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Notes en Japanese Rhopaloceha, /vith (h'scrtptions of new 

 species ; hy Olivkr E. Janson. 



The species here described or recorded as Japanese are chiefly 

 from a very fine and extensive collection made by F. M. Jonas, 

 Esq., during four years sojourn in the Island of Niphon ; the 

 first set, including the uniques, is now in the possession of 

 Messrs. Salvin and Godman ; the Heterocerous portion of the 

 collection will probably soon occupy Mr. Butler's attention. 



Erebia niphonica, n. sp. 



Above dark brown, body and base of wings blackish ; pri- 

 maries with a large ochreous j^atch beyond the middle extending 

 from the .sub-costal nervure almost to the inner margin, sub- 

 ovate, slightly narrowed in the middle and dentate externally. 

 containing a double black spot in fi'ont, and a smaller round one 

 behind ; secondaries A\ath an ill defined reddish-brown transverse 

 band beyond the middle, containing three small round black 

 spots near its outer edge, the one nearest the anal angle with 

 a white pupil ; beneath brown, primaries marked as above ; 

 secondaries with the band slightly indicated by dusky brown, 

 the white pupil alone distinct. In the female the black spots 

 on both wings have conspicuous white pupils above and below, 

 the spots on the upper side of secondaries are only partly sur- 

 rounded with reddish-ochreous in place of the band in the male, 

 beneath they have a large dusky white basal patch and a 

 conspicuous silvery white sinuous band. Expanse of wings 1 

 inch 10 lines. 



This interesting species (the first of the genus discoA^ered in 

 Japan) was taken l3y Mr. Jonas on Assamayama, at an elevation 

 of about 7,000 feet, and to whose liberality I am indebted for 

 the specimens described above, it apj tears to me to be most 

 nearly allied to E. stygne, Fisch, Ent. Russ. i, t. 1, f. 2. 



