90 
MICROLEPIDOPTERA OF NEW GUINEA 
11 and 17, 1939. January 8, 1939 (holotype). Moss Forest Camp, 2800 m, 
October 9— November 5, 1938 (allotype). Scree Valley Camp, 3800 m, 
September 22, 1938. Five males, two females. 
Isotenes prosantes spec. nov. (figs. 103, 104, 105) 
rcQoadvrri; = difficult 
$ 27 mm. Head and thorax ochreous-whitisli, vertex mixed with pale 
fuscous. Palpus white, with a lateral longitudinal brownish streak along 
basal 2 / 3 above, median segment with fringe mixed with brownish towards 
apex above and beneath, terminal suffused with dark fuscous above and 
beneath. Antenna fuscous, scape beneath and flagellum towards base 
whitish. Abdomen whitish, corethrogyne dark grey. Legs ochreous- 
whitish, anterior tibia and tarsus infuscated, light-banded. Fore wing 
elongate-truncate, costa abruptly curved at base, gently sinuate poster- 
iorly, apex rounded, termen hardly convex above, rounded beneath, 
little oblique. White, marbled and irrorated with dark grey; basal third 
of wing hardly irrorated, except for two light grey dots, alternating with 
fine strigulae along costa, and some grey suffusion along dorsum ; transverse 
fascia rather narrow, from beyond 1 / 3 of costa to beyond middle of dorsum, 
rather ill-defined, dark grey, narrowly edged with blackish, slightly dilated 
below, with considerably serrate edges, wing beyond this fascia slightly 
suffused with grey, costa from beyond middle to before apex with four 
moderate transverse fuscous marks, alternating with small strigulae; 
an ill-defined suffused inwardly oblique transverse erect-rhomboidal 
fulvous spot below and between first two costal marks, almost connected 
with tornus by an indistinct oblique greyish fascia, becoming darker 
below; a row of small blackish dots from below third costal mark to 
tornus, angulated outwardly in middle; a row of less numerous larger 
black dots from below fourth mark, gradually curved before apex and 
upper 2 / 3 of termen. Cilia white, with an antemedian row of transverse 
light fuscous streaks. Hind whig light ochreo us -greyish , suffused with 
darker fuscous-greyish and faintly marbled with grey on posterior half. 
Cilia pale fuscous-greyish with a grey antemedian fine. 
Limen straight, with minute lateral projections, in middle membraneous. 
Colliculum slightly narrowed below top. Cestum strong, long, coiled and 
furrowed, end tridentate, terminal fold with triangular top. Signum 
strong, little curved, dagger-like. Corethrogyne scales laneeolate-clavate, 
top with a curved projection (Slide No. 377 D). 
Araucaria Camp, 800 m, February 18, 1939. One specimen. Inter- 
mediate between marmorata and erasa, distinct by little marked basal 
third of fore wing and grey hind wing. 
Isotenes erasa spec. nov. (figs. 106, 107, 108) 
$ 26.5 — 29 mm. Head whitish, touched with pale ochreous, suffused 
with fight greyish-fuscous except on face. Palpus white, basal segment 
