294 
XOIS. By H. Fruhstorfer. 
celebensis and at the same time. The upper surface differs from that of loryma in the uniform black-brown, 
which in the distal area of both wings is slightly inclined to red-brown. On the under surface, which is very 
well depicted on 99 g, all the yellow shading is absent, the eye-spots are rounder, bordered with more pronounced 
dark orange-yellow. The foreground of the ocelli somewhat paler than the rest of the ground-colour. 
nigricans. Y. nigricans Snell., previously known in a few examples from western Java, was also found by me 
in the east of the island at about 500 m. above sea-level. In colouring it is above very similar to ancus, but 
the under surface is different, more approaching pandocus, in the presence of a brown-grey tone on the forewing 
and a whitish median area on the hindwing. The hinclwing is always more broadly margined with darker brown 
than in pandocus, the anal ocellus compared with the subapical relatively larger and all the eye-spots on the 
phasis. whole more uniform. — In the Zuider Mountains to the south of Malang occurs also a dry-season form (phasis 
form, nov.) with the ocelli on the hindwing beneath reduced to mere dots. 
Y . iris Leech (vol. 1, pi. 34 d) with dromonides Oberth. (vol. 1, pi. 34 d), beautei Oberth. (vol. 1, pi. 34 c) 
and ciris Leech (vol. 1, pi. 34 d) form a small group of Eastern Palearctic species with very obliquely placed 
oval, bi-pupilled ocellus on the forewing and two to three subanal ocelli, as well as an apical eye-spot on the 
forewing. All inhabit eastern China, partly at elevations of 5—8000 ft. and are fully dealt with in vol. 1 (p. 92—93). 
clinoides. Y. clinoides Oberth. is a form or species unknown to me in nature, which should be placed near iris 
Leech and is characterized by the absence of the anal ocelli on the hindwing above. Described from Yunnan, 
collected by missionaries at Tsekou. 
dromon. Y. dromoil Oberth. differs from iris Leech in the smaller eye-spots, which on the under surface are 
nearly obsolete. Yunnan, Tsekou. 
Y. megalomma Btlr. (vol. 1, p. 92, pi. 34 c) belongs to a small south-east Palearctic group, which 
embraces but few species, with large rounded eye-spots on the forewing and a medium sized ocellus on the 
hindwing above, but entirely without eye-spots on the hindwing beneath. The species was discovered at Ningpo, 
where it flies in April, and afterwards also in Chang-yang, Central China, as well as West China, where it as¬ 
cends to 5000 ft. 
meg alia. Y. megalia Nicev., discovered in the upper Shan States near the borders of China, where it likeAvise 
flies in April, is about the size of sakra Moore and has the hatching beneath quite as fine. But on the upper 
surface it approaches megalomma, except that the ocellus is oblong. The hindwing is beneath brown, with 
slight indication of a subbasal and median white-grey band and entirely without eye-spots. 
Y. insolita Leech (vol. 1, p. 92, pi. 34 d) is extremely rare in West China, flying in June at elevations 
of 5000 ft. Under surface white-grey with brown spar-shaped band and traces of small eye-spots. 
abnormis. Y. abnormis Shelford, described from a $, belongs in this group unless it is an aberrant form. Upper 
surface without ocellus. Under surface pale brown with dark, somewhat reddish stripes, which divide off three 
areas. Hindwing with five irregular and somewhat indistinct bands, likewise without eye-spots. Abdominal 
margin of the hindwing deeply excised and the distal margin slightly undulate. 57 mm. expanse. From Sa¬ 
rawak, but very rare. Type in the Sarawak Museum. 
2. Genus : Xois Hew. 
This small Australian genus is closely allied to Ypthima and only differs from it in the distinctly bifur¬ 
cate precostal vein of the hindwing and the shorter terminal joint of the palpi. Only two certain species known, 
which inhabit the Fiji Islands. They are small delicate butterflies of whitish colouring, with a large eye-spot, 
bi-pupilled with white, in the darker apex. On the under surface the wings are finely striated, the hindwing 
always without ocelli. 
sesara. X. sesara Hew. ( — diophthalma Prittw.) (99g) is a not very rare species, with the under surface in the 
c? dark, in the $ somewhat lighter ochre-yellow. Concerning the habits nothing is known. Viti Levu. 
argentina. X. argeritina Prittw. is said to come from Samoa. 
fiilvida. X. fulvida Btlr., with which X. vitiensis Fruhst. (93 f) is probably identical, differs according to my 
types in having the fore wing broadly margined with black above and a moderately broad black distal margin 
to the hindwing. The margining of the forewing shows through beneath, but the hindwing bears only a narrow, 
fine, brownish distal border. On the forewing only the basal and apical parts are suffused with yellowish, the 
median area remaining pure white. The hatching on the hindwing is more slender than in sesara. Apparently 
very rare. Both sexes in coll. Fruhstorfer. Viti Levu. 
