MICROLEPID OPTERA OF NEW GUINEA 
23 
fuscous and fulvous scales, terminal segment fuscous. Antenna pale 
brownish-ochreous, apical half fuscous. Thorax fulvous-greyish. Abdomen 
grey, venter bright ochreous. Legs fuscous, posterior fuscous-ochreous. 
Fore wing broad, ovate-truncate, costa strongly gradually curved to 
beyond middle, slightly sinuate posteriorly, apex little rounded, termen 
sinuate, almost vertical above, obliquely rounded beneath. Pale sandy- 
ochreous, anterior third of costa with a streak of fuscous-grey suffusion, 
costal edge suffused with fuscous-grey throughout; a cloudy, ill-defined 
fuscous-grey suffusion along dorsum from before base, dilated posteriorly 
so as to occupy lower half of wing, less distinct towards termen, trans- 
versely strigulated with darker fuscous-grey, this strigulation especially 
distinct along dorsum; a suffused dark fuscous transverse mark on lower 
edge of cell ; anterior half of wing with transverse, slightly curved rows of 
rather sparse small, dark fuscous, short strigulae; denser dark fuscous 
dotting in tornus, and before and along lower half of termen, reaching 
to vein 6 above; some 3—4 dark fuscous points below 4 / g of costa (instead 
of a costal patch). Cilia fulvous along costa, dark ferruginous-blackish 
along upper half of termen, pale fulvous with a dark brown antemedian 
fascia elsewhere. Hind wing with veins 3 and 4 soldered towards base 
(appearing short-stalked), 5 closely approximated; rather light greyish- 
fulvous with bronze gloss; cilia pale fulvous-greyish with a pinkish-grey 
antemedian band. 
Ostium cup-shaped. Limen broad, rounded, with small projections at 
the sides, and an oval opening in middle. Bursa erect, signum dagger- 
shaped (Slide No. 500 D). 
Mountain pass at the foot of Wilhelmina Top, 3800 m, September 2, 
1938. One specimen. 
Diadelomorpha Diakonoff, 1944 
Diadelomorpha Diakonoff, 1944, Treubia, vol. hors eerie, p. 47. 
The species described below closely agrees with the unique, (probably 
abnormally developed) specimen of the typus generis, D. undulans 
Diakonoff, except for two features : vein 7 in the fore wing to termen, 
not to apex, and the thoracic crest absent. The description of the present 
genus must be extended consequently. The male specimen of the following 
species reveals, furthermore, that the genus has no affinity with the 
group of Peronea, as was supposed before, but is a relative of Cacoecia, 
but differing by the porrect palpi, and the stalked veins 6 and 7 in the 
hind wing. From Cnephasia it differs structurally by the peculiar shape 
and the median costal tuft of cilia in the fore wing of the female, and by 
the long palpi. Syndemis curvosa Diakonoff, 1941, from Buru (Moluccas), 
belongs also to this genus. 
Key to the known species of Diadelomorpha 
1. Fore wing with transverse fascia absent undulans Diakonoff 
Fore wing with transverse fascia always discernible, sometimes interrupted 2 
