NOTICE OF ENTOMOLOGICAL WORKS, 419 



3. Gymnelides. The new genera established are, Strepsi- 

 pher, Dlplognatha,\ Amp/iitoros, Dicheros, Ichnestoma, 

 Teh-agonos, and Lomaptera. We are glad to see that the 

 authors give the derivations of these genera, a custom but sel- 

 dom followed in this country. There is, besides, a diagnostic 

 table of the species, giving a short description (comprising 

 generally from one to two lines) of each species. We think 

 this an excellent plan, as it often enables collectors to identify 

 their species without wasting their time in wading through 

 several volumes. We observe, that the lately-commenced 

 practice of writing the names of persons to whom the species 

 are dedicated, in the nominative case, is followed here. "We 

 thus have species named Driimmond, Brou, Hardwick, Hope, 

 Germar, Brown, Cminingham, Desmarest, Dahnan, Swain- 

 son, Macqiiart, Children, Petit, Barthtlemy , King, &c. &c. 

 Of this we do not approve ; it is decidedly at variance with all 

 established laws of science. 



This number is accompanied with seven plates, uncoloured, 

 delineating all the genera, and the anatomy of Cetonia. 



9. The Nomenclature of British Insects, by James Francis 

 Stephens, F. L. and Z.S. Second Edition. — It is with much 

 pleasure we find there has been a sufficient sale of this work to 

 require the publication of a second edition. It is our duty 

 rather to point out in v.'hat particulars this impression differs 

 from the first than to notice it as an original work. The first 

 remarkable difference is the numbering of the genera and 

 species after Mr. Curtis's plan ; and this is of great importance; 

 but in our opinion the numbers ought to have corresponded 

 exactly with those of the author's Systematic Catalogue, and 

 new genera should have retained the number of the genus 

 which immediately preceded each, and a letter might have 

 been affixed to distinguish such genera. This is not an 

 imaginary evil ; for instance, we have often marked on little 

 round pieces of writing-paper the numbers of the genus and 

 species in Mr. Stephens's Systematic Catalogue, thus : S. 531. 1. 

 a number which may now either mean Euplecttis Kirbii or 

 Anax Imperator ; and, as we happen to have many insects 

 marked in this way, much inconvenience will result. The 

 second alteration is in the introduction of synonymes ; this is 

 a great improvement. The third alteration is the introduction 



