21 



Cassida, Linneus. 



The beetles belonging to this genus are usually 

 called Shield or Tortoise Beetles ; they are exceed- 

 ingly numerous, and appear to have attracted little 

 attention compared with other groups, although the 

 singularity of form, both of the larvae and perfect 

 insects, are well worthy of investigation. They 

 are herbivorous in their habits. Some of the species 

 are diaphanous ; others again are ornamented with 

 various colors, spots, fasciae, &c Many of them 

 while alive, are enriched with gold and silver mark- 

 ings, which disappear when dead ; these tints may 

 be partially restored by immersing them in scalding 

 water. 



Sp. 9. Cruciaia.— Now of the genus Aspidomor- 

 pha, Hope ; the characters of the new genera created 

 at the expence of the original Cassida, will be 

 found more fully treated of among the Fabrician 

 Cassidoidea. 



Sp. 10. Bifasciata. — I have little doubt that this 

 species is a Thyreaspis, one of the new genera 

 I have given the characters of: Vid. further re- 

 marks on the Fabrician Cassidae. 



Sp. 17. Grossa.— This is the largest species of 

 Cassida known. I separate it from others under 

 the name of Calaspis, from Ka\o? and Amis. The 

 details will be found under the Fabrician Cassididae. 



Sp. 19. 7-guttata. — No notice of this species is 

 to be found in Schonherr's Synonymia Insectorum, 



