288 
ORETA; CTENOGYNE; ANCISTRINA. By M. Gaede. 
argyrobap- 
fn. 
angustipen- 
nis. 
sulphured. 
glaucinoe. 
natalensis. 
sides, 11 close next to the areola, separate. In the hindwing likewise veins 3. 4. and 5 distantly separated. 
7 from 2 3 of the anterior edge of the cell anastomosing with vein 8 . 
D. argyrobapta Gaede (41 d). Body and wings above uniformly light brown. On the hindwing a dark 
brown line from the costal margin close at the apex to % of the hind-margin, continued on the hindwing to 
2 3 of the hind-margin. A proximal brown line above % of the hind-margin indicated on both wings. Distal 
line outwards with silvery scales, particularly at the apex. At the cell-end of the forewing a large brown spot, 
and at the end of the areola a small one. both slightly powdered with sdver. In the $ the lines and particularly 
the spots are indistinct. 17 to 19 mm. Cameroon. 
3. Genus: €>reta Wkr. 
Antennae bipectinate. Forewing with a produced apex. Neuration: vein 3 far before the angle, 4 and 5 
from the same place, veins 9 + 7 + 8 stalked from the apex of the areola, vein 10 at its edge a little backward. 
11 near the beginning of the areola. In the hindwing vein 7 from the centre of the anterior edge of the cell, 
vein 8 behind the cell nearing vein 7. Type: extensa Wlcr. from India. 
0. ailgustipermis Wrr. (41 c). Head reddish, body yellow with a brown transverse line. Forewing 
pale yellow, a little powdered with brown, with a pale brown marking. A spot in the cell prolonged to the 
apex. A line from the apex to before % of the hind-margin, a dark spot on the centre of the cross-vein with a 
brown line to its lower angle, where there is also a dark spot. Fringe brown, at the inner angle yellow. Hindwing 
pale yellow, with the continuation of the oblique line of the forewing. Before the distal margin a few dark 
dots. In the $ the apical line is stronger, almost the whole forewing is suffused with pinkish violet. On the 
hindwing the line is distally margined with pink of 3 mm width. Beneath the forewing is hued with brown 
within the apical line. The rest and a postcellular spot yellow. If the figured + in which the abdomen lacks 
the brown streak is correctly identified, the neuration is rather different from Indian Oreta. In the forewing 
vein 6 rises yet from the areola, veins 9 + 7 + 8 from its apex, 10 a little before its apex, vein lb freely from 
the cell. In the hindwing veins 4 + 5 stalked, vein 7 from % of the anterior edge of the cell then 
anastomosing with 8 . 25 to 28 mm. Niger, Spanish Guinea. 
0. sulphurea Hmps. Antennae of $ long bipectinate. Hind tibiae with 1 pair of spurs. Body yellow, 
head with a brown streak. Forewing pale yellow, striated red-brown. An oblicpie red-brown line at the apex 
to before + °f the hind-margin with an elliptical black spot at the distal margin close below the apex. In front 
of it at the apex and the fringe reddish-brown. Hinclwing pale yellow, at the base and the costal margin dusted 
with brown, with a double brown line at V 3 of the hind-margin. 28 mm. Gold Coast. 
0. glaucinoe Hmps. Body yellowish-white, head light red-brown. Forewing pale yellow, hued with 
violettish grey, with silvery scales and dark striae. A small black spot at the cross-vein and an oblique fine 
brown line distally edged with pale yellow from below the apex to the centre of the hind-margin. Tips of fringes 
black. Hindwing coloured the same with the continuation of the line to % of the hind-margin. Beneath 
blackish-brown mixed with red-brown, with the same oblique line. 32 mm. Gold Coast. 
4. Genus: Cteiiogyne Fldr. 
Antennae bipectinate. Fore wing with a pointed apex. Distal margin between veins 3 and 4 somewhat 
convex, above somewhat concave. Hindwing at vein 3 obtusely angular. Neuration of forewing: vein 3 far 
before the angle, 4 and 5 from the same place. Veins 7. 8 . and 9 separately from the apex of the very long 
areola, vein 10 almost from the centre of the anterior margin of the areola, vein 11 free. In the hindwing 
veins 3 to 5 as in the forewing, 4 from the centre of the anterior edge of the cell. 8 very near to it. 
C. natalensis Fldr. (carnea Saalm., geometroides Holl.) (41 d). Body and wings violettish-brown. 
Forewing with dark striae and obliquely distal darker brown faded spots, one each in the centre of the cell, 
below the base of vein 2 . at the cell-end, and at the distal margin between veins 4 and 2 . A dark notched 
line from before the apex to behind the centre of the hind-margin, excurved, and a similar one nearer at 
the distal margin. Hindwing with a distinct rusty brown line from the apex, where it is excurved, then straight 
to behind the centre of the hind-margin, distally bordered with white. x4 light dentate line from the apex to 
the anal angle. Both wings with a fine black discal dot. 40 to 45 mm. Sierra Leone, Gold Coast, East Africa, 
Madagascar. 
C. lytea Drc. is presumably the same species. 
5. Genus: Ajicistrinsi gen. n. 
Antennae bipectinate, hind tibiae with short terminal spurs, abdomen of relatively short and slender. 
Forewing at the costal margin uniformly bent, apex pointed, somewhat projecting. Below it the distal margin 
runs rectilinearly obliquely proximad, anal angle sharp, hind-margin almost straight. Hindwing at the costal 
margin and distal margin rounded. At the apex and between veins 3 and 4 obtuse angles, below it the distal 
margin is straight and almost rectangular to the hind-margin. Neuration as in Ctenogyne. Type: imma- 
culata sp. n. 
