20 
MICROLEPIDOPTERA OE NEW GUINEA 
siderably compressed laterally, anterior margin flattened, terminal segment 
under 1 / 2 , subobtuse; yellow, median segment with lower half below and 
terminal segment, except its upper edge, light dove-grey with lilac gloss. 
Thorax and abdomen fuscous-grey with lilac gloss, venter pale yellowish, 
anal tuft yellow. Legs whitish, anterior tibia and tarsus suffused with 
yellow above, median with grey edged with yellow, posterior with grey 
only. Fore wing elongate-triangular, dilated, costa little curved at base, 
straight posteriorly, apex rounded, termen gently rounded, hardly oblique. 
Fuscous-violet, with bluish gloss, more so towards base, markings bright 
ochreous-yellow. Two-thirds of costa narrowly suffused with pale grey, 
tinged yellowish; a wedge-shaped transverse streak beyond 2 / 5 of costa, 
strongly narrowed along its lower half, not reaching lower edge of cell, 
edges suffused: anterior gently sinuate, posterior edge concave; a less 
oblique erect-ovate moderate spot from slightly above lower edge of cell 
halfway towards 3 / 4 of dorsum; a streak from termen well above tornus 
to apex, narrow along its lower half, more than twice as broad along its 
upper half, top rounded ; a branch from middle of this streak to 4 / 5 of costa, 
strongly dilated triangularly above, anterior edge gradually concave 
throughout ; cilia fuscous-grey, paler towards apex, basal third fuscous- 
violet. Hind wing fuscous, basal half hyaline, veins dark fuscous, narrowed 
streaks of scales: subcellular, along vein lc and halfway between veins 
la and lb, the last one broadest, scaling extended between the two former 
streaks over posterior third of wing, in cell 2 to its middle, in cells 3 4 5 
scaling continuous but sparse. Cilia pale fuscous-grey, basal third dark 
fuscous. 
Tegumen weak, submembraneous, erect, top triangular. Uncus, gnathos, 
transtilla absent. Vinculum strong, ellipsoid. Valva subtriangular with 
narrowed base, cucullus obtusely projecting, sacculus simple, very broad 
at base, little sclerotized ; harpe, a subapical sinuate spike. Anellus, a 
strong rising plate with two diverging apical projections, bristled at the 
top. Aedoeagus long, attenuated, with a series of short blunt thorns 
posteriorly, its base bulbate. Cornuti, a dense patch of short spines. 
Seventh abdominal segment with two pairs of strong coremata. (Slide 
no. 1042 D, type.) 
Araucaria Camp, 800 m, March 6, 1939. One specimen. Nearest to 
I. lyrifera Meybick, 1910, from Kei Islands and Woodlark Island, 
differing by absence of longitudinal markings in the fore wing. 
Imma selcnaea spec. nov. (figs. 737, 738) 
aeXrjvaXoq = lighted by moon 
$ 22 mm. Head dark fuscous tinged lilac, side tufts laterally, orbits and 
sides of face pale ochreous. Palpus ascending, moderate; grey, basal 
segment and base of median segment above and beneath suffused with 
pale ochreous; terminal segment under 1 / i , acute. Thorax dark fuscous 
