Lepidoptera fiom the Malay Archipelago. 83 
O. metriodora, sp. n. 
3 21mm. Head and thorax ochreous-yellow. Middle tibi 
with fine slender pencils of long hairs from base above and beneath. 
‘Forewings elongate-triangular, termen rounded, oblique ; on upper 
surface a fovea at end of cell, and a slight subcostal groove above 
it; 10 out of 9; shining white, suffused with fuscous in disc 
towards base ; an orange costal streak from base to }, suffusedly 
confluent with postmedian fascia; a broad orange partially fuscous- 
irrorated dorsal streak to 4 ; a triangular orange fuscous-irrorated 
median patch from costa, apex touching extremity of dorsal streak; 
a nearly straight fuscous-orange fascia at +, parallel to termen, 
ending beneath in dorsal streak ; an orange anteriorly fuscous- 
edged terminal fascia; a black interrupted terminal line: cilia 
whitish-fuscous, with an interrupted dark fuscous subbasal line. 
Hindwings suddenly sinuate below apex; whitish-grey, darker- 
sprinkled ; an orange subbasal fascia, extended along dorsum to 
meet posterior band ; a broad terminal orange band, leaving a 
three-lobed apical spot of ground colour, fuscous-sprinkled towards 
termen on lower half, enclosing on lower half a narrow whitish 
subterminal streak edged with black posteriorly on its upper half ; 
a black terminal line opposite this portion, and two semi-oval black 
dots beneath sinuation : cilia whitish-fuscous, with a dark fuscous 
subbasal line, lighter round apex. 
Talaut ; one specimen. 
O. mormodes, sp. n. 
3 2 34-45 mm. Head ochreous-yellow. Palpi in ¢ with ter- 
minal joint considerably elongate, porrected, terminating in a small 
hooked scaletuft. Antenne in ¢ dentate. Thorax ochreous-yel- 
lowish, with three dark fuscous anterior spots. Posterior femora 
in ¢ with small hairtuft beneath towards apex. Forewings very 
elongate-triangular, termen oblique, rounded, dorsum in ¢ slightly 
sinuate; in ¢@ upper margin of cell roughened above with erect 
scales, and a ridge-like tuft of hairs on 16 towards base ; 10 and. 
11 out of 9; shining grey-whitish ; a rather broad fuscous costal 
streak from base to 3, sending a thick suffused branch beneath. 
from + to middle of disc ; a long semioval blotch extending along 
dorsum from near base to near tornus, anterior half dark ochreous- 
fuscous, posterior half pale ochreous-yellow ; a rather broad dark 
ochreous-fuscous inwards-angulated fascia from 2 of costa, con- 
fluent with costal streak, and a similar nearly straight fascia from 
3, meeting at % above tornus and not continued further ; a pale 
ochreous-yellow anteriorly black-margined terminal fascia; an 
