ENTOMOLOGY. 



P. Lysimnia, it should be observed that the females are usually larger 

 than the males throughout this tribe, but that their colours are in 

 general less vivid, which is not observable in the supposed female of 

 the species now before us : it may possibly be another species, at the 

 same time that it must be confessed the affinity between the two 

 is so very approximate that we shall not venture to separate them. 

 There is evidently in nature a family of this division of the Heli- 

 conii, in which there are at least twenty analogous species, that differ 

 from each other only in certain slight particulars ; some of those are 

 assuredly varieties only, while others possess characters that prove 

 them to be specifically distinct. Thus, the insect in the middle of 

 our plate may be readily mistaken for Papilio Honoria of Cramer, 

 (P. Mopsa, of Linnaeus), they accord in size and general appearance, 

 yet there is a difference, and such, as when attentively examined, can 

 be considered only as specifical distinctions. There is one character, 

 in particular, that claims especial notice, namely, the form and dis- 

 position of the black lines and spaces on the lower wings, the appear- 

 ance of which is very remarkable. It is from the figure and disposition 

 of the black spaces on the disk of the lower wings that several of the 

 approximating* species may be best distinguished. 



