MICROLEPIDOPTERA OF NEW GUINEA 
153 
ringed. Fore wing narrowly elongate-triangular, costa straight, slightly 
curved at extremities, apex long, rounded, termen gently concave, very 
oblique. Fuscous-grey, irrorated with white. A blackish longitudinal mark 
on base of costa and six more marks along posterior 2 /s> becoming thicker 
and fuscous posteriorly ; discal stigmata small, rounded: first discal before 
1 / 4 , just above fold, almost touching an inwardly oblique small transverse 
mark in fold before this stigma, second discal on closing vein in middle of 
disc; plical stigma elongate, at 1 / 3 ; two faint small pale ochreous spots: 
above plical and above second discal stigma, respectively, the latter larger, 
together with second discal stigma edged posteriorly by an inwardly 
oblique whitish transverse streak; a moderate, triangular fuscous-blackish 
dorsal spot on end of fold; an ill-defined transverse subterminal patch of 
the same colour, from below costa to above tornus, interrupted above 
middle, upper part tending to dissolve in three blackish dots; costal marks 
accentuated by whitish irroration between them, terminal edge not 
irrorated with white. Cilia pale ochreous-whitish with dark grey tips, basal 
two-thirds densely irrorated with fuscous-grey except in tornus, edge of 
this irroration well-defined, base of cilia narrowly ochreous-whitish. Hind 
wing very pale fuscous-grey; cilia greyish-white. 
Tegumen elongate, broadest in middle, with an erect-pentagonal body 
at each side, upper edge with a slender rising and bristled projection, 
ventral edge bristled, lower edge angulate. Uncus, a moderate hook. Yalva 
slender, narrowed, cucullus somewhat clavate; sacculus short, with a 
terminal tooth. Aedoeagus moderate, cuspidate, with a marginal wreath 
of spines. Vinculum strong, erect-ovate. (Slide No. 854 D, type). 
Lake Habnema, 3250 — 3300 m, August 20, 1938. One specimen. 
Heterogymna melanococca spec. nov. (fig. 544) 
fj.ela" = black, xoxxog — kernel 
£ 27 mm. Head white. Antenna dark grey, white above. Palpus dark 
grey, upper, and apical edge of median segment and terminal segment 
throughout, white. Thorax (damaged) glossy blackish-grey, posteriorly 
mixed with white, tegula white with black basal half. Abdomen pale 
ochreous-whitish with bronze gloss. Legs dark grey, whitish below, 
posterior leg pale grey. Fore wing elongate-triangular, rather dilated, 
costa curved, apex obtuse, termen gently rounded, oblique. Whitish, 
suffused with grey, markings black. Edge of costa anteriorly black; a 
semiovate patch on costa beyond base not reaching fold, connected by a 
streak of blackish suffusion along edge of costa with base; moderate 
longitudinal marks on costa: at 1 / 8 , beyond middle, beyond 2 / 3 , and at 
3 / 4 , penultimate, mark small, ultimate subtriangular, almost connected by 
blackish suffusion with upper angle of cell; an ovate dot above dorsum 
beyond base ; an oblique longitudinal series of three dots : first dot round, 
below costa beyond 2 / 6 , median dot ovate, third dot largest, round, on 
