MICROLEPIDOPTERA OF SEW GUINEA 
67 
Chionothremma carbonifera spec. nov. (figs. 63, 69) 
$ 16 — 18 mm. Head deep orange-ochreous, yellowish in male, palpus 
and scape of antenna orange-ochreous, pale yellow in male, terminal 
segment somewhat darker, in male suffused with black externally. Fla- 
gellum of antenna blackish in male, greyish, white-ringed in female. 
Thorax orange-ochreous. Abdomen light ochreous-yellow, darker in male, 
with darkly coloured tergites showing through, venter pale yellow, 
preanal segment jet-black from below, anal tuft whitish, mixed with 
greyish, glossy; corethrogyne large, dark bronze grey, mixed with jet- 
black. Legs yellow, anterior tarsus suffused with deep orange-ochreous. 
Fore wing with costal fold rather broad, reaching to before middle of costa ; 
costa strongly arched anteriorly, in male straight posteriorly, in female 
broad ly prominent at 2 / 3 , apex rounded ; termen straight, vertical. Bright 
yellow-orange suffused with deep ochreous-orange on base of costa; 
markings in male: a minute, short blackish streak along costal edge, 
beginning before base of wing, a moderate black fascia in apex and along 
termen, dilated in apex, its inner edge concave, suffused, forming irregular 
short dentations on veins; markings in female: a moderate ovate patch 
in apex not reaching one-fourth towards cell, connected with a narrow 
suffused streak along termen to vein 6 ; a few black scales along terminal 
edge to above middle. Cilia yellow-orange with paler posterior half. Hind 
w'ing and cilia somewhat paler, in male apex blackish, connected with a 
black suffusion reaching to base of vein 2, very narrow below, in female 
a small elongate black mark in apex. 
Li men moderately broad, strong, convex in middle, lateral emar- 
ginations bluntly angular, lateral projections broadly triangular, moder- 
ately long, lateral rods dilated, deeply concave in middle. Colliculum very 
strong, somewhat narrowed above, with a moderate split ventrally. 
Cestum narrow, not tortuous, with a large coil around bursa eopulatrix. 
Signum broad, capitulum (i.e., rounded external projection) ovate. Eighth 
tergite broad, rounded (Slide No. 333 D). 
Top Camp, 2100 m, January 21, 25 (type), 28, 1939. Three specimens. 
Chionothremma nigrangula spec. nov. (figs. 57, 65, 73) 
3 20.5 mm. Head, thorax white; palpus, vertex of head and tegida pale 
citric-yellow, median segment mixed with black, terminal segment black. 
Abdomen blackish with hind edge of segments pale bronze-brownish 
anteriorly, bronze-brownish with fore edge of segments black posteriorly, 
venter dark brownish -grey, preanal segment black, apical tuft silvery- 
white. Legs pale ochreous. Fore wing with a broad costal fold to beyond 
two-fifths, costa^slightly curved and oblique along this, straight in middle, 
little curved before apex, apex rounded, termen straight, vertical, rounded 
beneath. Whitish, faintly tinged ochreous anteriorly, suffused along apical 
third with pale citric-yellow; a small black suffusion in apex continued 
along upper three-fourths of termen by a row of suffused small dots 
