MICROLEPIDOPTEBA OF NEW GUINEA 
87 
anteriorly, apex rounded, termen scarcely sinuate above, rounded beneath. 
Rather dark grey. Basal half of wing dark fuscous-grey, indistinctly 
transversely strigulated with blackish; costa somewhat paler, with two 
quadrate fuscous-grey dots: beyond base and at 1 / 8 , elsewhere with suf- 
fused transverse dark grey strigulae; middle of disc at base of wing suf- 
fusedly whitish; apical third of wing light mouse-grey, with irregular 
oblique series of suffused black dots and some four subtriangular costal 
dark grey dots, decreasing in size posteriorly; basal and apical areas 
separated by an ovate transverse whitish blotch from costa beyond 
middle to dorsum before tornus, suffused with grey on lower third, some- 
times preceded by broad dark grey suffusion, followed by a rather dark 
grey outwardly con vex transverse fascia from below 3 / 5 of costa to tornus ; this 
fascia is serrate, dilated below, beginning by an oblique rectangular dark 
brown dot; a faint curved moderate streak from termen above tornus 
parallel to transverse fascia. Cilia whitish, with a broad antemedian grey 
line. Hind wing white, towards apex faintly spotted with greyish, cilia white. 
Limen almost straight, only faintly excavated towards ostium, slightly 
convex in middle, submembraneous. Colliculum elongate, narrowed below. 
Cestum narrow, moderately long, its extremity with a truncate projection 
in middle, emarginate at each side, terminal plate moderately broad, 
triangular. Signum slender, curved, short-serrate. Corethrogyne scales 
narrowly lanceolate, long, top slightly dilated, with a projection, base 
slightly dilated (Slide No. 373 D, allotype). 
Moss Forest Camp, 2600—2800 m, October 9— November 5, 1938 
(allotype). Five km northeast of Lake Habbema, 2800 m, October 16, 
1939 (holotype). One male, four females. Nearest to 7. miserana group, 
but much larger. 
Isotenes mesonephela modesta var. nov. 
$ 25 — 27 mm. Head and body as in typical form. Fore wing somewhat 
broader, ochreous -whitish, not suffused with dark grey, densely irrorated 
and retinate with fuscous-greyish. Basal area with two ill-defined oblique 
streaks, reaching to fold; central fascia ill-defined, moderately broad, 
oblique, from 2 / 5 of costa to dorsum before tornus, edges somewhat darker 
below middle, anterior angulate, posterior indistinct; costal patch and 
costal dots before apex as in typical form; a black point on lower angle 
of cell, followed by a smaller one ; preterminal black dots in two curved 
oblique series. Hind wing as in typical form. 
Iebele Camp, 2250 m, November— December, 1938. Moss Forest Camp, 
2600 — 2800 m, October 9 — November 5, 1938 (holotype). Five km north- 
east of Lake Habbema, 2800 m, October 30, 1938. Five specimens. "Very 
similar to I. erasa spec, nov., but with a slightly broader fore wing, and a 
blackish corethrogyne. The genitalia and the shape of the scales of 
corethrogyne identical with those of the typical form (Slides No. 37-. D, 
holotype, and No. 385 D). 
