Royal Physical Society. Ill 



According to M. Kellner's description this species is distin- 

 guished by its long and slender form, and thereby easily sepa- 

 rated from the remaining varieties or species in this division. 



The antennas are of the length of the head and thorax, mode- 

 rately strong, black in the middle, the basal joints reddish, the 

 terminal joint yellowish, the club a little thickened ; the head and 

 thorax are densely punctate, clothed with yello wish -grey hairs ; 

 the latter is gently rounded on the sides, narrowed in front and 

 behind ; the posterior margin is cut straight, and only slightly 

 sinuated on each side of the scutellum. The elytra are long and 

 uniform in their shape, densely and finely punctate, indistinctly 

 striated, lightly covered with yellowish-grey hairs and hoar- 

 frosted. The legs are black- brown, the feet brownish red. 



M. Kellner states that he found this kind on high hills near 

 the mountains (of Thuringia) " under moss and on exposed dead 

 birds : very rare." 



The only discrepancy which the above description shows be- 

 tween this variety and tristis is that the club is but little thick- 

 ened, and that the elytra are long and uniform in their shape. 

 The degree of thickness of the club of the antennae varies in all 

 the thick-clubbed species (of course within certain bounds) ; and 

 the circumstance of its being found under dead birds. sufficiently 

 shows that this is one of the thick-clubbed species. Moreover, 

 owing to the kindness of M. Kraatz 5 I have seen authentic ex- 

 amples of it, and am thus enabled to say that the antennas are 

 not of less thickness than they are in many other specimens of 

 C. tristis. The length of the elytra, which is in point of fact the 

 characteristic mark of this variety, is of no value as a character, 

 scarcely any two examples of tristis having the elytra of the same 

 proportions. In some they are more bellied out than in others, 

 which makes them look not so long, and others are longer in 

 point of fact, but they all have the same character which cannot 

 well be mistaken, and this supposed species is only a variety 

 with disproportionately elongate elytra. 



I have found this variety in Scotland and England. 



Var. C. C. montivagus, Heer, Faun. Col. Helv. i. 381. 



"Oblongo-ovatus, niger; antennis basi, tibiis tarsisque rufo- 

 testaceis, pronoto subtransverso, basi apiceque latitudine sub- 

 sequali, angulis posticis rectis, acutis; elytris obsoletissime 

 striatis ; antennis abrupte clavatis, articulo ultimo penultimo 

 vix longiore. 



" Long. If lin. 



" Very similar to C. tristis; chiefly to be distinguished by its 



