68 
MICRO LEPIDOPTERA OP NEW GUINEA 
costa and on base of dorsum to one-fifth; in male costal edge narrowly 
black to one-fourth. Cilia snow-white. Hind wing white, apical edge some- 
times narrowly black in male, this edge very narrow and indistinct in 
female; suffused with pale yellowish on veins posteriorly and along pos- 
terior edge. Cilia snow-white. 
Tegumen clavate, base rather narrow. Uncus broad, top gradually 
rounded. Socius small, a few bristles. Gnathos short, arms and hook broad. 
Transtilla knob elongate, median projection long, slender. Peniculus 
rather short, rounded-clavate. Juxta corrugate, with a median furrow 
below, ventral edge slightly projecting in middle. Vinculum short, broad. 
Valva moderately elongate. Aedoeagus with top obliquely excavate 
(Slide No. 317 D). 
Limen narrow, strong, angulate in middle, lateral projections moderately 
long, strong ; lateral rods dilated, forming at each side a plate with concave 
inner edge. Colliculum short, very strong. Cestum broad, with a shallow 
longitudinal furrow, edges much thinner than middle portion. Terminal 
fold long, its lower edge somewhat excavate. Signurn strong. Eighth tergite 
with posterior edge somewhat concave (Slide No. 335 D). 
Moss Forest Camp, 2800 m, October 25, 1938. (One female without 
yellow suffusion on base of dorsum). Lake Habbema, 3250 — 3300 m, end 
July to end August, 1938 (holotype, allotype). (L. J. Toxopeus, L. J: 
Brass.) Three males, ten females. 
Chionothremma citricaput spec. nov. (figs. 66, 71) 
$ 17 — 18 mm. Head, thorax and palpus light citric-yellow, the latter 
with terminal segment fuscous. Antenna with scape bright yellow, flagellum 
black, minutely ringed with white. Abdomen bright ochreous suffused 
with white above, corethrogyne large, broad, dark bronze-grey. Legs 
light ochreous, paler basally. Fore wing with costa gradually strongly 
curved from base to beyond one-third, less curved posteriorly, apex 
rounded, termen straight, vertical. Silverv-snow-white, a light citric- 
yellow suffusion at base of wing, narrowly produced along costa to one- 
sixth; a narrow, well-defined deep yellow marginal streak along posterior 
sixth of costa, around apex and along termen to before tornus. Cilia 
snow-white. Hind wing and cilia snow-white. 
Limen narrow, with a short V-shaped indentation in middle, lateral 
emarginations rounded, lateral projections very short. Colliculum rather 
short, narrowed below top and towards end. Cestum moderately broad, 
coiled twice, with a slight median longitudinal ridge. Terminal fold short. 
Signurn broad, its edge finely serrate in middle. Eighth tergite truncate 
(Slide No. 329 D). 
Top Camp, 2100 m, January 21 (type), 22, 28, 1939. Three specimens. 
