8 NOTES UPON THE GENERA SITONA, &:C. 



some of which I have lodged in the cabinets of the Entomo- 

 logical Society and Entomological Club, for the inspection of 

 visitors. 



P. minutus, is a variety of P. parvulus. 



P. viridicollis, said to be a good species. I have never 



taken it. 



Genus. — Apion. 



The excellent Monograph of Mr. Kirby on Herbst's genus 

 Apion, published in the ninth and tenth volumes of the Lin- 

 naean Transactions, is of inestimable value to entomologists ; it 

 evinces great labour and deep research His valuable corre- 

 spondence with his friend Major Gyllenhal, with presents of 

 insects, enabled him to identify numerous species, to correct 

 the synonymy, and to render the same in many cases less ob- 

 scure. Notwithstanding his great exertions, I cannot help think- 

 ing the genus is yet in a very unsatisfactory state ; on the whole, 

 this celebrated work of Mr. Kirby is as complete, and as free 

 from errors (considering the state of our knowledge at the 

 time, and the scantiness of some of the materials which he had 

 to work upon,) as could be expected ; my surprise is, that the 

 errors are so few when I consider the difficult nature of the 

 subject, and many other unavoidable circumstances. I cannot 

 resist my inclination to avail myself of this opportunity, here to 

 record my individual sense of the generosity and kindness evinced 

 by Mr. Kirby, in presenting the whole of his invaluable collection 

 of insects to the Entomological Society : it is a proof how deeply 

 he feels for the prosperity and advancement of his favourite 

 science. 1 congratulate the entomologists of London upon so 

 valuable an acquisition, upon the advantages they possess in 

 having free access to the cabinets ; without this I could not 

 with any degree of satisfaction to my own mind, much less to 

 that of others, have attempted to point out the iew inaccuracies 

 that comparatively exist in his valuable and interesting mono- 

 graph. Ample means were afforded me, carefully and I hope 

 rigorously, to examine the identical insects described by Mr. 

 Kirby : for want of this evidence I must have remained silent, 

 and yielded to the high authority of so celebrated an author. 

 Through the politeness and kind attention of the curators of 

 the Entomological Society, I have been permitted to remove 

 this genus, and the preceding genera, into two separate drawers, 

 to place Mr. Kirby 's names under each species, and to attach 



