NIGETIA; ROESELIA. By Dr. M. Draudt. 
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margin there is a brownish spot, behind which, indicated by black dots on the veins, the posterior transverse 
line runs, in some parts indistinctly double. Hindwings slightly smoky brownish. Expanse of wings: 15 mm. 
1 $ from Muzo (Colombia) in the Coll. Fassl. 
N. biconica Hm'ps. (32 a). Greyish-white, dusted brownish, with an antemedian and a median line, biconica. 
both of which proceed from triangular costal-marginal spots; a postmedian line of dots and an antemarginal 
undulate line. Expanse of wings: 12 to 16 mm. From Panama and Guiana to Brazil. 
N. sperata Schs. (32 a) is strewn brown and black on the white forewings and traversed by ante- sperata. 
median and postmedian rows of black dots; at the base of the costal margin and in the middle there are triangular 
brown costal spots; at the base and below the cell-end black dots, before the border and close at it 2 rows of 
blackish-brown spots. Hindwings white, towards the margin brownish. Expanse of wings: 16 mm. Costa Rica. 
N. artata Schs. (32 k) greatly resembles biconica, the head and thorax are of a purer greyish-white, urtata. 
the forewings more silvery white, coarsely strewn with brown and black, the anterior transverse line only indi¬ 
cated by small darker scales. Hindwings of a darker brown. Expanse of wings: 16 mm. Costa Rica. 
N. solvita Schs. (32 k) is grey, dusted brown and particularly in the basal part of an ochreous tint solvita. 
with 3 indistinct, finely dentate transverse lines and brownish shades in the middle and before the border being 
dusted darker brown. Hindwings greyish-brown. Expanse of wings: 20 mm. Brazil (Castro). 
N. biumbrata Schs. (32 k) is somewhat larger, thickly dusted reddish-brown and strewn with black; biumbrata. 
on the forewings the median line and median shade are absent, the posterior transverse line is in the shape 
of a broad band and faded; the anterior line is connected with a dark cellular and costal-marginal spot. Hind¬ 
wings brownish. Expanse of wings: 24 mm. Costa Rica. 
N. apera Drc. (= involuta Dyar, exposita Dyar , lagunculariae Dyar) (32 a) is grey, dusted brownish, apera. 
and strewn with black on the forewings; costal margin dotted brown; anterior transverse line curved, quite 
indistinct, the posterior one broken up into dots; an antemarginal dark line with small black vein-stripes. 
Hindwings whitish, towards the margin brownish. Expanse of wings: 16 mm. Distributed from California 
to Bolivia and Peru. — Larva flattened, in the colouring varying from white to reddish, haired blackish with 
a double dark dorsal line and 2 undulate lateral lines; on the 2nd and 3rd rings there is a white spot, bordered 
subdorsally with black. It lives on willows. 
N. bistriga Mschlr. (32 k) is very easily recognizable by the light creamy ground-colour, the forewings bistriga. 
being feebly strewn with red-brown; 2 straight red-brown transverse lines do not reach the costal margin; in 
front of the border there is besides an indistinct, curved line. Hindwing towards the apex brownish. Expanse 
of wings: 20 mm. Porto Rico. 
2. Genus; STigetia Wkr. 
This genus, established for the only species known, differs from the comprehensive following genus 
preponderantly by the upper median and lower radial vein of the forewing being petioled; sometimes also the 
middle one is con-petioled. The palpi are erect, the second joint, owing to its dense scaling, almost quadrangular. 
N. formosalis Wkr. (= melanopa Z.) (32 b). Head black; vertex, thorax, the 2 first abdominal segments, formosalis. 
and the forewings are white, the latter with a faint yellowish tinge and a black costal stripe and an oblique 
median band; an antemarginal band of a leaden colour, partly dusted brownish. Hindwings brownish-grey. 
Expanse of wings: 18 to 24 mm. United States, Carolina, Texas. 
3. Genus: Koeselia Hbn. 
In this genus, like in the preceding, all the subcostal veins are present; the upper radial vein of the 
forewing rises from below the upper cell-angle. The palpi are roughly scaled, mostly long, turned forward or 
downward, only in rare cases slightly upward; everything else like in Celama and Nola. Antennae of the $ 
in the American species doubly combed almost to the tips. 
R. intermedia Drc. (32 c). Like in the following species the £ exhibits beneath in the cell of the forewing intermedia. 
an oblong excavation. White, faintly dusted brownish, with 3 almost quadrangular, black, dusted silvery 
costal-marginal spots and a similar dusting before the posterior transverse line between the cell and proximal 
margin; before the border being dusted with red-brown there is an undulate line. Hindwings white, dusted 
brownish-grey towards the margin. Expanse of wings: 22 mm. Costa Rica. 
R. pernitens Schs. exhibits on the silvery white forewing, beside the costal-marginal spots, only one pernitens. 
line in front of the margin being dusted brown below the apex. Hindwings white, towards the margin brownish. 
Expanse of wings: 16 mm. Costa Rica. 
