100 
MICROLEPIDOPTERA OF NEW GUINEA 
Ochromolopis bidentata spec. nov. (fig. 809, 810) 
g 19 mm . Head whitish tinged pale ochreous, sides of vertex slightly 
suffused with pale fuscous. Antenna pale fuscous, ringed with darker 
fuscous, cilia whitish. Palpus pale fuscous-ochreous, median segment 
irrorated with dark fuscous, more so towards apex, terminal segment 
with a narrow blackish subbasal ring, slightly irrorated with fuscous 
beyond this. Thorax pale ochreous, tegula moderately suffused with 
fuscous-ochreous, shoulder dark fuscous, tip whitish. Abdomen pale 
fuscous-ochreous. Legs : anterior blackish-fuscous, narrow white bands on 
articulations of segments, and also before apex of tibia; median leg paler, 
fuscous, with same bands; posterior leg sordid fuscous-ochreous, tibia and 
tarsal segments suffused with blackish towards base, apical whorls of 
bristles white. Fore wing narrowly lanceolate, much narrowed at base, 
base of dorsum rounded and rather projecting, apex acute. White; basal 
third suffused with pale tawny, this area terminated by a rounded light 
tawnv dot before */ 4 of costa and a transverse suffusion of the same colour 
below and beyond this; a streak of tawny-fulvous suffusion along central 
third of costa, reaching across one third of wing, lower edge lined with 
brown; an undulate narrowed strongly inwards-oblique tawny -fulvous 
band from anterior third of costa to 1 / 3 of dorsum; a broad subtriangular 
brown projection from lower edge of posterior part of costal streak, its 
top connected with a longitudinal light tawny suffusion extending above 
posterior half of dorsum to tornus, thence extended into a broad transverse 
patch, slightly narrowed above and reaching costa at 3 / 4 , its posterior 
half deeper tawny; an ovate rather dark fuscous patch beyond this to 
before apex extending to margins of wing; an oblique black apical dot. 
Cilia pale ochreous, along costa opposite subapical patch suffused with 
fuscous, this suffusion limited by two blackish bars; around apex and 
opposite upper half of termen irrorated with tawny ; suffused subapical 
greyish bar, irrorated with black; a postmedian line of black irroration 
from apex to opposite middle of termen; cilia beyond this whitish with a 
blackish patch opposite apex, another such patch opposite upper third 
of termen; dorsal cilia with three jet-black somewhat raised tufts of 
scales: on a / 5 of dorsum, below middle and below 3 / 4 of dorsum, the last 
tuft small. Hind wing light leaden-grey, cilia pale golden-ochreous. 
Uncus with a shorter hook than in the preceding species. Y'alva with 
costa less dilated, hook shorter, somewhat curved; cucullus much shorter 
and broader; sacculus rounded. Anellus plicate laterally, submembraneous. 
Aedoeagus longer. Cornutus, a large spike with a bulbate base. (Slide 
no. 1081 D, type.) 
Letterbox Camp, 3600 m, September 3, 1938. One specimen. Allied 
to the preceding. 
