264 
OEDEBASIS; TAVETA; POLYDESMA. By M. Gaede. 
cripennis. 
syrhi.r. 
eiicosmia. 
coUuiri.r. 
otiosa. 
waelhroecki. 
as indistinct. From centre of costa almost to the apex a large brown triangular patch, enclosing a pale spot. 
Hindwings pale ochreons brown with innumerable narrow dark lines. 35 mm. Madagascar. 
2. Genus : Oeclebaisis Hm^is. 
Palpi obliquely erect. Erons with small tuft. Antennae of almost simple. Thorax anteriorly and 
l^osteriorly with a small tuft. Tibiae well haired. Abdomen with tufts. Forewings narrow, with lobe at base 
on inner margin. Hindwings narrow, costa with lobe at base. Neuration normal. On hindwings vein 8 separates 
near base of cell, proceeding however close next to it. Only 1 species. 
O. ovipennis Hmps. (33 a). Body and forewings pale reddish brown, dusted with black and with black 
spots on costa. Antemedian line undulate, indistinct, proximally with a black spot in cell. Claviform stigma 
large, black. Orbicular and reniform stigmata large, elliptical, with black outlines. Postmedian line boldly 
dentate, widely excurved behind the cell, vertically downwards from vein 2. Submarginal line undulate, whitish. 
Hindwings pale brown. In 9 hmer margin of forewings is white in centre and upwards to submedian fold. A 
white spot at end of claviform stigma and from inner edge of the reniform stigma to the costa. Submarginal 
line white. Wings wider. 22— 34 mm. Delagoa Bay, Seychelles, Aldabia. 2 $$ from Mauritius are much paler. 
Forewings white, blackish at base to close to reniform stigma. Costa pale brownish. Antemedian line black, 
dentate. Claviform stigma short, obese, black. Orbicular stigma white and punctiform, reniform white with 
dark outline. Postmedian line as in type form. Marginal area brownish. — In the typical G of ovipennis the dark 
outline of the basal area extends obliquely in an almost straight line. In a in the British Museum from 
Madgascar on the other hand, this outline is almost exactly like that of the 9$, as it is much more vertical 
towards the costa and then incurved. Also the size of this G (32 mm) more closely resembles that of the 
3. Goniis: Fawe. 
Palpi long and erect. Hind tibiae with spurs without long hairs. Abdomen with tuft on first 3 segments. 
Wings wide with undulate margin. On forewings vein 2—4 arise near lower angle of cell, vein 5 a little above, 
6 and 7 from upper angle, 8—10 form an appendicular cell. Neuration of hindwings is similar. Type: syrinx Fawc. 
T. syrinx Fawc. (42 a). Body and wings pale fulvous. Forewings with double pale undulate ante¬ 
median line, interfilled with dark and with indications of anterior parallel undulate lines. Postmedian line 
narrowly black, dentate, with white inner edge, surrounded by a dark band, obliquely inwards below vein 4. 
Submarginal line whitish, regularly dentate. Hindwings with 2 ])arallel black dentate median lines, the inner 
one of which has an inner white edge. Sidjinarginal line as on forewings. 36 mm. Described from a pair from 
East Africa. 
T. eucosmia Hmps. (33 a). Body and forewings darker fuscous than syrinx. Basal half below the cell 
whitish with black-brown scales. Median area below cell and distally to vein 6 leaden grey. Postmedian line 
brown, imlistinct, undulate, double anteriorly. Reniform stigma with white surround, constricted in centre, 
an oblique undidate line jn'oceeds from it to inner margin. Postmedian line double, black, with white outer 
edge, angidated outwards below vein 7 and 4, dentate. The submarginal line is similar to that of syrinx. Hind- 
Avings grey-broAvn, black below the cell and dusted with white. Postmedian line black, double, undulate, edged 
outwardly with white near the inner margin. Submarginal line white, undulate. 35—38 mm. East Africa. 
4. Genus: l®<>ly€lesiiia Bsd. 
Paljh erect, slender. Abdomen with few and insignificant tufts. Tibiae without spurs. Fore tibiae 
with long hairs in (J. Forewings with long hairs below in cell, hindwings with long silky hairs at base. TyjDe: 
collutrix G. 
P. collutrix Geyer (= umbricola Bsd., sagulata Wllyrn., laudula Gn., boarmioides Gn., scriptilis (?jz., 
mastrucata Fldr.) (33 a). Reddish brown. Forewings with black lines, that commence at black costal dots. 
Antemedian line indistinctly dentate, excurved in centre. Median line parallel to it. Reniform stigma with 
black edge. Postmedian line obliquely outwards, then incurved to lower angle of cell and continuing close to 
median line. Sidmiarginal line pale, dentate, with dark diffuse inner edge. Hindwings with dark inner band 
and narrow median line. Submarginal line as on forewings. 40—46 mm. West, South and East Africa, Mada¬ 
gascar and as far as Formosa. 
P. otiosa Gn. {— brevipalpis Wkr., determinata Wllgrn.). The species was dealt with and illustrated 
in Vol. 3, ]i. 367, pi. 67 g. Smaller and paler than collutrix, otherwise very similar. On underside only the costa 
of hindwings is dark, almost the entire hindwing of d' is covered with silky ochreons yellow hairs. 40 mm. 
South West Africa and distributed through India, also occurring in China. 
P. waelhroecki Strd. Body and wings ochrous yellow. A somewhat paler median band on foreAvings, 
intersected by an interrupted dark dentate line. This band is also continued someAvhat on hiiKhvings. Besides 
there are a feAv dark ochreons yelloAV dentate bands. At disco-cellular of foreAvings tAvo sharply defined dots 
