58 
MICROLEPIDOPTERA OF NEW GUINEA 
anteriorly, posterior half with long whitish cilia; costal edge narrowly 
suffused with black, apical and terminal edge with somewhat broader 
black suffusion, extending along terminal veins so as to form narrow 
black streaks halfway towards cell; a blackish streak on base of dorsum. 
Cilia white, basal half black. Hind wing blackish -grey, cilia as in fore wing. 
Tegumen much dilated. Uncus rounded. Gnathos short, curved upward, 
hook moderate. Socius, a series of bristles. Transtilla knob moderate, 
on a long slender stalk. Peniculus rather long. V inculum subovate (Slide 
No. 435 D). 
Baliem Camp, 1700 m, November 16—27, 1938 (allotype). One specimen. 
Chionothremma obscura spec. nov. (figs. 40, 46, 52) 
<j 18 — 18.5 mm, $ 22 mm. Similar to ochricauda spec. nov. (page 77), 
but with head brighter yellow, face in male white. Abdomen in male: 
three basal segments brownish black, posterior margin and sides of third 
segment and following two segments dark ochreous, sixth and seventh 
segments brownish-black, anal tuft golden-whitish, venter bright orange- 
ochreous, somewhat paler at base, preanal segment darker brownish -black 
from below and at the sides, with an orange patch in middle of posterior 
edge. Abdomen in female: blackish, fifth and sixth segments orange- 
yellow, venter yellow at base, yellow-orange posteriorly, corethrogyne 
large, black. Legs with coxae and femora silvery white, tibiae yellow- 
ochreous, tarsi brownish. Fore wing narrower, apical third of costa in 
both sexes edged with jet-black, terminal markings more connected with 
each other, forming a conspicuous terminal band, dentate anteriorly; 
costal fold broad, its inner edge convex, considerably curved at base, less 
curved posteriorly, shortly ciliated along its entire length. Yellow pre- 
terminal suffusion on veins reaches halfway to cell. Hind wing black, 
dark grey anteriorly. Cilia in both lore and hind wing snow-white. Fore 
wing from underside narrowly suffused with blackish along costa and on 
terminal fifth, more evenly in female. 
Tegumen clavate, base moderate. Uncus moderate, top rounded, slightly 
emarginate. Socius, a small rounded patch of bristles. Gnathos strong, 
moderately long, hook moderate. Transtilla knob large, elongate, den- 
tations short, median projections long, almost touching each other in 
middle. Peniculus rather long. Juxta strongly corrugated. Vinculum very 
broad, subreetangular. Valva broad, semispheroid. Aedoeagus with 
obliquely truncate top, without point (Slide No. 359 D). 
Limen, a broad plate with narrow deep lateral emarginations and 
rather short lateral projections. Colliculum rather long, somewhat narrowed 
below. Cestum long and narrow, without a furrow, but with a longitudinal 
ridge running throughout, without torsions, strongly coiled; terminal fold 
rather short. Signum robust, edge short-serrate. Anal segments weak 
(Slide No. 360 D). 
Araucaria Camp, 800 m, March 9, 1939 (allotype). Sigi Camp, 1500 m, 
