COBKESPONDENCE, 



DOUBLEDAY TO HARRIS. 



[No date; received May 22, 1839.] 



The descriptions in the Suites a Buft'on by Boisduval, arc in 

 general good, but I do not like his character of Marcellus and 

 Ajax, which are my two species. Cramer's figure evidently is 

 Marcellus. Children has only bad specimens, one of each, and 

 these both named by G. R. Gray, Ajax. Boisduval calls Dru- 

 ry's ProtesilauS) Sinon. Now Drury's figure is a species he has 

 not described, and is very correct, not incorrect, as Boisduval 

 asserts. Boisduval evidently never saw Drury's species, which 

 I have from Jamaica. Boisduval is right in considering your 

 Callidryas as distinct from the more Southern one. Of Antlw- 

 caris genutia, Newman has two males and a female from Ed- 

 wards County, Illinois, collected there some years since by W. 

 Clark. I notice that Boisduval says it is found near Boston, 

 and remarks truly that notwithstanding its falcated wings, it is 

 the nearest species known to Cardamines. 



You will remember I told you that I had a Terias, very dis- 

 tinct from any known to me, which I captured near Alton, 111. 

 This is not a Terias, but a Nathalis lole Boisd. Children has 

 it from the W. Indies. Boisduval says Mexique. I have but 



