EASTERN UNITED STATES. 59 



Orange anal patch not pupilled with black, 



Papilio Palamedes, (5) 

 14. 



Antennae abruptly terminating in an ovoid club, 15 



Antennae truncated at the end and obconic, or terminating in- 

 sensibly in an obconic club, 22 



15. 



Abdomen shorter than the hind wings ; color white or very 



pale yellow, 16 



Abdomen as long as or longer than the hind wings ; color 

 lemon-yellow, black at apex, along hind margin of fore 

 wings and costa of hind wings, Nathalis lole, (15) 



16. 

 Under side of hind wings without marks, or marked along the 



veins, Pieris, 17 



Under side of hind wings covered with a greenish net-work, 



Anthocharis, 21 

 17. 



Fore wings with no black bar at the end of the cell, 18 



Fore wings with a black bar at the end of the cell, and more or 



less of a black border, Pieris Protodice, (11) 



18. 

 Under side of hind wings plain white, apex of fore wings 



black, Pieris Ilaire, (9) 



Under side of hind wings plain yellow, Pieris Rapae, (14) 



Under side of hind wings marked along the veins, 19 



19. 



Black border to both wings, Pieris Monuste, (10) 



No black border to the wings, 20 



20. 

 Under side of hind wings pale yellow, with brownish along 



the veins, Pieris Napi, aberr. Virginiensis, (12) 



Under side of hind wings white, with brownish along the veins, 



Pieris Virginiensis, (13) 

 21. 

 No orange at apex of fore wings, 



Anthocharis Olympia, (16) 

 A large orange apical patch, Anthocharis Genutia, (17) 



