166 STATES OF INSECTS. 



The above are the principal forms that appear to me 

 Primary (though some doubt may rest upon the ninth 

 and tenth) ; and probably others will hereafter be disco- 

 vered, since at present our knowledge of the larvae of 

 most of the Orders is very limited. And now having given 

 you this generalization of them, as far as they are known 

 to me, I shall next, in a slight survey of those of the dif- 

 ferent orders, lay before you what I have further to ob- 

 serve upon this subject. 



Coleoptera. The Anopluriform coleopterous larvse, ac- 

 cording to Mr. W. MacLeay's view of them, include 

 both those of Coccinella L., Chrysomela L., and Cas~ 

 sida L. ; but this appears to me to admit of further con- 

 sideration. With regard to the two former — those of 

 Coccinella are carnivorous, those of Chrysomela herbi- 

 vorous ; the first is also usually more flat and depressed. 

 As to the latter, Cassida a , it seems to me to belong to a 

 peculiar type, distinguished not only by its radiated mar- 

 gin, but by the remarkable deflected anal fork on which it 

 carries its excrement. At present I know no analogous 

 form amongst the apterous tribes ; I must therefore leave 

 this without a denomination. Perhaps the larva of Hispa 

 or Alurnns, when known, will throw light upon this sub- 

 ject. The larva of Endomychns agrees with that of Coc- 

 cinella. 



There are very few known larvae that approach to a true 

 Thysanuriform type in this order: that most celebrated is 

 the one supposed to belong to Meloe ; but the claim of this 

 to be so considered, is, as we have seen, rather dubious. 

 Should this point at last be satisfactorily ascertained, it 



1 Plate XVIII. Fig. % 



