LEUCOMA. By Dr. E. Strand. 
311 
finely spotted owing to minute silvery scales; costa of forewing and fringes of both wings faintly flesh-coloured. 
Under surface jmrely white, with silvery scales as above. Expanse of wings: 32 mm. Singapore. — sikkima silckima. 
form. nov. (39 b) from Sikkim, Darjeeling, is distinguished by the absence of the discocellular spot. — ,,L. sub- 
marginata“, inclusive of its forms mentioned above, is besides reported from Sandakan, Pulo Laut, Selangor, 
Fergusson Island, New Guinea, New-Ireland, New Britain, Chusan Island, Itchang in West China, the Andamans 
and several other Indian localities. — Larva pale brown with long, dispersed, plain and spatulate hairs; a dorsal 
tuft of long black hair on the second abdominal ring; subdorsal and sublateral black lines; the first and 2nd 
abdominal rings anteriorly banded black, the second also with a yellow band. Pupa green with black spots on 
each side of the thorax, somewhat flattened and curved, suspended in some netted threads. 
L. egerina Swinh. (39 c). Purely white. Forewing with a brownish costal band and similarly coloured egerina. 
veins interrupted by silvery spots; the latter form regularly undulate transverse bands across the whole wing. 
The discocellular spot brown. Hindwing without any marking. All the fringes white, in some places brownish. 
Allied with L. snbmarginata Wkr., but different by the absence of the 2 brown frontal spots and by other diffe¬ 
rences. Expanse of wings: 32 mm. Singapore. 
L. cygna Moore (= cymbicornis Btlr.) (39 d) in Eastern Asia towards the south traverses the northern cygna. 
frontier of the Indian region and is reported from Ceylon and the Andamans (comp. Vol. II, p. 124). 
L. saturnioides Snell. (42 k). $ wings for the greatest part unsealed, but there is a marginal band formed satnrnioi- 
of dirty whitish and darker scales, being quite narrow in the forewing at the costal and posterior margins, broadest de 
in the anterior half of the border, narrowest in the area 3, whilst the marginal band of the forewing attains its 
greatest width in the areas 2 and 5. Body with dirty whitish and interspersed darker scales. Expanse of wings: 
37 mm. Celebes, Singapore. 
L. marginalis Wkr. (39 c). S'- purely white; head, except the frons and palpal tips, brown. Wings marginalis. 
with lustrously scaled patches and with faint grey streaks along the margin; fringes dark grey. Forewing with 
a greyish hue in the costal area towards the apex. Lengtli of body: 10 mm. Expanse of wings: 26% mm. Sara¬ 
wak, Singapore, Kuching. It flies from October to December in Luzon. — Larva 4 cm long, feeding on Mangifera 
and Terminalia sumatrana, densely covered with snow-white and lustrous silvery hair, feet and body green, 
head white and black. Pupa in a very thin web, green with white markings; it rests for 7 days. 
L. mimacea Wkr. (39 d). S’- light brownish-yellow, beneath white. Head purely white, with a broad, mimacea. 
brown band between the antennae. Thorax in front purely white, behind, as well as the forewings with numerous 
pale and ochreous stripes. Fringes reddish. Hindwing anteriorly white. Length of body: 14 mm. Length of 
wings: 32% mm. Sarawak. 
• 
L. flavescens Moore (39 c). S- yellowish-white, frons brown. Antennae light brown, with a white flavescens. 
shaft. Upper surface with silvery white reflecting scales, margin faintly fawn-coloured. Palpi white with brown 
tips. Legs whitish. Expanse of wings: 30% mm. — Southern Andamans, Nilgiris, Travancore, Philippines, 
where the species flies from November till February, in May and July. Length of wings: S 16 to 18 mm. — 
sericea Moore (39 c). <$: purely white, frons brown. Antennae light brown with a white shaft. Upper surface sericea. 
with lustrous silvery white hair; the costal margin of the fore wing is brown, a black spot at the cell-end, the 
border and fringes of both wings fawn-coloured. Legs white, the anterior and middle legs with black streaks. 
Palpi light brown with black tips. Expanse of wings: 27% mm. Southern Andamans. 
L. intacta Wkr. (39 d). $ (according to Swinhoe, the specimen described by Walker is in fact a $, Intacta. 
not a S as stated), silvery white. Head with an ochreous band between the antennae. Palpi ochreous, not 
longer than half the width of the head. Antennae short, very broadly combed. Thorax in front with an obliquely 
rising tuft of scales. The abdomen does not reach to the anal angle. Forewing pointed with a convex and oblique 
border. Expanse of wings: 39 mm. New Guinea. 
L. niveata Wkr. $: white, palpi beneath light yellow, not projecting beyond the head. Antennae niveata. 
yellow, with moderately long combs. Tarsi, anterior femora above and anterior tibiae yellow. Wings lustrous, 
forewing elongate, slightly convex, very oblique. Expanse of wings: 39 mm. Makiam, Celebes. 
