420 
PSEUDELYDNA; SPHINGIFORMA; AITETA. By M. Gaede. 
xanthia. 
xanthiana. 
rufoflava. 
tula. 
diurna. 
■pralli. 
trigoniphora. 
hampsoni. 
teretimacula. 
spatulata. 
angustipen- 
nis. 
truncata. 
analoga. 
scripta. 
1. Hindtibiae of $ very short, the first tarsal segment very long and 
ston t. 
Ps. xanthia Hmps. Forewings orange-yellow. A black streak at inner margin before centre. A puncti- 
form outer line is indicated. A large black rectangular spot at apex and an oblique black streak at anal angle. 
Hindwings pale orange-yellow, widely red-yellow at margin. xanthiana Strd. has basal half of forewing suff¬ 
used with reddish yellow. 36—38 mm. Sikkim. Singapore. 
2. Hindtibiae of normally long, b o t h they and the tarsi with long 
hairs in and $ The only species has no similarity with xanthia , but 
would be far better classified with one of the following two Genera. 
Ps. rufoflava Wkr. Forewings brilliant yellow, red-brown at margin. Transverse lines pale greenish, 
the inner one oblique, somewhat impressed on the sudmedian fold, the outer line with short angulation below 
costa, then vertically. An elliptical spot on disco-cellular, bright red with orange-yellow edge. The brown 
marginal area incurved behind centre of cell and slightly also in submedian fold. Hindwings bright red and 
somewhat hyaline. In — tula Strd. forewing is apple-green; in diurna Swh. (31 f) yellow-red. 36—38 mm. India 
20. Genus: Sphingiforma B.-Bak. 
As the name indicates, the only species of the Genus resembles a hawk moth, even more so than 
rufoflava. Palpi are also slender, but the 3rd segment is somewhat longer. Hind tibiae and tarsi covered with 
long hairs, but not completely to the tips. On hindwings vein 3 + 4 stalked, 5 arising from near centre of 
disco-cellular. 
S. pratti B.-Bak. (40 g). Forewings grey-brown, dusky at inner margin, whiter around the costal spot. 
The double inner dark line is only distinct at inner margin, where it is vertical. A black dot at disco-cellular. 
From the costal spot an indistinct dark line proceeds, that is excurved in centre. Submarginal line from an 
obsolete dark spot, terminating at anal angle. Hindwings dark brown, q 50 mm. New Guinea. 
21. Genus: Aiteta Wkr. 
The species of this Genus also resemble hawk moths. The differences from Sphingiforma are insigni¬ 
ficant. Palpi are shorter. Central tibiae are more heavily hairy, hind tarsi not haired to the same extent to¬ 
wards the tips. On hindwings also vein 3 + 4 is stalked. Type: musculina Wkr. from India. In Africa 
this Genus is numerically well represented, but in the indo-australian territory there are many more forms. 
A. trigoniphora Hmps. (40 h). Forewings reddish brown with violet sheen. On costa a large dark olive- 
green triangle, the outer edge of which is excurved below costa, the point almost extends to anal angle. A 
dark submarginal line is indicated. Costa diffusedly white on both sides of the dark triangle. Assam, Sumatra, 
Philippines. —- hampsoni B.-Bak. (40 g) has a wider costal spot, that is indented behind the cell, thus at a 
higher spot than in name type, the lower end is very rounded. Described from New Guinea. - teretimacula 
E. Prout (40 h) resembles the preceding form. The indentation of the dark triangle is less pronounced, the 
angle of the submarginal line behind the cell is much more pointed outwardly. Hindwings paler in basal area. 
Several 2$ from Ceram. spatulata Schultze (== olivana Wilem. & West ) appears still paler than teretimacula. 
Costal spot is somewhat wider anteriorly, the indentation on outer edge is absent, so that it might be termed 
semicircular. Submarginal line boldly angulated behind the cell. Philippines. 
A. angustipennis Warr. Similar to trigoniphora (40 h) but smaller and with narrower wings. The ex- 
cur vation on inner margin more towards the centre, not close to base. Ground colour uniformly grey. The 
dark triangle with rose outline, not with white edge. One ^ from Engano. 
A. truncata Wkr. (40 h). Forewings pale brown. Inner line white with dark outer edge, oblique from 
y 4 of costa to centre of inner margin. An indistinct dark spot at disco-cellular. Outer line white, slightly 
excurved below costa, then vertically. Submarginal line very indistinct, similar to that of trigoniphora. Hind¬ 
wings dark brown. - analoga form. nov. (40 h) has in median area between the two lines, dark olive-green 
colouration like the trigoniphora forms. The lines converge somewhat at inner margin, the curve of the outer 
line is more pronounced; hindwings somewhat darker. Darjeeling. Type: 1 $ in the Berlin Museum. 35—40 mm. 
India and Ceylon. — Larva obese anteriorly, with small pointed pairs of warts at anal end. Reddish brown, 
anteriorly inclined to olive-brown, a fine pale dorsal line, edged with black lunules. Anterior segments with 
black lateral marks, after which a pale lateral line. 
A. scripta Wkr. ( = albotessellata B.-Bak.) (31 g). Easily recognisable by the white spot at anal angle 
of forewings. Forewings red-brown, darker at inner margin, delicately white at costa. From centre of base 
a fine white streak to submedian fold near the outer line. Inner line white, very oblique, straight. Outer line 
also white, oblique, almost to margin at vein 3, then sharply curved back and to anal angle. Hindwings dark 
brown. 44 mm. Aru Is., New Guinea. 
