Heterocerous Lepidoptera from Japan. 189 
white at inner margin; a small bisinuated subapical 
costal white line; outer border rather narrow, slightly 
cupreous, limited within by a subconfluent series of 
sagittate spots; a marginal series of black lunate spots 
followed by a whitish line at the base of the fringe, the 
latter dark greyish brown, traversed by a darker central 
line; secondaries sericeous greyish brown; fringe pale, 
with a dark line near its base; thorax dull black ; 
abdomen greyish brown; under surface sericeous, pale 
greyish brown, the costal borders mottled with whity 
brown and white ; expanse of wings, 1 inch to 1 inch 
1 line. 
Tokei (Fenton) ; Yokohama (H. Pryer). 
Mr. Moore referred me to the genus Prospalta of 
Walker for this species, and I have no doubt that he was 
right in so doing, but I cannot regard it as distinct from 
Hrastria. 
72. Hrastria senex, n. 8. 
Primaries above silvery white ; a large C-shaped dark 
brown streak at the base, its centre filled in with pale 
brassy yellowish; an irregular band just before the 
middle, widely interrupted in the centre, so as to leave 
only two large spots well defined, dull testaceous, flecked 
with black-brown; an obtusely angulated brassy yel- 
lowish discal band from costal to inner margin, and 
a rather narrow external border of the same colour: a 
subapical costal black spot, a grey spot at apex, a black 
dot near the outer margin on the second median inter- 
space ; fringe white tipped with black, a black spot upon 
it at the apex, two opposite to the median interspaces, 
and one at external angle; secondaries sericeous, grey, 
the apical half, excepting a white basal line, grey, the 
anal half white ; head and prothorax pale buff, bordered 
with black, the remainder of thorax white; abdomen 
with the basal half white, the anal half pale buff; a 
dorsal series of black spots; primaries below sericeous 
grey, with one or two darker costal dashes ; inner border 
whitish ; fringe as above ; secondaries sericeous creamy 
white, the costal border and discoidal cell irrorated with 
grey; a grey discal angulated line; an angular disco- 
cellular black marking; body below white; legs banded 
with dark grey ; expanse of wings, 1 inch 1 line. 
Tokei (Fenton). 
Nearest to HZ. albidula of North America. 
