114 
MICROLEPIDOPTERA OE NEW GUINEA 
EUCOSMINI 
Peridaedala Meyrick, 1925 (fig. 332) 
Peridaedala, Meyrick, 1925, Exot. Microl., vol. 3, p. 139. Diakonoff, Treubia, 
vol. 19, pp. 186-187, 1948. 
A renewed study of both sexes of P. hierograpta Meyrick necessitates 
us to make the following redescription of this peculiar genus. 
Head with long hairs, very dense and rough, little ap pressed on vertex, 
more appressed on face. Ocellus posterior. Antenna with scape rather 
long, smooth, stout in male, rather slender in female, flagellum in male 
distinctly thickened, gradually tapering towards apex, minutely ciliate 
beneath, basal sixth strongly flattened dorso-ventrally and dilated, beyond 
base forming a rounded lobe which projects rostrad, and is followed by a 
Fig. 332: Peridaedala hierograpta Meyrick, head and antennal notch (dorsal aspect) 
in male (above), wing neuration and head female (below). 
deep notch, flagellum rather abruptly narrowed beyond this; flagellum in 
female normal, minutely pubescent. Palpus long, somewhat longer in 
female, median segment compressed laterally, ascending, dilated with 
dense scales; these scales rather appressed above, roughly projecting 
beneath, especially in female; terminal segment long, smooth, slender, 
cylindrical, porrect, about 1 / 2 of median (in P. c.rastidochroa under a / 2 ). 
Thorax without crest. Abdomen in male of craslidochroa with lateral 
pencils of long hairs on sixth and seventh segments. Fore wing in male 
with a costal fold to 2 / 3 , without raised scale-tufts; lb furcate at base, 
2 from 3 / 4 of lower edge of cell, 3 and 4 closely approximated in male, 
short-stalked in female, from angle, 5 close to 4, straight, horizontal, 
