MICROLEPID OPTERA OF FEW GUINEA 
147 
Isochorista sulcata spec. nov. 
16 mm. Head pale oehreous. Palpus dark grey, extreme tip pale 
ochreous. Antenna pale greyish, dark -ringed, scape pale oehreous. Thorax 
pale ochreous, spotted with dark grey, shoulder more suffused with dark 
grey. (Abdomen missing). Legs dark fuscous, posterior pale ochreous, tibiae 
faintly pale-ringed. Fore wing elongate-triangular, dilated, costal fold 
strong, moderately broad, with a deep submedian furrow throughout, 
posterior third of lower edge eiliate; costa moderately curved throughout, 
apex somewhat projecting, obtusely pointed, termen slightly concave 
above, obliquely rounded beneath, rather oblique. Whitish-ochreous, 
scattered with dark fuscous and brownish scales, markings dark fuscous. 
Base of wing and of costa suffused with dark fuscous ; base of dorsum with 
a large rounded-ovate patch of long dark grey scales, originating from 
edge of wing, and pressed against wing surface; this patch reaching halfway 
across disc, suffused posteriorly with fuscous; edge of this suffusion straight, 
from below fold at 1 / 8 of wing to 1 / 4 of dorsum; costal fold along edge of 
costa suffused with fulvous-brown, dotted with dark fuscous, posterior 
fourth suffused with dark greyish-fuscous; costal patch large, slightly 
oblique, elongate-triangular, from beyond middle of costa to before apex, 
reaching below almost to vein 5, blackish-fuscous, mixed with chestnut- 
brown, three pale ochreous dots along costa; top of costal patch connected 
by an oblique narrow greyish- brownish striga with tornus; posterior 
fourth of wing transversely strigulated with rather ill-defined narrow 
greyish and brownish lines, running parallel to the latter strigula. Cilia 
rather bright ochreous, mixed with brown scales along middle, pale 
towards tornus. Hind wing pale fuscous, densely marbled with darker 
fuscous, cilia greyish-ochreous. 
Moss Forest Camp, five km northeast of Lake Habbcma, 2800 m, 
October 15, 1038. One specimen, unfortunately lacking the abdomen, but 
sufficiently defined by dorsal patch of scales and by the peculiar shape of 
costal fold in fore wing. 
Isochorista polysperma spec. nov. 
noXv = many, ajieg/iia = a seed 
$ 12.5 mm. Head, palpus, thorax and antenna oohreous-grey, antenna 
dark-ringed, palpus suffused and irrorated with blackish (Abdomen 
missing). Legs ochreous-greyisli , anterior and median much infuscated, 
tarsi light-ringed. Fore wing elongate-subovate, rather narrow, costa 
strongly curved anteriorly, straight in middle, slightly curved before 
apex, apex rounded, somewhat projecting, termen sinuate, rather oblique. 
Pale greyish-ochreous, faintly irrorated with light brown, suffused with 
grey, marked with dark brown scales. Basal patch indicated by a small 
triangular grey spot on base of costa, with lower edge horizontal, and by a 
small greyish suffusion on base of dorsum; central fascia ill-defined, 
formed by a narrow oblique transverse fascia on 1 / 4 of costa reaching to 
