Royal Physical Society. 93 



The most robust species in this group. Head, thorax and 

 under-side in the fully-coloured individuals pitchy black, the 

 elytra fine chestnut-brown. The examples not fully coloured are 

 dirty yellowish brown. The antennas are tolerably long, scarcely 

 half as long as the body, reddish brown, in the normal state the 

 last five joints darker; the first somewhat stronger, third some- 

 what longer than the adjoining joints ; second, fourth and fifth of 

 equal length ; sixth somewhat shorter than the fifth, and as long 

 as the seventh and ninth; eighth somewhat shorter than the 

 tenth ; tenth somewhat shorter than the ninth ; the last joint is 

 somewhat shorter than the foregoing, strongly acuminate. The 

 head is pitchy black, the parts of the mouth ferruginous red ; 

 the top of the head finely and sparingly, the front more deeply 

 and strongly punctured. The thorax is distinctly narrower 

 than the elytra, a little arched, somewhat broader than long ; the 

 sides rounded, and somewhat more so in front than behind, 

 so that the greatest breadth of the thorax is rather before the 

 middle; the posterior angles are obtuse and rounded off, the 

 basal margin straight-truncate ; the margin in the posterior half 

 is broadly expanded and a little bent up, so that a somewhat 

 bent and deep line arises on each side, particularly when seen 

 from above. The upper side is strongly and deeply punctate*, mo- 

 derately densely covered with a golden-yellow pubescence, with 

 a distinctly impressed line along the middle, about one-third of 

 the thorax in length. The scutellum is triangular, punctate, 

 brown. The elytra are moderately arched, chestnut-brown, and 

 a little darker towards the apex; immediately behind the shoulders 

 and a little further back somewhat bellied out, but not so that 

 the greatest breadth lies before the middle. The strise are mode- 

 rately shallow, but very distinct, and their punctuation is pro- 

 portionately strong and somewhat wrinkled. The pubescence on 

 the elytra is long, and not so close or adpressed as in the allied spe- 

 cies. The legs are ferruginous brown. 



Kraatz records the male as having chisel-formed posterior tro- 

 chanters, but in strongly developed specimens there might easily 

 occur gouge-formed trochanters. Sturm only knew the female. 

 I have also only seen the female. 



This species is to be distinguished from the preceding by its 

 more robust form, deeper punctuation, more bellied elytra, and 

 by the longer pubescence on the elytra. For a considerable time 

 I was disposed to look upon it as merely another variety of 

 C. angustatus, ¥., but I am now satisfied that it may justly take 



* Sturm says, " tinely and densely" punctate, but Kraatz properly cor- 

 rects this ; the deep coarse punctuation being one of the most characteristic 

 features of the species. 



