Onjptophagus.'] CLAVICORNIA. 317 



deeply and rather strongly punctured, with the punctures disposed in 

 lines, especially near suture ; the punctuation of head and thorax is 

 rather coarse; legs pale ferruginous or reddish-testaceous. L. 2-2|- 

 mm. 



Rare; Strood, in black fungus growing on old ash-trees ( Champion); Cobham 

 Park ; Chertsey, under bark ( Blatch) ; Chat Moss, in fungus on birch trees (Chappell) ; 

 Ockbrook, near Derby, in fungus on ash trees (Gorham) ; Mount Edgecumbe, Devon 

 (Wollaston); Stretford, near Manchester, flying (A. Reston). 



From C. scanicus this species may easily he distinguished by its nar- 

 rower form, stronger punctuation, and less transverse and more parallel- 

 sided thorax, the anterior angles of which are more plainly denticulate. 



SECTION II. 



This section, as here constituted, comprises the single species C. po- 

 puli, which is by some authorities classed with the species contained in 

 Section III., by others with those contained in Section IV., whereas 

 others apparently consider it to be related to C. lycoperdi and its allies ; 

 the best plan therefore appears to be to place it under a separate section ; 

 it is exceedingly variable both as regards size and colour ; the larger and 

 darker specimens are very distinct, but some of the smaller and lighter 

 specimens are very apt to be mistaken for other species. 



C. populi, Payk. Rather elongate and parallel-sided, somewhat 

 depressed, ferruginous or pitchy-red, with the elytra sometimes almost 

 black on disc, clothed with rather thick and distinct yellow pubescence ; 

 thorax moderately transverse, with the anterior angles strongly reflexed, 

 somewhat cup-shaped, more or less distinctly denticulate behind, sides 

 nearly parallel to about middle, where they are produced in a distinct 

 tooth, and thence plainly narrowed to apex, disc with callosities small 

 but evident, basal depression plain with a more or less obsolete fold 

 before scutellum ; the head and thorax are rather strongly punctured, 

 and the antennae are somewhat short and stout with a narrow club ; 

 elytra moderately strongly punctured at base, the punctuation becoming 

 obsolete towards apex, in typical specimens dark with the base and 

 lateral margins lighter ; legs ferruginous or reddish-testaceous ; size very 

 variable. L. 2i-3 mm. 



Male with the tibiae dilated, the posterior tibiae curved, and the 

 anterior tarsi dilated. 



In hard fungus on trees, in rotten wood, by sweeping, &c. ; also in and about the 

 burrows of bees' nests, especially of Colletes Daviesiana; local and usually rare, and 

 apparently confined to the London and South-eastern districts ; Micklehiim, Eipley, 

 Esher, Sydenham, Farnham ; Margate ; Stephens records it from Norwich ; in the 

 Ent. Monthly Mag. vol. xii. p. 107, Mr. Champion records the capture of this 

 species in abundance at Farnham, in and about the burrows of Colletes Daviesiana. 



The lighter form of this species with the elytra entirely ferruginous 



