Heterocera from Dutch New Guinea. 63 
which is placed a rounded black spot divided by a grey dash; 
a subterminal line, slightly crenulate; a mesial longitudina 
line, thicker than the others, running from the base along 
lower edge of cell and vein 4 to outer margin; reniform 
small, bright_ochreous.. Hind wing pale cimnamon-brown. 
Underside—Fore wing rufous-brown, paler at base and 
inner margin. Hind wing ochreous, dusted with rufous; a 
thick brown post-discal line, strongly curved at nervure 5. 
Antenne and palpi rufous-brown ; thorax cinnamon- 
brown ; abdomen greyish ochreous, dusted below with 
rufous ; legs cinnamon-brown, the posterior ones ochreous 
on the inside. 
Length of fore wing 21 mm. 
Hab, Arfak Mtns., Angi Lakes, 6000 feet, March. 1 2. 
Lasioceros dentilinea, sp. n. 
CPL: BY, ite: 'G:) 
The genus Lasioceros was described by Mr. Bethune- 
Baker in Nov. Zool. vol. xi. p. 380 (1904), from a single 
specimen from the Aroa River, British New Guinea. 
As the species we now describe differs in certain particulars 
from Baker’s diagnosis of the genus, we considered it 
necessary to examine the type in the Tring Museum. 
Mr. L. B. Prout has very kindly undertaken to do this, 
with the result that we have to amend the original diagnosis. 
‘The eyesare glabrous. The antenne have the lower surface 
evenly ciliated to the tip. The femora are somewhat hairy. 
The hind wing has vein 8 approximating to 7 and not 
anastomosing. 
L. dentilinea diverges from the generic structure as seen 
in aroa, B.-B., aud will constitute a new section of the genus. 
As it is in secondary sexual characters that dentilinea differs 
from aroa we do not feel justified in giving this a separate 
generic distinction. ‘The new section of Lasioceros will be 
constituted by the following structure seen in ¢ dentilinea. 
The antennz with upper surface-smoothly scaled, lower 
surface without concavity, pilose or thickly ciliate, with 
longer hairs on the outside. Hind tibiz bearing a thick 
comb of hair. Underside of wings with much hairy scaling. 
6 . Upperside.—Fore wing greyish ochreous, paler in the 
cell, with an apico-costal white suffusion which is also 
present on the costa at a third from base; intervening space 
filled in by a somewhat quadrate blackish patch from costa 
to vein 8, but not well-marked below costa; a curved black 
mark on discocellular, and below it a rounded dark spot ; a 
