SEWA; DIPRIODONTA. By W. Warren. 
447 
are rounded; the discocellular of the forewing is strongly angular; vein 6 from the flattened end of the sub¬ 
costal; 7, 8, 9 forked, 10 forked with 11. Type: M. mysticata WJcr. 
M. mysticata Wkr. (Vol. II, pi. 23 f). Head, thorax, and abdomen white; thorax and abdomen above mystic ala. 
yellow; wings semi-transparent white; forewing with a broad, somewhat irregular golden brown distal band 
from the subcostal to the hind-margin, enclosing a white stripe on the discocellular and short streaks on the 
veins 3 and 4; on the margin from the cell to the hind-margin 2 light lines; before the distal margin 2 dark 
bands forming small crescents and being more or less interrupted; on the hindwing the bands are twice distally 
dentate, near the hind-margin, and despatch towards the base along vein 1 a narrow stripe; before the distal 
margin a double line of small dark lunae; at the anal angle a yellow spot on which there are three small 
black spots. Sikkim and Penjab in North India. 
M. maia Leech (48 b and Vol. II, pi. 23 f). Distinguished from mysticata Wkr. by being somewhat larger mala. 
and the wings being more intensely scaled; on the forewing the narrow grey distal band of mysticata forms 
an almost fish-shaped spot on both sides bordered with yellow which is defined by black, and extends distally 
a tooth on vein 3, a shorter tooth on vein 2, and a black line on the submedian fold; on the inside there 
is on vein 2 a long spine, below vein 1 a jasper-red oval bordered with black; the discocellular is marked 
silvery white; from vein 8 to 3 a line of small yellowish-brown subterminal lunae; on vein 4 at the margin 
a yellowish-brown spot; fringes light yellow; hindwing with an olive-grey streak exhibiting a central lustrous 
line from the base along vein 1, being connected with an irregular yellow and grey triangle and meeting a 
double grey line from the centre of the costa; the latter line terminates in a tooth exhibiting a black spot 
above vein 3, and then extends undulating to the hind-margin; the latter and the proximal edge of the spot 
are marked with a line of small lustrous scales; the lower cell-end is marked with a silvery white spot, and 
vein 3 with a fine silvery line; before the margin a series of small grey and yellow subterminal lunae, extend¬ 
ing into the distal margin below vein 3; 3 small dark brown dents behind the distal line below vein 2; a round 
grey spot in the upper cell-angle; under surface with a diffuse grey spot behind the centre of the fore wing 
and a round spot in the upper cell-angle; both sexes show some grey small subterminal spots. Face, palpi, 
and front legs brown; thorax olive, with a bright yellowish-red tint; abdominal dorsum olive-brown, the anal 
rings lighter with ochreous markings. This species was described by Leech from Japan, but it also occurs in 
Sikkim and the Khasia Hills in Assam; the distal grey spot is here larger and broader than in the Japanese 
specimens. 
M. taiwana Wil. Forewing white with dark brown transverse markings; proximal line double, undu- taiwana. 
lating, angular below the costa; distal band undulating, angular below the costa, crossed by two white lines 
and traversed by the white veins; in the band near the hind-margin a black spot; from the cell-end almost 
to the distal angle a curved fawn-coloured streak; the subterminal band does not reach the costa; hindwing 
white; almost in the centre of the hind-margin two small black dots; in the anal angle a blackish-brown 
cloud; the dark grey distal band being crossed by two white undulating lines does not reach vein 4; fringes 
of both wings greyish, apically darker, before it small black lunae; under surface whitish; both wings towards 
the margin with lines of blackish spots; basal half of forewing with dark clouds; head, thorax, and basal seg¬ 
ment of abdomen white; face brown. 42 to 48 mm. Formosa. Described from two 
5. Genus : Sewa Swh. 
Distinguished from Macrocilix Btlr. by the antennae being thickened and flattened down, with small 
dense crooked dents; on the forewing veins 10 and 11 both come from the cell, 10 anastomoses with 8 and 9, 
forming an areola. Type: 8. orbiferata Wkr. 
S. orbiferata Wkr. (= insignata Mr., silicoides Snell.) (48 b, and Vol. II, pi. 23 g). Forewing white orbiferata. 
with a broad brown streak on the basal half of the costal margin; an irregular and indistinct dark proximal 
band; a broader distal band the centre of which is traversed by a white line; a subterminal interrupted band 
of spots; on the hind wing the distal band is obliterated towards the costa, expanded towards the hind-margin 
and traversed by a white line; in the anal angle a yellow spot and a subterminal and terminal row of small 
dark spots and streaks thereon. Originally described from Borneo, but the species also occurs in Sikkim, 
Bhutan, and Assam in North India, and in the Shan States in Burma; Leech also mentions it from West 
China. 
6. Genus: IMpriodonta Mr. 
Proboscis present; palpi porrect, short; antennae of $ laterally flattened down, below plainly serrate, 
the dents broad and curved, above file-shaped, with short sharp dents; forewing with an entirely bent and 
