58 



9. Trichius. 



Sp. 2-punctatus. — This insect is the type of Dr. 

 Leach's genus Popillia. — I am acquainted with 

 more than forty species belonging to it ; apparently 

 those of the New World will form a sub-genus. I 

 strongly recommend these beautiful insects to the 

 attention of Entomologists, as likely to form an 

 elegant and interesting Monograph. 



Sp. 8. Bidens. — In some writers it is called 

 Bibens, which is an error of the press. 



Sp. 16. Retusus. — This is the type of Mr. Kirby's 

 genus Cnemida. (vide Zool. Journal, No. 10, p. 145). 

 The Baron De Jean is probably unacquainted with 

 the other species described and figured in that 

 work by the above author, as mention is scarcely 

 made of them in his various Catalogues. 



Sp. 19- Hirtus. — Probably a Trichius ? A Mo- 

 nograph ought to contain a notice of all the described 

 species of authors up to the time of its publication. 

 The Monograph of Messrs. Percheron and Gory 

 however good in some points, is exceedingly defi- 

 cient in this respect. With regard to Synonyms 

 they occasionally mention the most common. The 

 omission of several Fabrician species renders their 

 work anything but perfect and satisfactory. It is 



