from China, Japan, and Corea. 79 
central, and submarginal brownish lines, most conspicuous on 
the costa ; the primaries have a brownish dot on costa between 
central and submarginal lines, and the secondaries have a 
brownish discal spot. Fringes of the ground-colour preceded 
by a series of minute black dots. Under surface whitish 
ochreous ; primaries suffused with fuscous brown on costal 
portion of basal half; costa beyond tinged with darker 
ochreous. 
Expanse 27 miliim. 
One male specimen from Pu-tsu-fong: June or July. 
Hab. Western China. 
Hydrelia straminearia, sp. n. 
Pale stramineous. Primaries with four and the secondaries 
with three transverse dusky lines, the outer two in each case 
wavy and double; on the primaries there is a blackish dot 
at the costal extremity of the second and third lines; all the 
wings have a blackish discal dot. Under surface whitish ; 
primaries tinged with stramineous on the apical and outer 
marginal areas, and clouded with fuscous on costal portion of 
basal area; there is an angulated and sinuous fuscous central 
line, and a double wavy line beyond also fuscous : secondaries 
have indications of two fuscous transverse lines; discal dots 
as above. 
Expanse 33 millim. 
One male specimen from Wa-shan: June. 
Hab. Western China. 
HHydrelia albidaria, sp. n. 
White, with slight creamy tinge. Primaries have a black 
discal dot and four dusky, wavy, transverse lines, the third 
double; secondaries have three such lines, the middle one 
double. Under surface white; primaries fuscous on costal 
portion of basal area and traversed by three wavy fuscous 
lines, the central one well defined; secondaries have two 
fuscous lines ; all the wings have a black discal dot, and the 
fringes are preceded by an interrupted blackish line. 
Expanse 30-32 miilim. 
One male specimen from Chia-kou-ho, a female from Chia- 
ting-fu and one from Wa-shan: June and July. 
I have described the female from Chia-ting-fu, as the 
markings are more distinct in this particular specimen than 
in either of the others. 
Hab. Western China. 
