very distinct, that on the front pair very small, 

 and that on the hinder pair intermediate in size. In " Col. Brit. 

 Islands," VI, p. 195, it is said that the description of C. chalybseus 

 (op. cit., V, p. 348) must now be applied to C. timidus ; but the descrip- 

 tion in question refers to a species in which the elytral striae are almost 

 as broad as the interstices, and does not set forth the distinctive 

 characters of G. timidus. I have never seen a specimen of the latter, 

 British or foreign, in which the interstices were not, at least on the 

 disk, nearly twice as broad as the striae. 



C. moquntiacus, Schultze. On May 4th, 1912, I knocked from a 

 plant of Sisymbrium alliaria (Alliaria officinalis) at Colesborne, a 

 Geuthorrhynchus, which at once attracted my attention by reason of a 



