54 
MICROLEPIDOPTERA OF NEW GUINEA 
Chionothremma mesoxantha spec. nov. (figs. 44, 50) 
fXEGoq = centre, = yellow 
5 24 — 28 mm. Head and thorax ochreous-orange. Palpus long, curved 
beyond middle, orange-ochreous, median joint scattered with minute black 
scales, terminal joint suffused with black at the outer side. Antenna with 
scape yellow-orange below, blackish above, flagellum blackish. Abdomen 
yellow-orange, anal segment and corethrogyne greenish-black, ovipositor 
lobes deep orange. Legs orange-yellow. Fore wing with costa gradually 
curved anteriorly, less curved posteriorly, apex rounded, termen scarcely 
concave, vertical. Yellow-orange, or orange-yellow, apical half of wing 
violet-purple, in one specimen with bluish shine, with anterior edge more 
or less concave, oblique, from costa beyond -/ 6 or about middle, to dorsum 
beyond or at 3 / 5 . Cilia purple-violet. Hind wing yellow-orange or orange- 
yellow, a shade deeper than fore wing, apical area dark violet-purple, its 
inner edge slightly suffused, concave, from 1 / i or J / 6 of costa, little oblique, 
narrowly produced along termen, not reaching tornus. Cilia purple-violet, 
yellow on dorsum. 
Limen curved, with deep excavations at the sides, lateral projections 
moderate, above these a triangular plate at each side. Colliculum weak, 
cylindrical. Cestum peculiar: not coiled gradually dilated posteriorly, 
with series of scobinations, terminal fold long; wall of ductus bursae 
distinctly chitinised below. Bursa copulatrix rather small. Signum small. 
Eighth and ninth segments considerably sclerotized, the latter forming a 
dorsal collar around the ovipositor (Slide No. 323 D). 
Top Camp, 2100 m, January 21 — February 4, 1939. Moss Forest Camp 
five km northeast of Lake Habbema, 2800 m, October 29, 1938 (holotype). 
Three females. 
Chionothremma ferratilis spec. nov. (fig. 36) 
28 mm. Head with vertex and collar rather pale brownish-ochreous, 
face white. Palpus brownish-ochreous, base whitish, median segment 
darker towards apex, terminal segment dark greyish-fuscous. Antenna 
with scape white below, brownish-ochreous above, flagellum blackish, 
dotted white above to about 1 j i . Thorax white anteriorly light brownish- 
ochreous. Abdomen glossy white, tergites showing through, blackish, 
anal segment ochreous-whitish below', somewhat darker ochreous laterally, 
anal tuft whitish above. Legs with coxae pale ochreous, femora white, 
tibiae and tarsi suffused pale ochreous, anterior tarsus dark ochieous- 
fuscous. Fore wing with broad costal fold, reaching to beyond 2 / s of costa, 
w ith edge rounded, smooth to beyond middle, indent there, narrowed and 
ciliated posteriorly; costa little curved but considerably oblique anteriorly, 
straight posteriorly, apex rounded, somewhat projecting, termen slight! j 
concave above, rounded beneath, vertical. Creamy- white, more distinct 1\ 
tinged with creamy on basal half of costal fold, very sparse separate black 
scales scattered here and there over the w'ing; basal fourth of costal edge 
