NACADUBA. By Dr. A. Seitz. 
915 
surfaces coloured lighter than specimens of the other Sunda Islands. — pactolides Fruhst. (— pactolus pactolides. 
Smp. p. p.) <$ larger than the other races known of pactolus , above very dark though very lustrous violet-blue. 
Under surface blackish-grey with very prominent, almost purely white, small transverse stripes, on the whole 
very similar to angusta azureus Rob., but anatomically different in the genitals. Celebes. — antalcidas Fruhst. antalcidas. 
represents the species in New Guinea; from the Humboldt Bay and similarly also from the Snow Mountains 
(= pactolus Rothsch.). Here the under surface of the is darker than in typical pactolus from Amboina, the 
white transverse stripes are purer. — plumbata Drc. is denominated from its decidedly bluish-grey colouring, plumbatc. 
and occurs in the Salomons. — valuana Ribbe from the Bismarck Archipelago. Above the subanal spots of valuana. 
the hindwings are more prominent, the under surface is more distinctly marked than in typical pactolus. — 
The species being mostly found in the collections as macrophthalma, although they do not belong to this sub¬ 
species, seems almost invariably to occur in single specimens, arid I do not remember any excursion on which 
I captured more than 1 specimen. In flying it resembles somewhat very much flown Lycaenids of other species, 
such as certain Zizera. The imagines apparently do not rise much higher than 1 m above the ground nor leave 
their habitats at all. After having been scared up, they soon settle down again in their usual attitude, with 
them head downward and half-opened wings, somewhat like the European Lye. baton. In the mountains the 
species rises very high, and in spite of the prevalent opinion that the Nacaduba are more insects of the lowlands, 
I found the form continentalis occurring in the Nilgiris yet on the road from Metupalayan to Coonoor at an 
altitude of more than 1000 m, as well as in the plains. As to the larva nothing is known to me. 
N. astarte Btlr. $ dark grey violet with a black-shaded margin, a small black tail with a white apex; astartc. 
fringes whitish, submarginal line black, forewing beneath in the basal half greyish-brown; in the cell some 
white stripes and a transverse, white, distally concave, narrow band, accompanied by a broad, brown band 
bordered with blackish and exhibiting above the cell distally a blackish-brown small stripe. Distally to it 
there is a broad white band traversed by a black macular band, furthermore a small black marginal dot. 
Hindwing similar, the ground brown with white stripes, then a brown band, on it a white stripe and separate 
brown macular bands. Distally to it a row of black dots, the dot in the anal angle large, proximally tinted 
yellowish -and distally surrounded with bluish. Body above brown, beneath white. $ bluish-grey, with a 
bright blue reflection, the markings like in Lycaenesthes laryclas (vol. XIII, t. 71 h). Forewing with a broader 
black margin behind which a pale submarginal line appears, and before which a diffuse white line is visible. 
Hindwing with an oblong black spot right around the cell, a somewhat broader black margin being proximally 
undulate, and a row of black marginal spots with a white moon-shaped proximal margin; small tail short, 
black; abdomen brown. Beneath the wings are light brownish-grey in the basal halves; hindwing with irregu¬ 
larly placed, oblong, dark spots which are margined with black and white. Forewing with but 1 spot at the 
celkend; distal half snow-white, an irregular greyish-brown band right across the disc at the end of the basal 
part; an undulate, black, submarginal stripe, behind it a row of black spots, the two last of which are jet-black 
with small blue metallic scales; the last is long, the small blue scales only at the distal margin, the proximal 
margin is bordered by a pale, small, yellow luna; at the margin a black line. Fringes spotted black. 
29 mm. From New Britain, New Pomerania, and New Lauenburg. —- The species seems to be quite isolated; 
only the under surface distantly resembles cincyra and onycha (152 i) and perhaps gaura. 
N. nora Fldr. The figure of this very variable species in the ,,Novara-Reise“ (t. 34, fig. 34) is rather nora. 
indistinct and only shows the under surface. As in the allied species, here also mostly only the origin helps 
us to determinate for certain the numerous ,,subspecies“. Typical nora were described from Amboina, but 
they also occur in Ceram, Buru, probably also in Celebes, and specimens from the Aru, Key Islands, and New 
Guinea scarcely differ from it. — ab. gerydomaculata Rothsch. is an aberration in the marking from Ceram, gerydo- 
in the interior of which it was discovered; as the name indicates, the marking beneath somewhat resembles rnaculata 
the species of Gerydus (t. 141, p. 817—822), chiefly produced by the shape of the dark bands and the quadrangular 
spots in the diseal cell of the forewing. ■— formosana Fruhst. is above much darker than all the races known, formosana. 
larger than the Sikkim-race coelestis or bhutea. To the latter race the Formosa-specimens are anyhow similar, 
being beneath grey, the subbasal band of the forewing sometimes shortened. -— semperi Fruhst. (= nora Semp.) semperi. 
(154 a) from the Philippines exhibits above a much brighter and more extensive blue than in formosana, it 
occurs in the Southern (according to Semper probably in all the) Philippines, whereas a very small form being 
above in the $ brown with bright bands beneath and resembling the Malaccan form (aluta Dist. nec Drc.) figured 
by Distant on t. 20, fig. 14 inhabits Mandanao. -— noreia Fldr. (Vol. I, t. 77 i) is the Ceylon-race excelling noreia. 
semperi in size, and showing above some blue lustre. ■— ardates Mr. (154 a and Vol. I, t. 77 i) is distri- ardates. 
buted in the whole south of India, and it seems that those from Continental South India, the Andamans, Nico- 
bars and Java are not well to be separated. — bhutea Nic. (154 c) is a name for the Himalayan race; but many bhutea. 
of these names, as well as kodi Evans, lost their importance on recognizing that the tailed and untailed specimens 
of ardates not even belong to different local races and in some places even represent temporal forms. — lutea lutea. 
Martin from Sumatra only in the $ shows a difference, the under surface being light yellow, almost unspotted 
— kupu Kheil from Nias are lighter and larger than Himalayan ardates. •— meraha Fruhst. from Engano is above kupu. 
meralia. 
