September, 1386.] 73 



My specimens are from the Caucasus. 



I do not feel at all certain as to this species, and am inclined to 

 believe that it is only a form of G. seviistriatum, which appears to be 

 very variable ; Herr Reitter, in his plate (Deutsche Ent. Zeit., 1876, 

 Tafel ii), gives two figures which he names C. cetolicum ^ and ? re- 

 spectively, but in his own copy of his paper, which he has kindly sent 

 me, he styles them seviistriatum (cetolicum. pars) and magnicolle 

 {cetolicum. pars), and he has since the date of his fii\st paper separated 

 this latter species. 



C. SEMiSTRiATUM, Perr. (attenuatum, Fairm., cetolicum, Reitter., 



? spissicorne, Fairm.). 

 Tliis species differs very sliglitly from the preceding; the thorax, however, is a 

 little more distinctly punctured, and the general form is more oval, tlie elytra not 

 being dilated at anterior third : the species much resembles C. histeroides, but is 

 more convex and finely punctured, and more narrowed in front ; the strite also of 

 elytra are finer, and the relative proportions in the length of the second and third 

 joints of the antennae is different ; the colour also is ferruginous. Long., 2 mm. 



Under oak-bark. South of France, &c. 



V. conicicolle, Reitter. — This variety is smaller than the type form, and has the 



thorax more contracted in front ; the general form is somewhat more oval and convex. 



Reitter considers this to be a separate species, and it is very possible he may be right. 



Long., If mm. 



Caucasus Mountains. 



C. EVANESCENS, Reitter. 

 This species is easily distinguished from the two preceding by its more oblong 

 form, more strongly punctured thorax, and deep and strongly impressed and 

 punctured striae of elytra, which become evanescent towards apex, with the excep- 

 tion of the sutural stria which is deeper at apex ; the thorax is broader than long 

 with the sides almost parallel, and the anterior margin deeply sinuatc-emarginate, so 

 that the anterior angles are pronounced and prominent ; from all the following species 

 it may be distinguished by the second joint of the antennae being much longer than 

 third. 



Under beech-bark. Transylvania, Croatia , &c. 



C. HISTEROIDES, F. 

 Dark pitchy-black (ferruginous or reddish-ferruginous in immature examples), 

 not very convex, with the antennae and legs ferruginous ; thorax thickly and rather 

 strongly punctured, in the male a little shorter than broad, and a little widened and 

 rounded in front, so that its greatest breadth is before middle : in the female it is 

 just as long as broad, very slightly and almost imperceptibly narrowed in front, so 

 that it is broadest at base : elytra slightly dilated and widened at sides, rather 

 depressed, with distinct striae, which are plainly punctured, and usually become ob- 

 solete near apex ; interstices flat, finely punctured in more or less irregular rows, legs 

 reddish or pitchy-red. Long., 2-2^ mm. 



G 



