NEDUSIA; PSAMATHIA. By M. Gaede. 
1143 
rectangularly bent median line. Besides a faded brown submarginal and marginal line. 20 mm. Mexico. - 
The hindwing in both species thus does not quite agree with that of the typical species. 
M. comprimaria Geyer (172 g) may be wrongly placed here. Body and wings brownish ochreous. Fore- 
wing broadly yellowish brown at the costal margin. Both wings with two double black submarginal undulate 
lines which are filled with white on the hindwing. The latter is angled above vein 6. 28 mm. South America. 
4. Genus: Nedusia Hbn. 
Antennae of $ short and stout, laterally flattened, palpi short. Forewing broad, apex pointed. Vein 
2 far basad, 3 and 4 from the lower cell-angle, 5 from the upper angle, 6 + 7 stalked, 8 + 9 on a long stalk. 
Hindwing with an obtuse tail between veins 3 and 4. Veins 3+4 stalked, 5 above the middle of the cross¬ 
vein. 6 and 7 from the upper cell-angle. Type: mutilaria Hbn. 
N. mutilaria Hbn. (170 a). Forewing greyish brown with a violet reflection. Interior line only marked 
by a black dot below the costal margin. Exterior line of dark brown dots, angled at veins 6 and 4, then in¬ 
distinct as far as vein 2 and from there somewhat outward to the inner margin. Hindwing with a double ex¬ 
terior line from 3 / 5 costal margin obliquely outward, projecting far at vein 4, then inward again and continued 
parallel with the distal margin. A black spot at the little tail. 26—30 mm. Venezuela, Guiana; the specimen 
figured originates from the surroundings of Blumenau in Sa. Catharina. — cuticulata Gn. (173 b) is hardly a 
different species. Ground-colour dingy white, the lines still more indistinct than in the typical form. Venezuela, 
Surinam. — obliteraria Wkr., according to the kind information of the British Museum, is the same as cuticulata. 
N. castra Jones (172 g) is surely not correctly placed here by the author, perhaps allied to Lophopygia 
griseata Warr. (172 h). Body and forewing brown, striated dark brown. Interior line dark, outward to the lower 
cell-angle, vertical as far as the submedian fold, then inward, somewhat white before it in the cell. Exterior 
line straight in the figure, according to the description excurved from veins 8 to 2, then downward to the inner 
margin. Marginal area lighter from the costal margin to vein 4. Hindwing of the same colouring. Interior and 
exterior lines parallel, dark, rectangularly broken in the middle. 28 mm. Brazil. 
5. Genus: Psamatliia Wkr. 
Antennae of $ pectinated. The scheme of markings quite similar to that of Nedusia, the neuration is 
also hardly different, except veins 6 + 7 of the hindwing being also stalked. Type: laticaudata Wkr. 
Ps. laticaudata Wkr. Dark reddish yellow with brown transverse striae. Lines brown. The interior 
one straight, more distinct on the hindwing than on the forewing. The median line is also straight, vertical, 
on the hindwing it extends only to the middle. Forewing with another exterior straight line, nearing the median 
one at the inner margin. A black subapical spot behind it. Hindwing with a pale marginal line which is edged 
with black in front. Two blackish spots in the tail. 20 mm. Venezuela. 
Ps. impunctata Warr. is very similar to laticaudata, but larger. Forewing without the black subapical 
spot behind the exterior line. (J 46—52 mm. Peru. 
Ps. parallelaria Warr. (170 a). Wings greyish yellow, striated dark. Costal margin of forewing paler. 
Interior line dark brown, straight, from + costal margin to % inner margin. Exterior line from 3 / 5 costal margin 
to % inner margin, slightly bent. Traces of a submarginal spot between veins 6 and 7 as in laticaudata. Hind¬ 
wing only with an exterior line, shortly and pointedly angled at vein 4. Two black spots on the tail. The $ 
with a still straighter exterior line. The apex of the hindwing projects somewhat more. 25 mm. Costa Rica. 
Ps. sordidata Schs. Wings grey, finely striated brown. Interior line of forewing fine, dark brown, turned 
outward. Exterior line strong, indistinctly edged outside with a lighter brown, slightly angled below vein 6. 
Submarginal spot also present. Exterior line of hindwing strongly angled at vein 4, divided by a lighter brown 
line. Paler behind it, whitish grey outside, except between veins 3 and 4, two black spots on the little tail. 
Similar but larger than parallelaria (170 a), the exterior line not straight. 29 mm. Costa Rica. 
Ps. placidaria Wkr. (170 b). Wings reddish yellow, finely striated brown. Lines blackish. Interior line 
of forewing fine, vertical. Exterior line very deeply undulated, composed of spots. Interior line of hindwing 
oblique, dentate, hardly recognizable. Exterior line double, sharply angled at vein 4, then more indistinct, 
parallel to the distal margin. — A few specimens from the Chiriqui exhibit a dark shadow behind the exterior 
line of the forewing above the inner margin. The light filling of the exterior line on the hindwing is very pro¬ 
minent, it is indistinctly edged with dark outside. These specimens are larger, they may be named: — fuscomar- 
ginata form. nov. 26—32 mm. Venezuela, Chiriqui, Brazil. 
comprima¬ 
ria. 
mutilaria. 
cuticulata. 
castra. 
laticaudata. 
impunctata. 
parallelaria. 
sordidata. 
placidaria. 
fuscomargi- 
nata. 
