78 
MICROLEPIDOPTERA OF NEW GUINEA 
arched anteriorly, gently arched posteriorly, apex rounded, in male termen 
straight, slightly oblique, in female gently sinuate above, rounded beneath. 
Snowwhite, sometimes faint ly suffused with dirty -greyish and scattered with 
a few black scales; costal edge in male suffused blackish to before 1 / 4 , a 
dark grey, moderately broad marginal suffusion along posterior fourth of 
costa, in apex, along termen and t-ornus, reaching to dorsum, sometimes 
only to middle of tornus, darkest on costa before apex; posterior half of 
terminal veins minutely striped with dark grey, on veins 9 — 6 these stripes 
reaching almost to cell, becoming shorter towards tornus; minute oblique 
dark grey costal marks on end of veins 11 and 12; in female grey, posterior 
markings paler and less distinct ; base of wing with a pale-yellow suffusion 
shortly produced along base of dorsum. Cilia grey, with darker base and 
pale middle. Hind wing and cilia snow-white. 
Male genitalia strongly sclerotized. Tegumen broad, rounded. Uncus 
broad, scarcely narrowed below top, which is tetragonal, bluntly emar- 
ginate in middle. Socius, a rather long series of weak bristles. Gnathos 
strong, arms considerably dilated posteriorly, hook strong, with rounded 
top. Transtilla knob rounded, median projection moderately long, curved. 
Peniculus large, subtriangular. Juxta broad. Vinculum broadly rounded, 
excavate in middle. Valva short, ovate, rather narrow. Aedoeagus almost 
rectangularly bent in middle, orifice oblique, point moderate. Cornuti 
long (Slide No. 362 D, hoiotype). 
Limen broad, membraneous, supported by a narrow chitinous rod 
slightly convex, lateral emarginations rather deep, rounded, lateral 
projections strong, rather short, abruptly narrowed above base, lateral 
rods moderately broad. Ostium wide. Colliculum short, annular, ventral 
split wide. Cestum strongly sclerotized, tortuous, rather short, strongly 
narrowed above, with a median furrow and a broad moderately long 
terminal fold. Signum short, with serrate edge. Eighth tergite strongly 
swollen, forming a rounded thick collar in which ovipositor can be entirely 
retracted. Corethrogyne scales small, slender, angularly bent in middle, 
base acute, top clavate, rounded (Slide No. 363 D, allotype). 
Lake Habbema, 3250 — 3300 m, July 31 — August 23, 1938 (hoiotype: 
August 6, 1938, allotype: August 8, 1938). Seven males, four females. 
Isotenes Meyrick, 1938 (fig. 91) 
Isotenes Meyrick, 1938, Trans. Ent. Soc. Loud., vol. 87, p. 507. Dtakonoff, 
Zool. Meded. Mus. Leiden, vol. 21, p. 147, figs. 10 I— K, 1939. Treubia, vol. 19, 
p. 486, 1948. 
Piliscophora Diakonoff, 1939, Zool. Meded. Mus. Leiden, vol. 21, p. 143 — 146, 
figs. 1 O— P, 3 G— H, 1939 (typus generis grisea Diakonoff, 1939 = crobylota 
Meyrick, 1910). 
Head rather smoothly covered with appressed scales of varying length, 
sometimes forming a very long, flattened tuft, projecting between antennae 
and curved downwards over face ; face with short scales. Antenna in male 
