130 COLEOPTERA. 



have employed certain conventional groups (according to that 

 arrangement, often absohitely incorrect) not used by that 

 gentleman. The species, therefore, that are marked * will 

 not be found under their recorded names in (and in many 

 cases are purposely excluded altogether from) that Catalogue; 

 but to nearly all of such, remarks have been added, suffi- 

 ciently explaining their rejection. 



It will be observed, that 1297 species are enumerated as 

 recorded from 1840 to the present time; from which number 

 198 must be deducted, as not now recognized, leaving a net 

 total of 1099. T observe in the " Annual" for 1855, that 

 330 species are considered as having been discovered during 

 the then preceding 15 years, at the rate of 22 per annum; 

 and also that a corresponding increase for the then following 

 15 years is prognosticated. But 100 of the 330 are reckoned, 

 though stated not to have been then recorded; and it seems 

 to me that only the 227 species enumerated in that " Annual" 

 can properly be taken into account; and from them 64 must 

 be deducted, as not now recognized, or as before recorded 

 under other names. This leaves 163 species, being a little less 

 than 11 for every one of the 15 preceding years. Deducting, 

 again, these 163 good species from the 1099 above mentioned, 

 there remain 936 to represent the 17 succeeding " Annuals" 

 (inclusive of the present) ; and this gives an average of rather 

 more than 55 per year! — showing how much more than jus- 

 tified wei'e the anticipations of 1855. 



The new genera brought forward during the whole of this 

 period are 64 in number. 



