914 
NACADUBA. By Dr. A. Seitz. 
sericina. 
tliaumas. 
angusta. 
kerriana. 
lionorifica. 
flumen. 
cyaniris. 
ilie spin. 
sangira. 
1 irhbwra. 
azureus. 
pamela. 
pactolus. 
hainani. 
neaira. 
odon. 
macroph- 
fhalma. 
andamani- 
ca. 
continenta- 
lis. 
lycoreia. 
form by Fruhstorfer in 1916. It inhabits India from the Himalaya to the Andamans. — pavana is a rather 
common species though by no means as common as macrophthalrna. 
N. sericina Fldr. (= smaragdina Semp.) This pretty species extremely resembles Lycaenopsis quadri- 
plaga (152 e) above except the dark transverse stripes beneath showing through in the white areas of the wings 
as very dull nebulous stripes. Beneath, however, these dark stripes are likewise so much reduced that the white 
transverse lines are partly widened partly quite confluent, so that in the disc of both wings broad white patches 
are produced; from Luzon. - — thaumas Fruhst. (= smaragdina Fruhst. p. p. nec Semp. ) (152 h) from Mindanao 
and Bazilan differs from the typical form by a still larger white area of the forewing. The $ to a certain extent 
recalls the $$ of perusia laura. In the the white area of the forewing is covered with a bluish grey, and 
both wings are also above crossed by thick black transverse lines. 
N. angusta Drc. is a form of kerriana (152 h) being distributed in Indo-China across Celebes and 
the Philippines. It almost exactly resembles a large form of sericina thaumas (152 h) except the disc of the 
forewing being more intensely dusted with a whitish blue, whereby the black transverse strokes are more pro¬ 
minent. Beneath our figures exhibit the light transverse stripes in the ^ white and distinct, whilst in the $ 
they are dull and yellowish-brown. Indo-China, across Malacca to Sumatra; in Borneo the typical form of angusta 
occurs *). The of kerriana has above approximately the colour of Catochrysops cnejus-<$. The species, moreover, 
is not common. — honorifica Fruhst. from Nias is much larger than the Sumatran specimens ( kerriana) usually 
are. $ lighter violet with a more prominent black costal margin and distal margin. Under surface darker 
grey with broader white stripes and more prominent black submarginal spots. — flumen Fruhst. from Java in the 
$ exhibits the wings above and beneath more intensely intermixed with white. — cyaniris Rob. from Flores 
shows by the distribution of the white colour, as the name implies that a certain external resemblance prevails 
with the species of the genus Cyaniris (= Lycaenopsis) as we have figured them 152 d to f. — thespia Fruhst. 
(d 1 = kerriana Stgr. nec Dist.). Whilst Borneo-specimens (thus typical angusta Drc.) exhibit a narrower black 
distal margin than Sumatran kerriana, the specimens from Palawan are darker violet than those, and the <$<$ 
are larger and in the colouring already approach the form pamela as it flies in Celebes. Forewing beneath whiter 
cream-coloured, the longitudinal stripes more blurred. -— sangira Fruhst. (= kerriana Stgr. p. p. nec Dist.) 
C above similar to the <J of thespia ; $ above almost invariably darkened and beneath likewise more intensely 
grey than specimens from Sumatra and Malacca. — limbura Fruhst. (= azureus Semp. nec Rob.) (154 a) is 
above lighter blue than $ from Celebes, the white crescents of the liindwings more extensive, so that the total 
impression of a much lighter lepidopteron is produced than in specimens from Celebes; these specimens from 
Celebes are azureus Rob., those from the Philippines being called limbura. — But whereas genuine azureus 
only come from the north and east of Celebes, to the south of the island the form pamela Sm. flies, which has 
already been mentioned above. From the water-fall of Maros, moreover, another form is mentioned — atro- 
marginata Drc. ■—■ the <$<$ °f which exhibit above a particularly broad black anal margin of the hindwing. — 
Finally angusta probably occurs in Ceram and Amboina. Felder mentions 4 Nacaduba from this island: 
calauria, helicon, panormus and niconia which being without a figure and insufficiently described, cannot be 
determinated for certain without seeing the types. Fruhstorfer presumes one of these 4 forms to be the 
Amboinese representative of angusta which therefore seems to be widely distributed, though rare in all its 
forms. 
N. pactolus Fldr. (= marcophthalma auct.) is a form distributed from Ceylon and the Nicobars 
to Formosa, Amboina and the Salomons, which has been described from the Southern Moluccas. ■— hainani 
B.-Bak. (152 i) is the north-easternmost form; d above radiantly violettish-blue, $ with a broad black margin. 
Under surface sepia-brown with very distinct transverse stripes composed of round, light-centred and light- 
margined spots, the submarginal stripe of which is proximally particularly bordered with light. — neaira Fruhst. 
(= pactolus Semp. nec Fldr.) is the form from the Philippines; very similar to the Amboina-form, but not quite 
the same amongst each other, but slightly varying according to the island from where they originate. — odon 
Fruhst. (= macrophthalrna Dist. nec Fldr.) shows above in the male a magnificent purple violet lustre; on 
the earthy-brown under surface the transverse strokes are not white, but only lighter, paler than the ground¬ 
colour and undulate, though coherent; from the Large Sunda Islands and Malacca. — macrophthalrna Fldr. 
originates from the Nicobars and chiefly differs from odon by the transverse marks beneath being on the con¬ 
trary dark or at least finely bordered with dark on a lighter brown ground. — andamanica Fruhst. has above 
more beautiful $$ with a more intense and lighter lustre. The black subanal spots cf the hindwing are nargined 
with white not blue as in macrophthalrna from the Nicobars. Beneath more brownish-grey instead cf blackish- 
grey, the white transverse stripes are more prominent. — continentalis Fruhst. (= macrophthalrna Swh. nec 
Fldr.) are the specimens from Continental India to Burma. The $ is lighter violet and larger than 
specimens from the Nicobars and than andamanica. Under surface in specimens from the rainy season 
smoke-brown, ip. those from the dry season blackish-grey. $ above of a brighter and more extensive 
bluish-violet t hyh insular specimens. -—- lycoreia Fruhst. are Javanese specimens. <$<$ and $$ on both 
*) DriIce figures this form in Proc. Zool. Soc. Lond. 1873, t. 32, fig. 9, but the figure is so bad that Drtce himself 
at another place says it to be entirely marred and misleading. 
