464 
IRIDREPANA. By W. Warren. 
corf i cat a. 
albonotata. 
ochrea. 
falcipennis. 
fulvata. 
fasciata. 
ol ivacea. 
semirufa. 
dents along the margin whitish; marginal line black, fringes yellow; on each angle of the cell a black dot. 
Hindwing similar, without a proximal line, costal area broad whitish; under surface yellow; both wings 
exhibit the distal lines and the cellular spots blackish. Face brown, thorax like the wings. Described from a $ 
taken by 0. Moller in Sikkim in 1888. 
D. corticata sp. nov. (49 a). Forewmg brownish fawn-coloured with an olive tint, finely speckled 
with black. The oblique .distal line is light, bordered with blackish, extending from two thirds of the hind- 
margin to the apex before which it is distally bordered with blackish; at the cell-end a black dot above a 
light spot. Hindwing with a whitish costal-marginal area; a dark antemedian band is edged with blackish 
lines and encloses an oval grey spot with an angular dark mark in the centre. Under surface yellow, on both 
wings black cellular dots. Head dark brown, thorax and abdominal dprsum brown, ventrum yellow. 1 A 
from Darjeeling (Moller). 
32. Genus: Irfdrepana Swh. 
It differs structurally from Albara, as follows: in the forewing veins 10 and 11 are stalked, like 7. 8, 9; 
vein 10 anastomoses with 8, 9 and forms an areola, 11 rises from the centre of the areola and 10 from its end; 
middle tibiae without spurs, hind tibiae with but one pair of terminal spurs; antennae in both sexes bipectinate, 
in the $ shorter. Type: I. albonotata Mr. 
I. albonotata Mr. (— ochrea Btlr. A) (49a). Foiewing chrome-coloured, costal margin dark; an 
indistinct proximal undulating brown line; a dark spot in the cell and 2 silvery white spots at its ends, the 
spot at the lower angle on a round reddish-yellow halo; the distal and marginal lines are indistinct, below the 
apex a brown marginal spot behind which the fringe is reddish-yellow; all the markings strewn with small 
silvery scales. Hindwing at the hind-margin with traces of a proximal, a distal, and a subterminal line. - 
The form ochrea Btlr., in my opinion, only refers to AS which in their fresh state are invariably of a deeper 
colour than the $$. Khasia Hills (Assam); Mights, Madras, Ceylon, Malay Peninsula, Borneo, Bali, Hainan. 
I. falcipennis sp. nov. (49a). Both sexes rather much larger than the preceding one; the yellow in 
the S paler; apex of forewing much more produced; at the lower cell-end on oval, yellowish-reddish-grey spot 
containing a small black spot between the bases of the veins 3 and 4; the dark subapical shadow is narrow. 
1 couple from Bhutan. 
I. fulvata Snell. (— lunulata Btlr.) (49 a) resembles albonotata Mr., but the lines are more distinct, 
particularly the distal one which is dentate, composed of small crescents and bending round behind the cell; 
the spot at the lower cell-angle of the $ is composed in its upper end of an oval grey spot; the black lunulae 
in the brown terminal shadow below the apex are more intensely marked and behind them there are small 
white spots. Palpi, face, and antennae brown. The AS seem to be more deeply coloured than the $$, as in 
albonotata, and the spot at the lower cell-angle is brown and triangular. Snellen’s fulvata originates from 
Java, Butler’s lunulata from Alu (Salomons Is.); also from Goodenough Is., Rock Is., and Guadalcanar 
(Salomons Is.), and from New Guinea. 
I. fasciata Warr. (= fulvata ab. fasciata Wan.) (49 a) differs in the median area between the proximal 
and distal lines being almost entirely filled with red-brown, the basal and marginal areas remaining yellow; 
the white dot at the upper cell-angle is distinct, the spot at the lower angle with a dark marking obliquely below 
it. 2 $$ from the Upper Aroa River and Biagi, Mambare River (New Guinea); 4 AS from the Upper Aroa 
and the Upper Setekwa (New Guinea) resp. from Goodenough and Rock Is. 
I. olivacea Warr. (49 d). A forewing dull olive brown without any trace of yellow, the markings as 
in fulvata, but the median band darker; under surface yellow except the cellular spot; the distal line at the costa 
and the fringes are olive brown; head, thorax, and abdomen olive dark brown. The only $ which can be placed 
to these AS exhibits the distal halves of the wing traversed by bands of dark brown crescentiform markings, 
those near the stigmata being the darkest; the two white dots at the angles of the cell are distinct. The SS 
from the Upper Aroa River in New Guinea; the $ from Goodenough Is. 
I. semirufa sp. nov. (49 b). Forewing deep yellow, the lines and markings exactly as in olivacea Wan. 
Costal margin in the basal half grey, in the cell a brown, dark-centred spot, moreover at the upper end of the 
discocellular, at its lower end a white spot encircled by brown, with a brown cloud below it; the space between 
the two lines is clouded greyish dark brown, extending along the costal margin, to the apex; a subapical brown 
cloud along the distal margin, in front of it 4 black small crescents with white tips. Hindwing quite yellow, 
with a proximal and distal undulating line and the subterminal row of spots being distinct; at the lower cell- 
end a long white spot. — In the typical form from the Upper Setekwa the distal margin of the forewing is 
almost straight and the anal angle sharply rectangular; in the specimens from the Oetekwa the apex is 
