224 Messrs. J. J. Joicey and G. Talbot on new 
together in cellules 6,7, and 8. Hind wing without markings ; 
fringe white to vein 6 or before it; outer margin more or 
less narrowly edged with white from anal angle to vein 2, 
this being most marked in the specimens from the Wan- 
dammen Mountains. 
Underside of fore wing dark chestnut-brown along costa 
and over apical area, remainder black-brown ; some bluish- 
white scaling along outer margin and the dots of the upperside 
showing through. Hind wing dark chestnut-brown; a large 
oval creamy-white spot below the cell, touching vein 2 and 
the submedian ; below this a small white spot near the outer 
margin. 
Antenne black, club pale yellow beneath; palpi black 
above, white below and at the sides; head, thorax, and 
abdomen black, the abdomen with some grey-white hair on 
the ventral surface ; pectus grey-white ; legs black-brown, 
slightly scaled with yellow, femora with a fringe of grey- 
white hair. 
Length of fore wing 15 mm. 
Hab. Wandammen Mtns., 3000 feet, Nov., 1 ¢ (type) ; 
Angi Lakes, Arfak Mtns., 6000 feet, Jan.—Feb., 2 ¢ ¢. 
Acerbas albimedia, sp. n. 
Distinct from the other species of the genus. 
3. Upperside black-brown. ore wing with a yellow 
inner marginal streak, slightly curved from near the base to 
above the submedian, this vein separating the spot above it ; 
above this in one specimen is seen a faint yellow dot in 2. 
Hind wing with a narrow transverse discal band of five small 
spots placed in le, 2, 3, and 4. 
Underside of fore wing black-brown, costa and apical area 
paler and with a greenish sheen ; three small pale yellow 
median spots, one above vein 2, the others below it. Hind 
wing with base and distal margin grey-brown with a greenish 
sheen ; a broad white discal band from the costa to inner 
margin, much broader below the submedian, so that nearly 
all the inner margin is white. 
Antenne black, club yellow below posteriorly ; palpi and 
frons greenish yellow, vertex black ; thorax and abdomen 
above black, some dark greenish hair on patagia and base of 
abdomen ; abdomen below sulphur-yellow, with a thin mesial 
line of whitish hair; legs black and more or less scaled with 
yellow, femora with a fringe of grey-white hair. 
Length of fore wing 18 mm. 
