76 
MICROLEPIDOPTERA OF NEW GUINEA 
of lower edge of cell, 3 from angle, 4 curved at base and approximated 
to 5, which is parallel, 7 separate, to termen, 9 remote, 11 from before 
middle, cell narrow, curved posteriorly. Hind wing without cubital pecten, 
a long pencil of hairs on base of vein lc, 2 from before 2 / 3 of cell, 3 and 4 
connate from angle, 5 approximated, 6 and 7 separate, somewhat approxi- 
mated towards base. 
Typus generis: Diphtheropyga niphadea spec, nov., male, female. 
Fig. 80: Diphtheropyga niphadea gen. nov., spec, nov., head male (above), female 
(below), wing nouration female, and anal segments of the female abdomen with 
corethrogyne, ventral aspect. 
Closely allied to Chionothremma gen. nov., differing by the absence of 
the costal fold in male, the rougher head and the structure of the anal 
segment in female. Intermediate between Zacorisca and the former genus. 
Diphtheropyga niphadea spec. nov. (figs. 62, 80, 83, 84) 
virpdt; = snow 
d 24 — 26 mm, $ 26 mm. Head and thorax pale-yellow, latter whitish 
posteriorly, face below white, above in male rough, pale yellow mixed 
with black, in female head and thorax pale yellow tinged pale ochreous. 
Palpus in male: moderate, dilated posteriorly, pale yellow, median joint 
along anterior half mixed with black, terminal suffused with black; palpus 
in female longer, less dilated, pale yellow tinged pale ochreous, terminal 
segment suffused with dark grey posteriorly except at apex. Abdomen 
in male dark leaden-grey suffused with white posteriorly, seventh segment 
black, eighth dark glossy bronze-grey above, bright yellow' beneath, 
abdomen in female silvery-white, seventh segment black above, white 
beneath, edged throughout with light yellow, corethrogyne small, ventral, 
jet-black, ovipositor a nd vesicle of eighth tergite light browm. Legs dark grey 
mixed with silvery-white. Fore wing without costal fold, costa moderately 
