MICROLEPIDOPTERA OF NEW GUINEA 
115 
parallel to 6, 7 and 8 stalked, 7 to termen, 9 approximated, 10 nearer to 11, 
11 from beyond middle of cell. Hind wing in male sometimes of modified 
shape: with a tornal lobe and thick scaling in tornus on the under side, 
(crastidochroa) ; with cubital pecten ; 2 from middle of cell, 3 and 4 stalked 
from angle, 5 closely approximated, 6 and 7 closely approximated towards 
base (in the two sexes) or sometimes stalked (in male). 
Tegumen strong. Uncus short, upper edge curved downward, indent in 
middle, sometimes forming two short median lobes. Socius rigid, sub- 
pending, narrowed, top curved mediad. Gnathos very strong, being a 
heavy rising transverse plate, deeply incised in middle, with two horn-like 
projections above. Transtilla absent. Valva narrow, more or less con- 
stricted beyond middle ; cucullus transversely dilated, bristled, sometimes 
dentate along edge; sacculus with an apical blunt projection. Aedoeagus 
short, straight, base bulbate. Ostium cup-shaped. Ductus bursae moderate 
or short with a short eestum, represented by a complicated plicate sclero- 
tized structure at its base. Bursa copulatrix large, spheroid, with two 
large nail-shaped signa. 
Tvpus generis P. Iiierograpta Meyrick 1925 (New Guinea). 
This genus can possibly be derived from Spilonota. Allied to Hermenias. 
The following four genera form a natural group. The most specialised is 
Peridaedala which is endemic in New Guinea, together with Allohermenias 
gen. nov. 
Key to the known species of Peridaedala 
1 . 
2 . 
3. 
4. 
Ground colour whitish, suffused with fuscous, no traces of greenish 
hagna Diakonoff 
Ground colour light green or distinctly suffused with greenish 2 
Two triangular dark brown spots on dorsum, a small cloudy dark grey suffusion 
below middle of costa archaea spec. nov. 
Not thus ^ 
Inwardly oblique, narrow, sinuate, interrupted transverse black streaks . . 
hie/rograpta Meyrick 
Scattered, ovate, rounded, crescentic or quadrate spots, or complete transverse 
fftSClftS* ,»•*»••*•••••****** , *’**** ,,, * ^ 
Discal spots black, not interconnected crastidochroa spec. nov. 
Discal spots brownish, interconnected so as to form an irregular fascia from 
costa beyond middle to 1 / i of dorsum and a preterminal transverse streak 
prasma spec. nov. 
Peridaedala hieropgrapta Meyrick, 1925 (figs. 325, 326, 332) 
Peridaedala hieropgrapta Meyrick, 1925, Exot. Microl. vol. 3, pp. 139-140 (male). 
Distribution : British New Guinea, Hydrographer Mountains, 2500 feet. 
Uncus broadly truncate, with strong folds at the sides. Socius curved, 
pointed. Gnathos strong, an invert -T-shaped plate, stalk bipartite, forming 
two straight rising horns, dilated above. Valva moderately constricted, 
cucullus broad, transversely-ovate ; distal projection of saccidus small. 
Aedoeagus short (Slide No. 778 D). 
