466 
IRIDREPANA. By W. Warren. 
sadana. 
adelpha. 
fulva. 
flava. 
postica. 
ferrea. 
melliflua. 
argentistri- 
ga. 
quadripunc- 
tata. 
the space between them, from the centre of the hind-margin to the apex, is dark brown; on the discocellular 
2 light dots; at the distal margin a brown subapical spot, inside with black lunulae. Hindwing with a straight 
reddish-yellow line behind the first quarter, a yellowish-red dentate distal line of small crescents and a subter¬ 
minal row of black dots; at the lower cell-angle a dull brown mark. Under surface yellow, the distal line and 
the subterminal line marked below the costa. Face and legs brownish, tegulae and patagia wdntish; thorax 
and abdominal dorsum yellow. 3 from the Kumasi River (type) and 1 from the Oetakwa (New Guinea). 
Type in the Tring Museum. In this species the distal margin of the forewing is straight and the anal angle 
angular. 
1. sadana Mr. (49 c). Forewing yellow; a fine dark proximal, distal, and subterminal line composed 
of small crescents; an orange spot in the cell and one at the end of the cell; at the lower cell-angle a rounded 
violettish-grey spot on which there are two darker ones, edged with dull brown; indistinct subterminal dark 
spots two of which are conspicuous below the apex, since they are situate on a chestnut-brown cloud at the 
distal margin. On the hindwing the 3 lines are undulating. <$ considerably smaller than the $ (in the plate 
the sexual marks are confounded). Sikkim (North India). 
I. adelpha Swh. (49 c). Smaller and paler than sadana, with a more strongly falcate apex of the forewing. 
Kliasia Hills (Assam). 
I. fulva Hmps. (49 d). bright yellowish-red; head and collar bright rust-coloured; forewing with 
2 dark spots behind the lower cell-angle in the space between veins 2 and 4; fringes dark brown, with grey 
tips. Hindwing unicoloured yellowish-red. The $ is much browner. Sikkim. 
I. flava Mr. (49 c). Forewdng bright yellow, in the marginal area deeper; proximal line grey, 
undulating, excurved between veins 2 and l; at the cell-end a black spot; distal line blackish, undulating, of 
small crescents, above vein 3 bent inwards, then bent upwards to 4 and 5, then vertical to 3, along wiiich it 
extends again distally, almost touching itself above 3; a subterminal, dentate chain of grey crescents and another 
one of dark grey lunulae, the 3 uppermost of which are filled with wdrite; marginal area above vein 6 blackish. 
Hindwing similar, at each cell-end a black spot, behind it 3 rows of small crescents between the veins. Under 
surface yellow; the two lines of the forewing are jet-black, the distal line oblique to the apex. Sikkim, Assam. 
I. postica Mr. (= xanthoptera Hmps.) (49 c). Head, thorax, abdomen, and forewdng brown, the 
basal and anal-angular areas of the forewing remaining yellow; lines brown; the proximal line curved, indistinct; 
the distal line oblique from the apex to the centre of the hind-margin; a submarginal row of small spots. Hindwing 
pale yellow with a curved dark proximal and distal line and small subterminal spots. At the cell-end of both 
wings a white dot. Sikkim. Naga and Khasia Hdls (Assam). 
I. ferrea Hmps. (49 f). Fore wing chestnut-brown with a violet reflection; indistinct proximal and 
distal bands of dark brown spots and a submarginal row of quite indistinct spots; at the distal margin below 
the apex a dark spot and a white dot bordered with dark at both ends of the discocellular. Hindwing similar. 
Ceylon. 
I. melliflua nom. nov. (= crocea Hmps. nec Leech) (49 d). Wings honey-coloured, without dark markings, 
but all the usual lines and the spots are silvery, the fringes yellow. The $ is larger and somewhat paler yellow 
than the <$. New Guinea. 
I. argentistriga Warr. (49 c, as angustistriga). Forewing pale yellow, along the distal line and towards 
the apex and distal margin with a light red-brown hue; from the costal margin before the apex to the centre 
of the hind-margin a straight red-brown oblique line; the subterminal line is formed of irregular brown crescents, 
the latter above the centre distally with small silvery white lunae, distally angular on vein 7, and inwardly 
curved behind the cell towards the distal line; fringes reddish yellowish-brown. Hindwing wdthoutyellowish- 
brown shading; the oblique hne of the fore wing crosses it near the base; a much finer straight distal line; at the 
lower cell-angle a silvery white spot situate on a round patch of deeper yellow scales; fringes yellow. Under 
surface pale yellow, the forewing tinted yellowish-red, the oblique line marked above vein 2. Face, palpi, 
forelegs, and antennae yellowish-red; thorax and abdomen pale yellow, abdomen with a brownish-yellow belt 
connecting the basal lines of the hindwing. Described from a single $ from Mt. Mulu (North Borneo). Allied to 
postica Mr. 
I. quadripunctata Wkr. (49 e). Head red-brown; thorax and abdomen reddish-grey, like the forewing; 
the proximal and median lines are close together, in the centre of the wing, formed of small crescents, dentate, 
the median line only recognisable above the centre; at each end of the discocellular one black dot; distal line 
blackish, formed of small crescents, dentate, angidar above vein 6, where we notice an erect black mark; 
subterminal line undulating, light between dark shadows. Hindwing brown with a proximal, distal, and 
subterminal line. Beneath the black dots and the postmedian line are indicated. Described from Borneo, 
occurring also in the Khasia Hills in Assam. Distinguished from diluta (49 e) by the smaller size of the 
and the darker grey colouring. Hindwing brown. 
