MICROLEPIDOPTERA OF NEW GUINEA 
155 
Heterogymna polystigma spec. nov. (figs. 535, 543) 
JioAv = many, axiyixa = dot 
22 m, £ 21 — 22 mm. Head and thorax white, the latter tinged greyish 
dorsally, a black spot on shoulder. Palpus white, basal half black, lower 
edge of median segment sometimes suffused with black. Abdomen white, 
in male slightly tinged pale ochreous. Legs whitish, anterior leg suffused 
with blackish-fuscous, median leg suffused with grey. Fore wing elongate- 
triangular, dilated; costa moderately curved anteriorly, less so poste- 
riorly, apex obtusely pointed; termen gently curved, moderately oblique. 
Whitish, partially suffused and finely speckled with dark fuscous-greyish, 
markings blackish-fuscous. An elongate-semiovate spot on base of costa, 
whitish-grey, edged with blackish-fuscous, this edge interrupted anteriorly 
below costa; an inwardly oblique pair of elongate longitudinal marks at 
1 U> upper costal, lower subcostal, shorter; three longitudinal marks along 
third fourth of costa, anterior mark elongate, median minute, posterior 
large, continued by blackish suffusion towards upper angle of cell ; a small 
subtri angular spot above dorsum beyond base; an inwardly oblique 
curved series of four discal dots: first largest, elongate-ovate, just below 
fold somewhat before 1 / 4 , connected with second which is smaller, subplical, 
somewhat beyond preceding; third dot erect, transverse, just above and 
well beyond second, fourth larger, round, remote, well below costa beyond 
middle; another dot, sometimes larger than the fourth discal dot, before 
it just above fold ; two large round dots, broadly interconnected posteriorly, 
forming a transverse patch on closing vein, connected by blackish suffusion 
with 3 / 4 of dorsum ; fuscous-grey suffusion from beyond base of wing in 
cell and on dorsum, leaving narrow whitish edges around discal markings; 
an ill-defined subterminal blotch of sparse irroration, not reaching costa, 
becoming paler towards tornus, two suffused small grey dots on costa 
before apex, and sometimes a row of dark grey triangular interconnected 
dots along termen not reaching tornus. Cilia pale grey, basal half with a 
broad band of dark grey, suffused, narrowly separated blotches. Hind 
wing with veins 3 and 4 stalked ; pale ochreous-whitish, or greyish-whitish, 
smoky greyish towards apex; cilia whitish, tinged pale greyish towards 
apex. 
Tegumen broad, subconical. Uncus, a bent projection. Valva slender, 
narrowed ; sacculus short, ending in a strong point ; beyond this a strong, 
double transverse ridge-like fold representing the harpe; a blunt bristled 
projection towards base of disc of valva. Aedoeagus moderate, rather 
broad, stalk constricted, clavate; cornuti absent (possibly broken). 
Vinculum moderate. (Slide No. 853 D, holotype). 
Ostium simple, not modified. Bursa copulatrix simple. (Slides No. 864 D, 
allotype, No. 1115 D, paratype). 
Lake Habbema, 3250—3300 m, August 1, 1938 (holotype, male), 
August 16, 1938 (allotype, female), August 1, 18, 1938. Iebele Camp, 
