38 
CHALCOSIA. By Dr. K. Jordan. 
C. phalaenaria. Agreeing in structure with C. auxo L., perhaps not specifically different. Under 
surface of the hindwing usually much deeper yellow than in any specimens of the various forms of auxo. 
Forewing above yellowish white from the liindmargin to the cell, also the costal margin white at the base. 
Distributed from Borneo to Java. Larva yellow, with thin brown longitudinal lines; head brown, prothorax 
birmanica. dark yellow, the tubercles on the mesothorax black. In Java on Symplocos fasciculata. — birmanica 
subsp. nov. Forewing in cf and ? with three black spots, suffused with blue, behind the cell, these spots 
distally to the cell-spot, consequently the white band which separates them from the basal area much more 
strongly broken than in C. auxo; these spots on the under surface still larger than above, in the cf usually 
extended to the base; veins above blue in the distal part; marginal band of the hindwing not interrupted 
annamitica. above. Lower Burma. — annamitica subsp. nov. (7 c, not anamitica). Forewing as in the preceding sub¬ 
species , the dark parts suffused with pale green-blue, with the exception of the spots between the veins of 
the second band; the white subapical band beneath twice as broad as the postdiscal black and blue band 
and almost reaching to the hinder angle. Marginal band of the hindwing above broken up into spots, 
beneath reduced to a narrow submarginal band, neither above nor beneath extending beyond the first sub- 
latifasciata. median. South Annam. — latifasciata Btlr., from the Malay Peninsula and Penang; the black markings 
suffused with blue, much reduced; forewing above with 2 spots behind the cell, these spots beneath absent 
or there is only an indication of one; postdiscal band very narrow and like the narrow marginal band 
broken up into spots by the white veins; forewing before the distal margin with a row of spots, which 
coliadoides. beneath reaches farther backwards than above. — coliadoides Walk. The yellowish submarginal band of 
the forewing is very narrow above and beneath, especially in the ? very much narrower than in latifasciata. 
obtusa. Borneo, Sumatra and Nias. One of our Borneo ?? has pure white ground-colour. — obtusa subsp. nov., 
from Palawan; only one ? known. Forewing more obtuse than in Borneo ??, the marginal area more 
strongly blue, the veins yellowish white only close to the margin and the upper ones not at all, the 
yellowish white submarginal band continuous, nearer to the margin and the two blue and black discal spots 
larger than in the ? of the preceding form. More resembling the cf than the ¥ of coliadoides, and still 
enganica. more the Javan ?. — enganica subsp. nov., from Engano, also only one ¥ known. In the forewing the cell- 
spot and the two discal spots larger than in all the other Malayan forms of this species, the discal spots 
distinct also beneath; yellowish white submarginal band somewhat broader than in the cf of coliadoides; 
marginal band of the hindwing only posteriorly crossed by narrow white veins, extending to beyond the 
phalaenaria. 2. median. — phalaenaria Otter. (= pulchella H.-Sch.) (7 c), from Java. In the forewing of the cf above 
only a few small white submarginal spots, the veins in the marginal band not yellowish white, the cell- 
spot and the discal spots small, the marginal band of the hindwing not broken up into spots and not 
separated from the margin. The ¥ somewhat similar to the Borneo cf, the yellowish white submarginal 
line of the forewing nearer to the margin and the veins less broadly yellowish white than in coliadoides. 
C. nympha. Very similar to the following species, perhaps only a variety of it. Forewing white 
from the base to the apex of the cell and the anal angle, a basal costal streak and the veins in the distal 
part of the wing copper-red; a cell-spot and one or two smaller spots behind the cell black, shaded with 
blue; hindwing white, with narrow submarginal band, which does not reach to the anal angle, beneath 
paviei. without blue-black patch in the cell. — paviei Pouj. (7d erroneously written pavici), from Laos, has small 
nympha. white subapical spots on the forewing. In nympha Moore, from Hainan, these spots are large. 
suffusa. C. suffusa. Veins of the forewing above copper-red, at least in the distal part; hindwing beneath 
aernula. with blue-black streak in the cell. China and Formosa, southwards to Annam. — aemula subsp. nor. 
Similar to C. paviei, larger, wings broader, forewing with larger middle spots, the marginal area much 
broader, the marginal band of the hindwing broader and longer. On the underside the middle spots of the 
forewing are present, the 2. or also the 3. is prolonged to the base of the wing, in the latter case the 
whole base of the wing with the exception of the liindmargin blue; the cell of the hindwing has a black 
subcincta. streak at the anterior margin. Central Tonkin. — subcincta subsp. nov. cf: shape of the wings as in 
aemula, the dark markings more extended; the three middle spots of the forewing larger, the purple vein- 
streaks broader, the marginal band of the hindwing reaching to the anal angle, posteriorly quite suffused 
with blue. Hindmargin, a nan’ow median band and two small subapical spots on the forewing white; cell- 
streak of the hindwing broad, the submarginal band extending a little way along the abdominal margin. 
thaivana. Annam. — In thaivana subsp. nov., from Formosa, the costal margin of the forewing is not white at the 
base, the black cell-spot and the two spots behind the cell are large, continuous; the white cell-spot is 
broader than the distal part of the white band; the white subapical band interrupted above and beneath: 
hainana. hindwing with small black cell-streak; upperside of the abdomen glossy blue. — hainana subsp. nov. (7a). 
Wings longer than in the three preceding forms, the basal part of the forewing striped. The hindwing, 
though often washed over with brown posteriorly before the distal margin, is never so extended brown as 
in the West China subspecies suffusa Leech (see vol. II, pi. 2e). 
flavicollis. C. flavicollis spec, nov, (7 d). cf and ¥ similar. Small; occiput and costal margin of the pronotum 
yellow; underside of the body and palpi white; upperside of the abdomen blue. Forewing above coppery 
