Royal Physical Society. lai 



the aberrant forms which occur, and an occasional separation 

 of nearly allied species must be submitted to, for the sake of the 

 greater facility of determination afforded by artificial divisions. 



The above description is taken from a single female spe- 

 cimen which I found in M. Chevrolat's collection, and which, 

 although unique, he has kindly ceded to me. It stood among his 

 European species, but the exact locality was not mentioned. 



31. C. umbrinus, Erichs. 

 Catops umbrinus, Erichs. Kaf. d. M. Brand, i. 235. 4 ; Redt. Fn. Aust. 771 ; 

 Kraatz, Stett. Ent. Zeit. xiii. 407- 7 ; Fairm. & Laboulb. i. 303. 15. 



Ovatus, brunneus ; antennis subfiliformibus ; tho- Fig. 33. 



race transverso, postice latiore, angulis posticis 



elongatis, acutis ; elytris substriatis. 

 Long. If lin. 



Short oval, brown. Antennae scarcely thickened 

 at the extremity, ferruginous, lighter at the base, 

 clear yellow at the apex. Head almost black; 

 mouth reddish. Thorax densely and finely punc- 

 tate, broadest behind, posterior margin sinuate, and the pos- 

 terior angles pointed, projecting, embracing the base of the 

 elytra. Elytra very slightly widened in the middle, obtusely 

 rounded at the apex, finely and densely punctate with indistinct 

 striae, scarcely more visible behind. Legs reddish. Middle 

 tarsi of males widened. 



The completely oval shape of this species, the outline of the 

 thorax fitting exactly to the elytra, distinguishes it from all but a 

 few. Its slender antennae distinguish it from those in the pre- 

 ceding section of this subdivision. It is the largest species of 

 this section, and comes nearest to C. velox. Its larger size, 

 darker colour, the posterior angles of the thorax more projected 

 behind, and the middle tarsi widened in the males, distinguish 

 it from that species. 



Widely distributed over the Continent, but I am not aware 

 of its having been taken in Britain*. It has been taken near 

 Stettin, Berlin, in Austria, near Kiew, Paris, Fontainebleau, 

 &c, on trees and under leaves. 



32. C. velox, Spence. 



Choleva velox, Spence, Linn. Trans, xi. 154. 13. 



Catops velox, Erichs. Kaf. d. M. Brand, i. 241. 14 ; Sturm, Deutschl. Faun. 



xiv. 3. 5. 17. t. 277. f. b. B ; Heer, Fn. Helv. i. 383. 17; Redt. Fn. 



Aust. 144. 15; Kraatz, Stett. Ent. Zeit. xiii. 437. 25; Fairm. & 



Laboulb. Fn. Ent. Fr. i. 304. 18. 



* I recorded this in my ' Catalogue of Scottish Coleoptera ' as having 

 been taken by Mr. Morris Young near Paisley, but I am now satisfied that 

 this was a mistake. 



