10 
IMMETALIA. By Dr. K. Jordan. 
7. Genus: B in metal ia Jord. 
Frons convex, without projection, or this very feeble and rarely with a raised ring. Segments 1 and 2 
of palpi with smooth scaling and hair, 3 smooth and in the $ long and cylindrical. Antennae distinctly 
incrassate. Eyes naked. Abdomen of and legs similar to those of Scrobigera. Forewing with areole, sub¬ 
costal branch 5 from the apex of the areole, 2 far beyond 5, radial 1 from the cell, radial 3 and median 1 
from the lower angle of cell, median 2 much nearer to the apex of the cell than in Scrobigera , medians 1 and 2 
nearer together at the cell than at the distal margin, cross-vein deeply incurved, angles of cell acute in both 
wings; in the hindwing radial 2 from the centre of the cell, radial 3 and median 1 from the lower angle of the cell, 
medians 1 and 2 nearer together proximally than distally. — Early stages not known. — A Papuan genus 
which is distributed from Celebes to the Bismarck Archipelago. The abdomen is not banded beneath in any 
of the species, being here either entirely black or orange-red at the tip. The wings are only uniformly glossy 
blue in one species, in all the other species the forewing bears a discal band and the hindwing is either black 
or bears also a band. The colour of these markings is either white or yellow or orange-red, and it is very 
interesting to observe that the colours appear in the following order: 1. forewing and hindwing with a white 
band, 2. forewing with a white, hindwing with an orange band, 3. fore-and hindwing with an orange band. 
A form in which the forewing has an orange band and the hindwing a white one does not occur. The sexes are 
either alike in colouring or the $ has white markings and the $ orange ones, or the $ is polymorphic. 
The variation of I. saturatei is highly interesting, as the geographical forms are very different as regards the 
variability in colouring, as is explained below. ° 
I. bernsteini. Markings of head and palpi, apex of abdomen (with the exception of the extreme tip 
in tire <§) and a band on both wings deep orange; the band of the forewing, which is sometimes yellow, touches 
bernsteini. the apex of the cell and sometimes is reduced to a spot. Moluccas. - bernsteini Voll. (= josioides Walk., xan- 
thomelas Bdv.). Segment 2 of palpi more or less extended black beneath; the band on the upperside of the 
hinclwing broader at the median vein than the black basal area. Morty (= Morotai) and Halmaheira; presumably 
also on Ternate. The band of the forewing frequently does not reach to the lower median vein in $ and §: 
brevimacula. ab. breviniacula ab. nov. — aragustiplaga Roths. (If). Segment 1 and 2 of palpi beneath entirely or almost 
angusti- entirely orange; fringes of apex of forewing usually yellow; band of hindwing above narrower than the black basal 
iiini/ii. area B a tj an , in the Tring-Museum 6 and 8 $$. In angustiplaga as well as bernsteini the black marginal band 
obiana. of the hindwing remains broad at the anal angle or tapers.— obiana subsp. nov. $: The band of the forewing 
paler yellow above and beneath than in the previous forms, of almost even breadth from the costa to the 
lower median branch (about 5 mm) and then moderately narrowed; it does not touch the cell, and the black 
marginal area is much narrower than in the previous forms (width at lower median 2 mm) on account of the 
greater width and more distal position of the band. Band of hindwing narrow, separate from the cell and extend¬ 
ing from the costal vein to the anal angle, being in the middle a little more than half the width of the black 
basal area and almost twice the width of the black distal border; fringes yellow at the apex of both wings; seg- 
buruuna. ment 2 of palpi with a few black scales beneath. Obi. — buruana subsp. nov. $: Segment 2 of palpi with a black 
stripe beneath. The bands touch the cells and are a little paler than in angustiplaga , particularly beneath; 
band of forewing broader than in angustiplaga, but distinctly narrowed in front of the lower submedian vein; 
the black marginal area broader than in obiana and narrower than in angustiplaga (measuring 3.5 mm at the 
lower median). Band of hindwing similar to that of angustiplaga, pointed behind, almost reaching the ab¬ 
dominal margin, the black distal border anteriorly narrower than in angustiplaga (6 mm at the subcostal), 
posteriorly but little narrowed (4 mm at the submedian fold), broader than in obiana. Goenong Mada, Buru, 
collected in September. 
I. saturata. Markings of head and palpi white, apex of abdomen orange. The fringes at the apex 
of both wings white or black, not yellow. In the <$ the abdominal margin of the hindwing bent downward, 
then recurved, the lower submedian vein bearing long and very conspicuous radiating hairs. Distributed 
from the Southern Moluccas to the Bismarck Archipelago. This species is probably the most interesting example 
of geographical and individual variation in colour. The most surprising in the development of the species in 
the various districts is the fact that the species, according to the country, is either monomorphic, or sexually 
dimorphic, or monomorphic in the and trimorphic in the $, or decidedly trimorphic in both sexes or even 
tetramorphic in the $. In the three subspecies from the Southern Moluccas the band of the hindwing is absent, 
saturata. but this is also sometimes the case in diversa from New Guinea which normally lias such a band. — saturata 
Walk. (2 a). The band of the forewing orange-red in both sexes, and the hindwing without band. Goenong 
doleschalli. Mada, Buru, the specimens in the Tring-Museum collected in September. — doleschalli Feld. (2 a). The band 
leu com el as. of the forewing white in <$, orange in $; hindwing without band. Amboina. — leucomelas subsp. nov. Like 
doleschalli, but the band of the forewing white in both sexes, extending beyond the submedian vein in the G- 
keiana. Ceram — keiana R. <Ss J. Both wings with orange band; the band of the forewing narrowing at both ends, 
elongate-luniform, widest in the centre (4.5 mm), almost entirely obsolete in front of the cell; band of hindwing 
narrower than the black basal area, anteriorly not reaching the subcostal. $ not known. Great Key. — On 
Aru flies a form which appears to be identical with the next; however, I have seen but one specimen (a £). — 
