154 Mr. A. Murray's Monograph of the genus Catops. 



tristis and grandicollis (both of which are exactly the same), fig. 15 : 

 the punctures from which the hairs issue are only a little larger 

 and deeper in the former than in the latter, which also shows 

 the first faint traces of the circular depressions between these 

 punctures in the former. In neglectus however, although there 

 are deep circular depressions, these are on a totally different 

 arrangement from those in the other species. Here they sur- 

 round the puncture from which the hairs spring, while in rotun- 

 dicollis they are placed between the hairs. In neglectus the con- 

 cave curve of the depression is turned towards the hair, in rotun- 

 dicollis it is the convex curve which is turned to it. 



Although the character is narrow, I incline to think that 

 this is a good species, more especially as M. Kraatz mentions 

 that nothing approaching to a transition between it and rotun- 

 dicollis has been found. 



This interesting species was taken by M. Kraatz in Hessia, 

 but I have not yet observed it in any collection made in this 

 country. 



16. C. quadraticollis, Aube. 



Catops quadraticollis, Aube, Ann. de la Soc. Ent. de Fr. 1850, viii. 326, 

 35. 1. 11. f. 3; Fairm. & Laboulb. Fn. Ent. Fr. i. 302. 



Oblongo-ovalis, convexiusculus, niger; anten- Fig. 21. 



narum articulis primis et ultimo, tibiisque 

 » ferrugineis ; thorace quadrato, vix postice an- 



gustiore, angulis posticis rectis. 

 Long. If lin. 



Oblong-oval, convex. Brownish black, co- 

 vered with a sparing yellowish- grey pubescence ; 

 mouth and base of the antennae obscure ferru- 

 ginous. Antennse gradually clavate, a little 

 longer than the head and thorax. Thorax almost as broad 

 as long ; sides feebly arched, almost straight, except in front, 

 where they are pretty strongly rounded ; posterior angles right- 

 angled, a little sharply pointed ; very finely and densely punc- 

 tate. Elytra with a more marked punctuation, very dense ; 

 sutural stria deep, disappearing on the anterior third. With a 

 strong lens some traces of strise are perceptible. Thighs brown- 

 ish black, tibise and tarsi obscure ferruginous. 



This species is almost of the size of tristis, which it comes very 

 near in form and colour. It is however a little more elongated 

 and generally deeper in colour, and the antennae are less clavate ; 

 but the principal difference is in the form of the thorax, which 

 is nearly as long as broad and rectilinear on the sides, in fact 

 nearly square ; the posterior angles also are straighter. Dr. Aube 



