88 
MICROLEPIDOPTERA OF NEW GUINEA 
second dot below the upper edge of the cell, third, elongate, more shifted 
posteriorly, on 2 / 3 of the fold ; an elongate small dot just below 2 / 3 of the 
costa and a round dot on the middle of the closing vein; scattered blackish 
scales tending to form small dots: on the upper half of the disc before the 
middle and in a more or less distinct transverse band from 2 / 3 of the 
costa to the termen before the tornus ; an irregular, outwardly curved sub- 
apical transverse band of blackish-grey irroration from vein 10 to before 
the termination of vein 4; a marginal row of small blackish dots between 
veins along the posterior fourth of the costa, in the apex and along the 
termen. Cilia white. Hind wing and cilia, glossy greyish-white. 
The genitalia are peculiarly built. We figure those of the type specimen 
in toto (in ventral aspect) and those of the paratype specimen dissected, 
to make clear the different, parts. 
Eighth abdominal segment considerably modified, membraneous, parti- 
ally strongly sclerotized, enveloping the genitalia and tightly connected 
with them by ligaments situated dorsally and caudally. Apparently the 
genitalia can be extruded out of this segment only partially or not at all. 
Dorsally this segment forms paired strong sclerites, subovate and crowned 
by a long dorsal projection, and a ventral knob. Apparently these struc- 
tures have taken over the function of the valvae. They must be homologous 
with the (unpaired) mensis dorsalis of the Tortricidae. Ventrally the 
eighth segment bears two more sclerites, shaped as long curved slender 
rods and apparently homologous with the unpaired mensis ventralis in 
the Tortricidae. 
Inside the cylinder of the eighth segment the genitalia show con- 
siderable modifications as compared with the common type. The tegumen 
is strong and short. The uncus is very short, crowned with two naked 
flattened projections, and has a rounded top. The socii, the gnathos, and 
the transtilla are absent. The valvae are moderate, with the sacculi 
soldered together and forming one horizontal plate, rather rigidly con- 
nected with the tegumen and forming together with this a complete ring; 
cuculli are free, and form submembraneous, densely bristled pads. The 
juxta and the anellus are large, soldered together and rigidly connected 
with the bases of the valvae, the anellus forming a long cylindrical sheath 
to the aedoeagus; the anellus projections are slender, with bristled tops. 
The aedoeagus is curved, somewhat compressed laterally, with its basal 
part forming a moderately sclerotized, tortuous band. (Slides no. 1026 D, 
holotype, no. 1027 D, paratype.) 
Sigi Camp, 1500 m, February 26, 1939 (holotype), February 19, 1939. 
Two specimens, remarkably differing in size. It seemed worth while to 
describe this peculiar type of the genitalia somewhat more elaborately. 
As said before we met a similar type in the Cosmopterigidae. Their highly 
specialised character suggests a progressed development along singular 
lines, which supports very well the separation of the Scaeosophidae from 
the Oecophoridae. 
