ETERUSIA. Bv Dr. K. Joudan. 
34 
depression. Fore and hindcoxae without white spots. Forewing with a broad white band; hindwing velvety 
black, a spot (often very small) at the apex of the cell white, some spots before the distal margin blue. 
The posterior white discal spots of the forewing are very small or absent on the upper surface, beneath 
they are small and are placed in a blue band: the triangular costal spot of the underside of the hindwing 
has its apex directed towards the abdominal margin (not the distal margin). — Sikkim; Assam; Tenasserinr. 
E. aedea. Abdomen above in d and ? pale yellow, 1. and 2. segments green, sometimes also the 
3. suffused with black, underside of the abdomen green-black, the margins white. Forewing black-green, a 
basal spot, a band usually broken up into spots, a spot at the end of the cell and an irregular row of longitudinal 
spots before the distal margin white. Hindwing black, with or without white or yellow area from the hind- 
margin to the costa, several white spots before the apex. The forms here united are quite alike in structure 
and certainly belong to one geographically, and in North India strongly individually variable species. Larva 
very similar to that of tricolor, on tea and other plants; brown-yellow. Cocoon white, with a reddish tinge. — 
aedea L. (= sinica Men.) (vol. II, 2c) is the Chinese form, in which the distal spots of the forewing, 
especially the one at the end of the cell, are large and the black basal area of the hindwing is very hroad. 
aedea. 
formosana. Extending into the Palaearctic Region. Sometimes the middle area of the hindwing is yellowish. — formosana 
edocla. 
lepcha. 
subsp. noi\ agrees in the forewing with the Chinese form, whilst the black basal area of the hindwing, as 
in the following form, is much smaller. The middle area of the hindwing is white or yellowish. Formosa. — 
edocla Doubt, is the subspecies from North India and Burma, which is polymorphic. As adocla ab. lepcha 
form. nor. we designate the aedea- like form, in which the middle area of the hindwing is white; it is 
distinguished from aedea aedea by the mostly smaller distal spots, the always smaller spot at the end of the 
cell of the forewing and the smaller black basal area of the hindwing. The specimens with yellow medial 
magnifica. area on the hindwing are ab. magnifica Btlr. (vol. II, 2d), whilst those with black hindwings are ab. edocla 
Doubt. (6e); transitional specimens between this last form and the other two have a more or less large 
yellow or white spot in the middle of the cell of the hindwing; this is ab. dulcis Btlr. (= signata Mbschl.). 
virescens. All these forms occur together; their identity will certainly be easily proved by breeding. — virescens Btlr. 
is the South Indian subspecies, in which the grey-black basal area of the hindwing and the border posteriorly 
cingala. are broader than in lepcha, the white medial area is therefore much straighter. — cingala Moore inhabits 
Ceylon; the white basal spot of the forewing is large and the transverse band is near to it, often even joined 
to it at the hindmargin and behind the cell; border of the hindwing, as in virescens, extended to the anal 
angle. The larva appears periodically in such abundance that whole areas of the tea-plantation are defoliated 
by them. The Tachnid Exorista lieterusiae Coq. is parasitic on the larvae; as many as 10 pupae of the fly 
have been found in the dead cocoons of the Eterusia; sometimes almost all the larvae are infested. 
E. distlncta. Sexes very different. Forewing with costal veinlets, lower angle of the cell of the 
hindwing projecting further than the upper angle. Body of the d above blue or yellow, beneath grey; 
forewing triangular, distal margin as long as the hindmargin, yellow with black spots between the veins; 
hindwing with the costal and hindmargins about the same length, yellow, black on the veins; under surface 
less black than upper, c f larger, wings more elongated; abdomen above yellow, the ventral segments green, 
margined with white. Forewing grey-brown or whitish, with large purple-black spots between the veins; 
hindwing and under surface blue, with black spots or with large white area. Larva on Jambosa densiflora 
and Melastoma polyantum; brown, beneath lighter and here with single white hairs, the stigmata black, 
drataraja. legs red; duration of the pupal stage 14 days — drataraja Moore (6c) is the Javan form; the black spots 
of the d are reduced on the under surface, especially in the hindwing. The veins and the band on the 
forewing of the ? are very pale, and the hindwing above and beneath is white almost to the lower angle 
of the cell, the border of the hindwing is only slightly blue above and incloses one or several light spots, 
distincta. which are sometimes connected with the white area. — distincta Guer. (= osseata Walk.) (6 b) inhabits 
Malacca, Penang, Gambodja and Sumatra. The yellow markings are much reduced in the forewing of the d. 
The veins and bands in the forewing of the ? are darker brown-grey; the hindwing has a white area like 
the preceding form, or the area is smaller and on the underside almost entirety obsolete, the marginal band 
oenone. is strongly glossy also above and usually quite unicolorous. - oenone Btlr., from Nias; the d is scarcely 
distinguishable from the preceding form: the black spot at the end of the cell of the forewing is not divided. 
The ? is dimorphic; the dark form is very blue on both surfaces, the band before the middle of the fore¬ 
wing is narrow and is not present beneath, the hindwing above and beneath without white area; the light 
indistincta. form resembles the ? of drataraja, but the dark parts are much bluer. — indistincta Sioinh., from Borneo. 
The ? is darker than distincta; the hindwing shows above and usually also beneath vestiges of the white 
area and the band of the forewing beneath is mostly indicated by a light cell-spot, sometimes fully developed, 
albino, but narrow. — The lightest form is albina subsp. nor., from Mergui, of which only are known to me. 
Fore part of the pronotum and the first dorsal segment of the abdomen yellow like the remaining dorsal 
segments of the latter, the ventral segments broadly white; band of the forewing above and beneath almost 
pure white, the veins somewhat lighter even than in the Javan form; hindwing white from the base nearly 
to the apex of the cell, distal border as in distincta without spots. 
