1887.] OF JAPAN AND COREA. 407 



14. Aporia CRAT^Gi, Liun, 



Specimens from Hakodate do not seem to differ in any way from 

 European examples. 



15. PiERis RAP^, Linn. 



P. crucivora, Boisd. Sp. Gren. i. p. 522 (1836). 



Var. orientalis, Oberth. Et. Ent. v. p. 13 (1880). 



Ganoris crucivora, Butl. Ann. & Mag. Nat, Hist. ser. 5, ix. p. 18. 



Very common in Japan, Corea, and N. China, especially fre- 

 quenting market-gardens. It has nothing whatever in common with 

 P. brassica, which I believe does not occur in Eastern Asia, but is 

 a good local form of rapce, in which the base and all of the fore 

 wing of the female is much suffused with greyish-brown scales, and 

 the second spot of the fore wing of the male shows through the 

 upper surface, as is usual in the typical female. This latter, however, 

 is not a constant character, many males occurring in no way dif- 

 ferent to the common form, and I took several specimens without 

 any black spots on the fore wing. It is very variable in size. Mr. 

 H. Pryer informs me that the larvse, which feed on the cultivated 

 Cruciferse, do not differ from the ty{)ical forms, nor does the pupa. 



16. PiERis NAPi, Linn. 



P. melete. Men. Cat. Mus. Petr. ii. p. 113, t. x. figs. 1, 2 (1855). 



P. aglaope, Motsch. Et. Ent. 1860, p. 28. 



P. megamera, Butl. Cist, Ent. i, p. 173 (1873). 



P. castoria, Reak. Proc. Ac. Nat. Sci. Phil. 1866, p. 238. 



Ganoris dulcinea, Butl. Ann. & Mag. Nat. Hist. ser. 4, xix. p. 96. 



Common all over Japan and Corea, and extremely variable. It 

 is difficult to get two specimens exactly alike. In Central and Nor- 

 thern Japan' napi seems to be the spring form, and there are spe- 

 cimens in Mr. Fenton's collection in no way separable from British 

 examples, and I have all the intermediate forms between napi and 

 melete in my own collection. In Southern Japan the larger and 

 darker forms predominate, and there is less difference between the 

 broods. In Central Japan I took specimens identical with ajaka, 

 Moore, and at Nemoro, a very bleak place in N.E. Yesso, I found 

 forms varying from small melete to typical '•'castoria.'" 



In no single locality, so far as my experience goes, is any one form 

 constant. 



17. PiERis CANiDiA, Sparrm. 



P. gliciria, Cram. Pap. Exot. ii. t. 171. 



P. claripennis, Butl. Ann. & Mag. Nat. Hist. ser. 4, xix. p. 96. 



P. sordida, Butl. 



The black spots on the fore wing of this species vary as much as 

 in P. rapcB, var. crucivora d . I took a very large series in Hong- 

 Kong, Foochau, Ningpo, and Gensan, and they varied equally in 

 every locality. The Corean specimens are usually smaller than 

 Chinese examples. 



