156 Mr. J. H. Leech m 



some examples of tlie latter sex the primaries are without 

 any spots whatever. 



Distribution. Amurland; Eastern Siberia; Japan; 

 Yesso ; Central and Western China. 



508. Rhyparioides ncbulosa. 



Rhy2')arioides nchUosa, Butl., Ann. and Mag. Nat. Hist., 



(4) XX, p. 39G (1877) ; 111. Typ. Lep. Het., ii, p. 5, pi. 



xxiii, fig. 2 (1878). 

 Rhyparioides simplicior, Butl., Trans. Ent. Soc. Lond., 



1881, p. G. 

 Rhyparioides rnhcscens (part), Leech, Proc. Zool. Soc. Lond., 



1888, p. 616. 



There were specimens from Yokohama, Oiwake, and 

 Yesso in Fryer's collection ; I have also received one 

 example from Hakodate, and I obtained two males at 

 Hakone in August. 



The males {simp)licior) are always much less suffused 

 than the females (nehdosa). 



In a former paper I treated amurensis, ncbulosa, and 

 simplicior as forms of riibesccns, Walk., but I now find that 

 the first three have nothing to do with the last named 

 species; I have also been able to discover good differences 

 between amurensis, Brem., and nehdosa, Butl., the most 

 important of which is connected with the antennae ; these 

 are pectinated in amurensis, but serrated in nehdosa. 



Hahitat. Japan and Yesso. 



Genus DiACRislA. 

 Hubner, Verz. bek. Schmett., p. 169 (1822 ?). 



509. Diacrisia russida. 



Bomhjx sannia, Linn., Syst. Nat., i, p. 506 $ (1758). 

 Bombyx russida, Linn., Syst. Nat., i, p. 510 ^; Hlibn., 



Bomb., pi. xxix, figs. 124, 125. 

 Diacrisia sannio, Kirby, Cat. Lep. Het., i, p. 249 (1892). 

 Nemeophila rnssula, Alph., Rom. sur Lep., vi, p. 13 (1892). 

 Diacrisia russtda, var. amuri, Stand., Rom. sur Lep., vi, 



p. 277 (1892). 



There were examples of both sexes from Oiwake in 



