920 
NACADUBA. By Dr. A. Seitz. 
laura. 
laurina. 
cerbara. 
albofascia¬ 
tus. 
cyaneira. 
dion. 
syrias. 
lydia. 
ariitea. 
cureies. 
■palmyra. 
meiranga- 
n us. 
uluensis. 
vincula. 
thadmor. 
lineata. 
fatureus. 
vaneeckei. 
poecilta. 
eugenea. 
cylhora. 
hyperesia. 
Under surface entirely light grey with comparatively very broad white transverse streaks. — laura Doh. from 
Sumba and Sumbawa looks so different that it was described as a separate species; the $ forewing shows white 
discal spots which are also noticeable on the hindwing, whereby the species shows a certain resemblance to 
Lycaenopsis contilia (152 c), which, however, only refers to the upper surface. — In laurina Fruhst. (152 k) 
a just, as great resemblance of the $ to Lycaenopsis cossaea (152 d) is noticed; the under surface with narrow 
white transverse lines, like in the atrata beneath, but lighter and dirtier brown than these, the yellow halo round 
the subanal eye-spot has almost disappeared. Lombok, common on blossoms at the skirts of the woods. — 
cerbara Fruhst. $ on the forewing very much like laura and laurina (152 k), but on the hindwing the white 
is not so distinctly defined and neither parted by a dark stripe, as is often the case in laurina, but prolonged 
as far as the anal angle, thus forming a transition to the following form. Also the forms a transition 
to albofasciatu-s by the under surface being parted by a band-shaped light part extending right across the middle 
of both wings. Key Islands. — albofasciatus Fob. shoivs above bright blue without a white discal spot, 
but the light transverse lines beneath show through. The under surface is crossed by a whitish transverse 
band being several times interrupted by brownish undulate and crescentiform chains, commencing soon below 
the costa of the forewing and extending almost to the proximal margin of the hindwing. Aru Islands. — In 
cyaneira Fruhst. (= dion Rothsch. nec Godt.) from the Snow Mountains in Dutch New Guinea the white 
central band beneath is narrower than in albofasciatus . •— Also in Australia there occurs a form of perusia being 
called dion, though it is very irrecognizably described (according to Frfhstorfer the description fits to nearly 
all the Nacaduba). The upper surface is of a peculiar dull lead-colour, the whitish central band beneath is more 
extensive, less sharply defined. Fruhstorfer doubts whether it is really the Australian race which was deno¬ 
minated dion Godt., and thinks that by this name the Timor-race is hidden, and therefore denominates the 
Australian perusia-iorm syrias. — lydia Fruhst. $ above light and delicately violet, quite similar to the 
laura- qq from Sumbawa. The $ resembles more the Javanese $$ ( agorda ) than those from the Aru or Key 
Islands; the blue area is confined to a narrow, anteriorly narrowed zone in the forewing; on the hindwing it 
is only yet indicated. Beneath the <$<$ are like agorda-, the $$ are uniformly slate-coloured, with a scarcely 
noticeable white brightening in the disc of the forewing, but very distinct, small, white transverse stripes and 
prominent black submarginal spots. From the Louisiads. — ariitea Fruhst. is the form from the Bismarck 
Archipelago; the $$ are very pinch like those of lydia, showing above the same broad black marginal band, 
the basal area of both wings with a light blue reflection. Forewing with a whitish postcellular brightening. 
Under surface smoky-grey, the transverse lines white. •— euretes Drc., from the Salomons, above entirely resem¬ 
bles the $ of corene, but it is much lighter blue. 
N. palmyra Fldr. This species deviates more from the other Nacaduba-, the $ is above also rather 
uniformly dark blue, but in the $ forewing the basal area is dark bluish-grey, the discal area white 
and the marginal area black. The under surface is much more variegated by the white discal transverse 
band on the forewing being distally thickly bordered with black. In the typical form from Amboina and 
Ceram the white discal band in the hindwing is quite narrow. — meiranganus Rob. shows beneath in 
the d' only in the distal half of the forewing distinct, small white dots which are often separated afar 
and scarcely arranged in rows; in the $ the white discal band of the forewing is beneath very broad, in 
the hindwing it is entirely absent. Aru Islands. — uluensis Ribbe (= meiranganus Rothsch.) is the form from 
the Bismarck Archipelago and the Admiralty Islands; it is above in the $ blackish-brown, for the rest it resem¬ 
bles so much the typical palmyra that Pagenstecher, before whom they were lying, did not separate it from 
them. — vincula Drc. originates from the Salomons; upper surface of the quite uniformly dull light blue, 
the under surface has broad and very dark bands; particularly the discal bands of the forewing are broad, the 
distal discal band is 3 mm broad. — thadmor Fruhst. (= coelia 8m. p. p., meiranganus Rothsch. p. p. nec Rob.) 
(152 k) rather much resembles the Australian form lineata Murr. (= tasmanicus Misk.) in which the white 
area of the $ forewing is said to change according to the season. This form, however, does not occur at all 
in Tasmania, as we may presume from Miskin’s name, but has hitherto only been found from Cape York to 
the south as far as Sydney. — fatureus Rob. (= dobbensis Rob. 9, nec tf) is a very small form from the Aru 
Islands with a very dark under surface which in the <$ exhibits but very scanty, small, whitish hooks as the 
remainders of the transverse lines and only in the distal part of the wings, in the hindwing a little beyond the 
middle of the wing towards the base. The $ is unknown to me, but it is probably similar to the figured 
thadmor -$ (152 k). — vaneeckei Fruhst. is in the $ above darker than typical palmyra from Ceram, or the speci¬ 
mens from Burn very much resembling them (= poecilta Ft oil.); the white median spot of the forewing is 
somewhat confined by the broader apical black, the hindwing above with a very dark bluish-grey reflection. 
The under surface which is blackish in lineata Murr. appears here lighter smoke-brown. — eugenea Fruhst. (152 k) 
originates from the Island of Obi. As the figure shows, the $ wings above show a bright deep blue reflection with 
a faint violettish hue, whilst beneath the transverse markings, in contrast with the species hitherto described 
showing but few punctiform remainders, are well developed as white transverse lines. —- We finally mention 
yet the form cythora Fruhst. from Batjan. 8 above lighter greyish-violet than specimens from Amboina or Burn; 
under surface darker, the white lines not so well developed than in eugenea, only yet visible as blurred traces. 
N. hyperesia Fruhst. closely approximates the palmyra- forms, but it is provisionally regarded by 
its author as a separate species. Very closely allied to eugenea from Obi, but the forewing much more pointed, 
