64 mr. a. g. butler on the genus pieris. [jan. 16, 



16. Synchloe frigida. 



Pieris frigida, Scudder, Proc. Bost. Nat. Llist. Soc. viii. p. 181 

 (1861). 



Pieris oleracea (part), Boisduval, Sp. Gen. Lep. i. p. 518. n. 117 

 (18.'36). 



Labrador. 



17. Synchloe venosa. 



Pieris venosa, Scudder, Proc. Bost. Nat, Hist. Soc. viii. p. 182 

 (1861). 



Pieris nasturtii, Boisduval, Lep. Cal. p. 38. n. 7 (1869). 

 Cali torn ia. 



18. Synchloe marginalis. 



Pieris marginalis, Scudder, Proc. Bost. Nat. Hist. Soc. viii. 

 p. 183 (1861). 

 California. 



19. Synchloe pallida. 



Pieris pallida, Scudder, Proc. Bost. Nat. Hist. Soc. viii. p. 183 

 (1861). 



Pieris yreka, Reakirt, Proc. Acad. Nat. Sci. Philad. p. 238. n. 1 

 (1866). 



Pieris iberidis, Boisduval, Lep. Cal. p. 39. n. 9 (1869). 



California. 



20. Synchloe occidentalis. 



Pieris occidentalis, Reakirt, Proc. Ent. Soc. Philad. vi. p. 133 

 (1866). 

 Colorado. 



21. Synchloe vernalis. 



Pieris vernalis, Edwards, Proc. Ent. Soc. Philad. ii. p. 105 

 (1864). 



New Jersey. 



22. Synchloe melete. 



Pieris melete, Mene'tries, Cat. Mus. Petr. Lep. ii. p. 113, pi. 10. 

 figs. 1, 2 (1857). 



Japan. ' B.M. 



23. Sycnhloe brassicoides. 



Pieris brassicoides, Guerin, Lef. Voy. Abyss, vi. p. 365, pi. 9. 

 figs. 3-6 (1849). 



Abyssinia. B.M. 



We received this under the name of P. hafta ; but I cannot 

 discover that it has been anywhere described under this name. 



