236 
ROESELIA. By Dr. M. Draudt. 
biconigera. 
placens. 
deglupta. 
leucogram- 
ma. 
bifiliferata. 
polyodonia. 
micans. 
canescens. 
argyraspis. 
iinilinca. 
R. biconigera spec. nov. (32 c) shows in the £ beneath on the forewing a deep, circular excavation in 
the cell on the border between the middle and distal third. Head, thorax and forewings white, strewn with 
silvery grey. Collar with a brownish band. The forewing shows at the base and middle of the costal margin 
one blackish-brown, triangular spot each; of the other marking there is mostly little to be noticed; in a distinctly 
marked £ there is a curved antemedian and a feebly dentate posterior transverse line which, as usually, encircles 
the cell in a bow; in the lower half, at its proximal side, there runs a sharply dentated line; the apical third 
of the white costal margin with 3 small black spots. Marginal area and undulate line grey-brownish. Hindwings 
light grey. Expanse of wings: 15 to 17 mm. Type from Espiritu Santo in the Coll. Dratjdt; besides from Costa 
Rica, Colombia (Fassl). 
R. placens Schs. (32 c). The silvery-white forewings are in the costal halves and close in front of the 
margin dusted red-brown, and exhibit postmedian and antemarginal transverse lines of a leaden colour; in and 
below the cell-end there is a red-brown scale-spot, above it a triangular costal-marginal spot. Hindwings brown. 
Expanse of wings: 18 mm. Costa Rica. 
R. deglupta spec. nov. (32 c) differs from placens by the greater extent of the red-brown dusting of 
the costal margin, so that only the proximal-marginal part below the submedian fold remains purely white; 
behind the cell the brown costal area is bordered by a broad, olive-grey crescentiform or reniform band, likewise 
extending to the submedian fold. Marginal part of the costal margin greyish-white with 4 small black costal 
spots; apex cut off by an oblique white band. Border otherwise dusted red-brown; the cloudy grey undulate 
line projects in the middle roundish towards the margin; as the lower border of the white marginal streak it 
extends in a pointed tooth close to the margin. Hindwings brownish. Expanse of wings: 19 mm. 1 $ from 
the Songo (Bolivia) in the Coll. Fassl. 
R. leucogramma Dogn. exhibits in the female an oblong excavation below the upper subcostal vein. 
Forewings white, dusted reddish ochreous, and strewn with black as far as in front of the border; black ante- 
median and postmedian transverse lines being on the averted sides bordered with white, between them a faded 
median line, and before the margin an undulate line being distally bordered with white. In the cell before and 
in the middle small heaps of black and ochreous-yellow scales. Hindwings white, towards the margin yellow- 
brownish. Expanse of wings: 24 mm. French Guiana. 
R. bifiliferata Wkr. (= terulosa Drc.) (32 c) is a widely distributed and common species, recognizable 
by the silvery grey forewings exhibiting the costal margin dusted with a rusty colour and the double anterior 
transverse line turning at the proximal margin back almost as far as the base; the posterior transverse line 
is double, too; in front of it there is another dentate, black line; between it and the marginal line there are 
black vein-streaks. Head and collar are rusty brown. Extremely variable in size. Expanse of wings: 15 to 
27 mm. From Mexico, Costa Rica, Panama, Colombia and Brazil. 
R. polyodonta Schs. (32 c) greatly resembles the preceding, but it has a white head and collar; the 
forewings are white, uniformly dusted and the median line is much longer, almost digitiformly dentated; the 
antemarginal line touches the margin at 3 places. Fringes speckled black and white. Hindwings white, at the 
margin brownish-grey. Expanse of wings: 20 to 22 mm. From Mexico to French Guiana. 
R. micans Hmps. (= fasciata Rothsch.) (32 c) is silvery white, scantily strewn with black, with a 
triangular black spot at the base and a square one in the middle of the costal margin. The transverse lines 
indistinct; an undulate antemarginal line. Expanse of wings: 18 to 24 mm. Colombia. Bolivia. 
R. canescens spec. nov. (32 d) resembles micans, with a little broader and rounder wings; the ground¬ 
colour of the forewings is a delicate bluish-grey, scantily strewn with brown, the marking quite similar, all the 
transverse lines more distantly remote, the costal spot triangular; the small heap of scales is not situate in it, 
as in micans, but below its apex. Hindwings brownish-grey. Expanse of wings: 22 mm. 1 $ from Orosi (Costa 
Rica) in the Coll. Fassl. 
R. argyraspis spec. nov. (32 d) is a tiny, silvery-white insect; the forewings are tinged greyish-brownish 
towards the margin, and exhibit at the base and middle of the costal margin one blackish-brown, triangular 
spot each like in the preceding; the scaly spot strewn with silvery scales and touching the apex of the triangular 
spot, in the middle of the cell, is very large, round, jet-black, and exhibits silvery scales, being arranged con¬ 
centrically to its margin, so that the impression of a ring is created; the indistinct postmedian line encircling 
the cell grows thicker below the submedian fold and form a V with the thick black median line touching it 
at the proximal margin. Costal margin spotted black; undulate line of the usual shape, smoky grey. Hindwings 
towards the margin with a faint brownisch hue. Expanse of wings: 12 mm. 1 <$ from the Upper Rio Negro 
(East Colombia) in the Coll. Fassl. 
R. unilinea Schs. (32 c) is a small species very easily recognizable by the blackish-brown postmedian 
band; the forewings are otherwise silvery white, at the margin dusted brown, with an undulate antemarginal 
line and a dark spot at the base of the costal margin. Expanse of wings: 16 mm. Costa Rica. 
