AMATHUXIDIA. By H. Fruhstorfer. 
431 
that of binghami Fruhst., dark grey-brown, with uniform broad brown areae, which are conspicuously white bor¬ 
dered. The apical ocellus again very small, whereby they are most readily distinguished at sight from Amathusia 
phidippus, which flies with them. Lombok Island, at elevations of about 600 m. Very rare, so that I was only 
able to obtain one 3 - Flies in April. 
Specific group Pseudamathusia Hour. 
Hindwings with a cup-like depression in the basal angle between the costal and subcostal. Fore wings 
beneath with a shining smooth spot, which in one species is surrounded distally also by black scales. 
A. masina recalls ochraceofusca Hour., staudingeri Rob. and perakana Hour., in the far produced 
apex of the wings and the narrow hindwings. The ground colour is a light rust-brown, on which the white 
bands of the underside show through. As in phidippus, there are at the apex of the tails two black, outwardly 
white bordered eye-spots. The underside is very similar to taenia Fruhst. from Java, only that the ground 
colour is not brown-grey, but light red-brown with sharply defined coffee-brown longitudinal bands, which are 
prominently edged with silvery white. The white bands are narrower than in Amathusia parakana Honr. and 
Pseudamathusia virgata Btlr. The anal margin of the forewings is less strongly curved than in virgata and their 
shape is about that of staudingeri Rob. On the upper surface of the hindwings the black shadow between the 
subcostal and the upper radial, which distinguishes virgata, is wanting. From the fold between the third median 
and the submedian project two dark brown hair tufts, while in virgata there is only one tuft with whitish-yellow 
hairs. Below the hairs there is also a broad swelling with longer dark brown hairs, as also occurs in Ama¬ 
thusia perakana Honr. Underside; the black scales are absent from the outer side of the corneous shining patch 
which is also shorter than in virgata. The submedian is scarcely half as strongly curved. Two sister races must- 
be mentioned; masina Fruhst. (105 b) by an unfortunate mistake the upper surface, which tells one nothing, masina. 
has been figured; the underside is like perakana, only that the white stripes are all very delicate; the ground 
colour still richer red-brown and the submarginal bands sharper and narrower. South-east Borneo, rare, only 
3 33 in my collection. ■— chthonia subsp. nov. with duller but paler yellow-brown upper surface, and a long, chthonia. 
but scanty pale yellow-grey tuft on the hindwings. Forewings with very narrow, sharply defined longitudinal 
band, which does not extend to the costal or anal margins. Under surface somewhat similar to perakana, but the 
colouring more like that of binghami. Bangka Island, type in the Staudinger collection. 
A. virgata has the most developed scent apparatus in the genus, and is at the same time the only 
species with a extensive shining black smooth area on the upper surface of the hindwings, corresponding to 
a similar speculum on the under surface of the forewing, basally of the colour of the membrane, but distally 
black bordered. Hindwings with a roundish oval scent cavity, filled with brown androconia, and patch of yellow¬ 
ish hair on the submedian. Ground on the upperside of the 33 a fine fawn-brown, that of the $$ lighter, 
an indefinite brown-yellow, someting like A. phidippus. Underside analogue of phidippus celebensis Fruhst. 
with almost equally broad white and brown streaks which become chiefly yellow r in one local race from the nor¬ 
thern Celebes. Eye-spots on the hindwings about equal in size, the anterior ones especially distinctly black 
ringed. — virgata Btlr. (= ribbei Hour.) inhabits the south of Celebes, where I took it feeding on the sap virgata. 
exuding from the Sugar palm at the back of the malayan Cemetery in Macassar, frequently in company with 
Elymnias mimalon Hew. and hicetas Wall. Flies from January to March. — thoanthea subsp. nov. differs thoanihca. 
in the’yellowish longitudinal bands on the underside, which are scarcely to be distinguished from the ground 
colour, whereas the typical virgata from the south recalls parakana Honr. and taenia Fruhst., by its silvery 
white bands. Collected by me at Toli-Toli in North Celebes in November-December, and attracted in numbers 
by banana skins hung out. 
10. Genus: Amatlnixidia Stgr. 
The two splendid species of this genus are conspicuously sexually dimorphic, the 33 velvet black 
with blue or violet bands on the forewings, the $$ brown with ochre-yellow bands; the under surface with 
fine dark brown longitudinal streaks. Structurally the Amathuxidia can only be separated from the Amathusia 
by the costal of the forewing being anastomosed with the subcostal. On the hindwings there is, as in Ama¬ 
thusia, a median spur, which reaches its fullest development in the genus Zeuxidia. This genus forms a tran¬ 
sition to the Zeuxidia in the prominent tertiary sexual characters and the luxuriant colouring. Forewings 
beneath with a smooth speculum near the median nervure, and an accumulation of dull shining blue-black 
scales below the submedian. Hindwings with a yellowish hair tuft in a deep pocket-like fold in the curve 
of the submedian, close to which is a swelling covered with dense red-browm or yellow-grey hairs; in and be¬ 
hind the cell is a broad patch of plush-like scent scales, which in one species^(pZafem')^are mingled with long 
