MICROLEPIDOPTERA OF NEW GUINEA 
27 
Syndemis plumosa spec. nov. (figs. 228, 229) 
$ 19—22 mm. Head white, vertex and collar with a longitudinal median 
dark grey streak. Palpus white, a large median bright l'ulvous spot, finely 
edged below with blackish. Thorax whitish, slightly mixed with blackish 
and fuscous, a large suffused median dark fuscous-grey spot, a subapical 
irregular black transverse band, apex whitish. Abdomen ochreous- 
whitish, suffused with grey above. Legs creamy-whitish, anterior tibia 
and tarsus dark grey, light-ringed, median tibia and tarsus whitish with 
grey spots. Fore wing broad, little dilated, costa strongly curved anteriorly, 
straight posteriorly, apex little rounded, termen scarcely concave above, 
rounded beneath, moderately oblique. White, irrorated and striped along 
veins with light grey, markings blackish, partially slightly suffused with 
orange-ochreous. Basal patch large, interrupted in middle of disc, suffused 
with dark grey posteriorly, faintly touched with ochreous, strigulated on 
costa; edge of patch narrow, black, very outwardly oblique, from costa 
to above fold, interrupted in fold, still more oblique below fold, reaching 
to middle of dorsum; small black longitudinal streaks: on base of wing 
above fold, and beyond base below fold; a slightly sinuate series of some 
seven moderate elongate longitudinal black patches on veins, costal patch 
subquadrate, touched with ferruginous, dorsal patch at 2 / 3 , longer than 
others, second patch rounded, suffused with grey, third and fourth patches 
slightly suffused with orange-ochreous; three blackish irregular streaks 
between veins 11—8, from upper edge of cell to costa, strongly suffused 
with dark grey, and slightly with orange-ochreous, each streak ending in 
a suffused triangular dark grey dot on costa; a point on lower angle of 
cell and a short streak on fold above dorsum, black; numerous interrupted 
black streaks and dots between terminal veins, becoming thicker, and 
more distinct towards tornus; apex and terminal edge slightly suffused 
with dark grey; costal edge slightly suffused with ferruginous. Cilia white, 
apical third with suffused light grey spots, basal third with a row of black 
dots, a blackish patch in tornus. Hind wing whitish, touched with ochreous, 
apex suffused and marbled with greyish; cilia whitish, touched with 
ochreous, a greyish antemedian line around apex. 
Limen narrow at the sides, much dilated in middle. Ostium shallow, 
funnel-shaped, strongly sclerotized, with a semitubular elongate-ovate 
appendix below. Colliculum, a piece of strong chitine. Cestum long, 
narrow, somewhat tortuous, not dilated below, not reaching bursa. 
Signum long, narrow, sickle-shaped, smooth; capitulum large, obliquely 
clavate (Slide No. 431 D, holotype). 
Mist Camp, 1800 m, January 17, 1939. Moss Forest Camp, five km 
northeast of Lake Habbema, 2800 m, October 19, 1939, October 26, 1939 
(holotype). Three specimens. Shows little affinity with other species, 
except for identical neuration. Also the genitalia are of a somewhat 
different type. By superficial appearance suggests a Peronea. 
