86 Proceedings of tJie 



species have been very generally adopted, it will be right, I think, 

 to give a copy of their descriptions, so that the reader may have 

 before him the means of judging for himself. 



I shall therefore quote the descriptions of them given by 

 Kraatz, as being both the most recent and the most ample ; but, 

 in accordance with my own opinion, I shall rank thein here only 

 as varieties. 



Var. C. angustatus, Kraatz. 



Catops angustatus, Kraatz, Stett. Ent. Zeit. xiii. 401.3. 



" Oblongus, piceus; thorace minus dense et suhtiliter punctato , ante 

 medium latiore, angulis posticis obtusiusculis, marginibus et 

 angulis posticis dilutioribus ; elytris substriatis, rufo-ferru- 

 gineis, versus suturam postice interdum infuscatis. 



" Long. 2± lin. 



" Mas, trochanteribus posticis plerumque scalpiformibus. 

 " Fcem. ? elytris apice acuminatis. 



" The longest and narrowest species in this group. The an- 

 tennae are very slender, longer than the half of the body, always 

 entirely of a clear ferruginous colour. First joint somewhat 

 stronger and as long as the second ; third nearly twice as long as 

 the joints on each side of it (second and fourth) ; eighth only a 

 little shorter than the seventh and ninth, which are equal in 

 length ; the last joint longer than the preceding, long, cylindrical, 

 and acuminate. The head is blackish brown ; the parts of the 

 mouth ferruginous, abundantly and finely punctate. The thorax 

 is a little broader than long, gently rounded at the sides, broadest 

 before the middle, gradually narrowed towards the base, the pos- 

 terior angles more or less feebly obtuse-angled ; the basal mar- 

 gins are depressed for a moderate breadth, and somewhat bent 

 up, so that there is the commencement of a deepened line on each 

 side. The upper side is covered with a moderately dense golden- 

 yellow pubescence, and tolerably abundantly and finely punctured, 

 pitchy black, the outer edges and the posterior angles reddish brown, 

 with a more or less distinctly marked dorsal line, slightly im- 

 pressed on both sides near the base. The elytra are only very 

 feebly expanded, sometimes not wider than the base, pressed flat 

 at the suture, slightly striated, finely and densely punctate, with 

 a fine silken pubescence, ferruginous. The darker individuals 

 are somewhat darker towards the apex near the suture. The 

 legs are ferruginous red. 



" Note I. — A not unimportant sexual distinction in this and 

 the kindred species is afforded by the formation of the posterior 

 trochanters. I have already (Stett. Ent. Zeit. xii. p. 284 ff.) ex- 



