146 
MICROLEPIDOPTERA OE NEW GUINEA 
exposed. Fore wing with vein lb furcate at base, 2 from towards angle, 
3 and 4 approximated, 8 separate, 9 moderately approximated at base, 
11 from beyond middle. Hind wing in female without cubital pecten; 
2 from before angle, 3 and 4 stalked, 5 and 6 absent. 
Genotype Actenoptila eucosma spec, now, female. 
Closely allied to Heterogymna, differing by absence of a cubital pecten 
in female. We presume that the male has subascending or ascending 
roughish palpi, and also no cubital pecten in hind wing. 
Key to the species of Actenoptila 
1. A large subtrapezoid costal patch 2 
No such patch heliotropia spec. nov. 
2. Costal patch deep bronze-brown eustales spec. nov. 
Costal patch greyish-fuscous, suffused with white, dotted with darker .... 
eucosma spec. nov. 
Actenoptila eucosma spec. nov. (figs. 532, 536) 
itfxoo/ios = ornate 
18 mm. Head, abdomen and thorax white, the latter somewhat mixed 
with fuscous anteriorly. Palpus dark fuscous mixed with white, upper 
edge, except at base of terminal segment, white. Antenna white, flagellum 
somewhat infuscated. Abdomen and legs white, anterior and median legs 
more or less suffused with black. Fore wing elongate-subtriangular, dilated, 
costa little curved, apex subacute, termen distinctly sinuate, oblique. 
White, scattered with greyish-fuscous scales, more or less suffused with 
grey posteriorly; a triangular spot on base of costa not reaching base of 
wing and base of dorsum, suffused greyish-fuscous, dark fuscous anteriorly 
and posteriorly, posterior margin very oblique, edged with somewhat 
raised scales; a small tuft of slightly raised dark fuscous-grey scales on 
fold beyond basal patch; a large suffused fulvous-fuscous invert-trapezoid 
patch extending from L / 4 to 3 / 4 of costa, reaching halfway across wing; 
anterior half of this patch lighter, with three rather faint blackish subcostal 
dots, posterior edge very oblique and edged along transverse vein with a 
narrow ridge of somewhat raised white scales; lower anterior and posterior 
angles of the trapezoid patch each connected with a patch of slightly 
raised dark fuscous scales: six suffused blackish costal dots: four of these 
elongate, along trapezoid patch, first dot beyond anterior, last dot on 
posterior edge of that patch, two smaller dots preapical; a broad sub- 
tcrminal shade from costa to tomus, dark grey, ill-defined, sometimes 
almost obsolete, with posterior edge blackish, and more distinct below; 
a moderate triangular fulvous-fuscous apical patch, mostly indistinct, 
continued in a suffused row of fuscous spots along termen to tornus; a 
faint suffused transverse strigula on end of fold, connecting dorsum with 
trapezoid patch. Cilia whitish, tips grey, a broad suffused grey median 
