1881.] OF AMURLAND, NORTH CHINA, AND JAPAN. 915 



Raddefskala by Cluistoph. It is easily distinguished by two silver 

 longitudinal bands on the underside of the hind wing. 



Carterocephalus unicolor, Br. & Grey, Schmett. nordl. 

 China, p. 10; Men. Cat. Mus. Petr. t. v. fig. (i. 



This species, found at Pekiu, differs from the last in the pale 

 ochreous colour of the underside of the hind wings, on which the 

 silver bands are absent. I have seen several specimens from Japan 

 which appear to me to agree very well with this species, though 

 there is some indication of the silver stripes. They come nearer to 

 C. unicolor than to C. ornatus. 



Pyrgus inachus. Men. Schrenk's Reise, p. 46. t. iv. fig. 2. 



Rare in Amurland, whence I have only seen two or three spe- 

 cimens in Dr. Staudinger's collection. Specimens from Japan col- 

 lected by Jonas agree with it ; but two from Shanghai in Pryer's 

 collection differ in the size, shape, and markings. They are not, 

 however, fresh enough to describe. 



P. gigas, Brem. Lep. Ost-Sib., Nachtrag, p. 96, t. viii. fig. 3. 



Of this species, the largest of all the Palsearctic species, I have 

 seen specimens from Askold and Vladivostock. Dr. Staudinger 

 thinks it may possibly be a variety of P. tesseUum ; but it is much 

 larger and darker, and seems sufficiently distinct. 



P. sPEYERi, Stdgr. MSS. 



This species, found at Baranofsky by Dorries, belongs to the 

 group of P. aheus. Dr. Staudinger thinks it may be a variety of 

 it, near P . fritillum, Hb. 



P. CRiBELLTJM, Ev. Bull. Mosc. 1841, p. 25. 



Specimens in the Hewitson collection from Amurland, and in 

 Dr. Staudinger's collection, vary very slightly from the European 

 form. 



P. alveus, Hb. t. 401-3. 



One specimen from Blagovefschcnsk in Dr. Staudinger's collection 

 is considered by him to be the same as P. alveus. 



P. sERRATULiE, Ramb. Fn. And. t. viii. fig. 9. 



Found at Bureija by Radde \ and one specimen from Amurland 

 is in Dr. Staudinger's collection. 



P. malV.-e, Linn. Syst. Nat, x. p. 485. 



Found at Bureija by Radde ; and two specimens are in Dr. Stau- 

 dinger's collection from Schilka. 



P. ORBIFER, Hb. t. 803-6. 



Bremer says it was taken at Bureija by Radde ; but Dr. Stau- 

 dinger has seen no specimens from Amurland. 



59* 



