314 Mr. J. H. Leech on 
Genus PLATYCHASMA. 
Butl., Trans. Ent. Soc. Lond., 1881, p. 596. 
146. Platychasma virgo. 
Platychasma virgo, Butl, Trans. Ent. Soc. Lond., 1881, 
p. 596. 
I obtained a specimen at Gensan in July; there were 
three examples from Nikko in Pryer’s collection, and I 
have received one from Mr. Manley of Yokohama. 
Distribution. JAPAN ; COREA. 
Genus PTEROSTOMA. 
Germ., Prodr., ii, p. 42 (1812). 
Ptilodontis, Steph., Ill. Brit. Ent., Haust., 11, p. 28 (1828). 
147. Pterostoma griseum. 
Ptilodontis grisea, Brem., Lep. Ost. Sib., p. 45, pl. v, fig. 2 
(1864). 
Pterostoma griseum, Kirby, Cat. Lep. Het., 1, 00 1O02): 
Pterostoma grisea, var. brunnea, Graeser, Berl, ent. Zeitschr., 
1888, p. 145. 
One male specimen from the Wa-ssu-Kow taken in 
July. 
Distribution. AMURLAND ; WESTERN CHINA. 
148. Pterostoma sinicwm. 
Pterostoma sinica, Moore, Ann. and Mag. Nat. Hist., (4) 
xx, p. 91 (S77). 
Pterostoma palpina, Leech, Proc. Zool. Soc. Lond., 1888, 
p. 638. 
Pterostoma palpina, var. gigantina, Staud., Rom. sur Lép., 
vi, p. 363 (1892). 
There were specimens in Pryer’s collection from 
Yokohama and Oiwake; I obtained two examples at 
Nagasaki in June, and my native collector took the 
species at Hakodate. Specimens have also been received 
from Ichang, where they were captured in September. 
Staudinger records var. gigantina as well as typical 
P. palpina from Amurland. 
Distribution. JAPAN ; YESSO; KiusHIU; CENTRAL and 
EASTERN CHINA. 
