1881.] 



OF AMURLAND, NORTH CHINA, AND JAPAN. 



863 



Arge. 1 species confined to Amurland and China. 

 Argynnis. Many species in Amurland, Japan, and China. 

 Melitcea. Several species in Amurland, 2 of which extend to 



Japan, but only 1 to China. 

 Erebia. Several species in Amurland, of which one extends to 



Japan, but none are known iu China. 

 Satyrtis. Only 1 species in Amurland and Japan. 

 Epinephele. 1 species only in Amurland and Japan. 

 Cceno7iyrnpha. 4 species, of which one or two extend to Japan 



and China. 

 Triphysa. 1, or perhaps 2, species in Amurland, and probably 



Japan. 

 CEneis. 4 species in Amurland and China. 



Genera common to and characteristic of the Himalayan subregion : — 

 A section of ThecJa represented by T. smaragdina. 4 species in 



Amurland and Japan. 

 Lethe. 5 or 6 species in Amurland, Japan, and China. 

 Neopet 2 or 3 species in Japan and China. 



With regard to the Hesperidte, I think it better to omit the genera 

 when considering questions of geographical distribution. Many of 

 of them are so obscure and apparently so much more cosmopolitan 

 than other families, that it is difficult to base sound ideas upon them. 

 Speaking generally, however, I may say that Ismene, represented 

 by three species in China, Japan, and Amurland, is of Indian affinity. 

 Nisoniades is represented by one species only, common to Amur- 

 land, China, and Japan, which comes closest to N. -American species. 



In the southern part of our limits the largest proportion of the 

 Hesperida) are tropical, whilst in Amurland they nearly resemble 

 European species or are of more or less peculiar forms. Generally 

 the family is well represented iu all parts of the region. 



Geographical Distribution of Butterflies in N.E. Asia. 



