Heterocera from China, JaiJan, and Gorca. 551 



1261. Polydcsma vircns. 



Pandes7na virens, Butl., Trans. Ent. Soc. Lond, 1881, p. 192. 

 Moma {Pandesma) virens, StauJ., Rom. sur Lep., vi, p. 401, 



pi. vii, fig. 1 (1892). 

 Moma japyx, Stand., 1. c, p. 402. 



There were specimens from Yesso in Fryer's collection, 

 I have also examples from Hakodate and one from Mr. 

 Manley of Yokohama. Butler's type was from Tokio. 



Staudinger gives a very recognisable figure of virens, 

 Butl. ( = japyx, Stand.), and suggests that it may be Mots- 

 chulsky's " Hahrostola " niveola (Bull. Soc. Nat. Mosc, 

 xxxix, 1, p. 195), but adds that it is not possible from the 

 description of the latter to identify it with certainty. He 

 goes on to remark that in my former paper (Proc. Zool. 

 Soc. Lond., 1889, p. 480) I introduced this species (i.e. 

 virens, Butl.) twice over, but I may observe that the 

 specimen referred to by me as " Moma " niveola, Motsch., 

 in the paper quoted, bears a label in the Doctor's writing- 

 indicating that he had identified it as his Moma japyx, and 

 also as probably the " H." niveola of Motschulsky. The 

 specimen in question is, however, perfectly distinct from 

 either the type of virens, Butl, or Staudinger's figure of 

 the species, and I have therefore described it as D. 

 staudingeri. 



Distrilndion. Japan ; Yesso ; Amurland. 



1262. Polydesma staudingeri, sp. n. 



Primaries pale bluish-green, traversed by a niiiuber of conspic- 

 uous black, wavy and dentate lines ; a blackisli-brown patch on costa 

 towards the base, a larger brownish patch on apical area with a 

 smaller one below it at outer angle ; reniform and orbicular 

 stigmata white, outlined in black. Secondaries pale fuscous with 

 two transverse central lines and a broad, diffuse, subniarginal band, 

 darker. Under surface of primaries dark fuscous bordered with paler 

 on the inner margin and marked on tlie costa towards apex with two 

 whitish spots : secondaries whitish with dark brown discal maik, 

 two transverse lines, and some clouds on outer margin. 



Expanse 42 millim. 



One female specimen from Gensan taken in July. 

 Habitat. COREA, 



This species, which may possibly be the " Ahrostola " 

 niveola of Motschulsky, is at once separable from D. virens 



