152 
MICROLEPID OPTERA OF NEW GUINEA 
nected with a large irregular marking in middle of disc which is connected 
by a straight, oblique fascia with 3 / 5 of dorsum; this marking is rounded 
above, enclosing an elongate-ovate horizontal spot of ground colour above 
middle of disc, and edged at the sides and below with black suffusion; 
besides, this marking with two irregular projections anteriorly: one at top 
and one below middle, and with a third projection posteriorly in middle 
of disc which edges the white discal dot from below; the latter less con- 
spicuous than in male; a suffused black dot on middle of costa; costal and 
terminal patches as in male, the former suffused with whitish above 
middle posteriorly, the latter continued along termen to above tornus; 
terminal line indistinct; white costal marks alternating with ferruginous 
spots. Cilia white, irrorated and barred along basal two-thirds with fuscous- 
blackish. Hind wing white, apical fourth coarsely retinate with pale greyish. 
Cilia white with a median series of pale fuscous dots along apical third of 
wing (Two specimens marked rather dark brown instead of ferruginous, 
and leaden-grev instead of greyish-ferruginous, one of these specimens 
densely irrorated and obscured, with markings indistinct; another specimen 
much lighter, dotted with blackish and leaden grey throughout, spot of 
ground colour in transverse fascia obliquely rounded instead of elongate- 
ovate; in both specimens discal white dot larger and more conspicuous 
than in allotype). 
Colliculum long, strong. Cestum long. Signum with point broad, moder- 
ately long, regularly curved (Slide No. 454 D, allotype). 
Moss Forest Camp, 2800 m, October 9 — November 5, 1938 (allotype, 
female). Lake Habbema, 3250 — 3300 m, August 27, 1938. Five km north- 
east of Lake Habbema, 2800 m, October 25, 1938 (holotype, male). Five 
males, four females. 
This large and distinct species is dedicated to the leader of the Expe- 
dition, Mr Richard Archbold. 
Thrincophora ostracopis (Meyrick, 1938) 
Anisochorista ostracopis Meyrick, 1938, Trans. Entom. Soc. Lond., vol. 87, p. 505. 
Thrincophora ostracopis, Diakonoff, Zool. Meded. Mus. Leiden, vol. 21, p. 147, 
figs. 4E (head), 4D (neur.), 6J (gen. <J), 1939. 
Distribution: British New Guinea: Papua, Western District, Mafulu 
4000 feet. Northwest New Guinea: Hunsteinspitze, 1350 m. 
Rattan Camp, 1200 m, February 19, 1939. One male. Hind wing with 
veins 6 and 7 stalked, veins 4 and 5 short-stalked, 3 from angle. Distinct 
by coarse markings, long costal fold to beyond middle of costa, and light 
ochreous-greyish, unicolorous hind wing. 
Thrincophora leucotorna spec. nov. (figs. 188, 190, 191) 
Xsvxoz = white, rogvog = tornus 
<J 22 — 26 mm. Head and thorax fuscous-grey mixed with white. Antenna 
fuscous-grey, faintly ringed with white. Palpus blackish, median segment 
