168 tJ"'^' ^^''''• 



readily seen with even a strong lens (see also cellaris). This 

 character, combined with the hook-shaped tooth at the anterior 

 angles of the thorax, the close, even pubescence and the slender 

 central joints (tj, 7 and 8) ot" the antenna', makes identification easy. 

 The insect occurs in all sorts of places. I have a specimen from 

 the District Eailway, and others fi-oiii Welbeck Street. It is the 

 C. unclnatas of Stephens (111. Mand., iii, 75). C. icaterhousei of Hye, 

 described Ent. Mo. Mag., vol. iii, |). 101, is a monstrosity of the 

 species, and is a[)parently the C. liei/denl of Reitter (Revis., 3G). 



C pubescens. — The two-jointed club prevents any mistake as to 

 the insect. Its inclusion in the table under I. A. is, however, con- 

 venient as helping to explain these characters. The insect occurs 

 chiefly in wasps' nests in September and October, I believe all over 

 the Kingdom. 



C.fumatus is a large species with a small thorax. My speci- 

 men from Forres was originally named for me C. ilentalus, but 

 besides being much larger it has the elytra less parallel-sided and 

 wider proportionately to the thorax. 



C. hadius. — The very transverse thorax with a decided fui-row or 

 basal fold, and the tooth in the middle of the side, and the distinct 

 puncturation towards the base of the elytra, are the best characters. 

 1 have it from Sevenoaks. Mr. Newbery tells me he has taken it 

 freely in his London garden. He has pointed out to me that the 

 callosities of the front angles of the thorax are cup-shaped. 



C. fuscicornis I have never seen. The characters are taken from 

 the description in Ganglbauer. 



O. ijoptili is to be known by its stout antenna;. Sometimes, and 

 apparently on the Continent normally, there is a dark coumion patch 

 on the elytra, usually wanting in English specimens. Mr. G. C. 

 Champion tells me that among the specimens taken by him at I^'arn- 

 ham, below the burrows, of ColJctcs daviesana (and not in them, as 

 mentioned in Fowler), there occurred a number of small light 

 specimens which would have been extremely difficult to identify had 

 they occurred without the usual form. 1 have apparently oue of 

 these small specimens from South Wales. The antennae are, however, 

 I think unmistakable, but the club appears to vary a little, possibly 

 according to sex. 



G. scttnicus {= humeraJis, Steph., 111. Mand., iii, p. 74) occurs 

 everywhere in rubbish, fungi, &c. It apparently has two forms, one 

 with the elytra dark with a reddish-brown base, and the other ferru- 



