832 
WAIGEUM. By Dr. K. Grunberg. 
chromia. 
manto. 
stephani. 
albirfa. 
albostrigata. 
carisshna. 
is likewise more extensive than in pindus , the blue submarginal band on the hindwing above well developed, 
also on the posterior part of the forewing indicated. Under surface essentially as in the $. Key Islands. 
Th. chromia H. Ii. Dr. (142 e). <$: above unicolorously blue as in pindus, but the black border 
of the wing quite narrow. Under surface with a more extensive white colouring. Forewing with a white basal 
streak at the costal margin and a distinctly prominent, white submarginal band, hindwing in the marginal 
part with two white bands, between which there are of the blue marginal band only some semi-rings. The 
$ above also greatly resembles illustris, but the white band in the hindwing is narrower. Beneath very much 
like the <$, the white submarginal band in the forewing distally yet accompanied by a white marginal line. Fauro 
and Maravo, Shortland Islands. 
Th. manto Sm. & Ky. (142 f). upper surface extensively black, the bases of the wings scaled 
m a bluish green; forewing with a rather narrow, whitish longitudinal band extending from the base to beyond 
the cell-end, at the anal angle a single blue spot. The white band of the hindwing likewise narrow, running 
in the direction of the costal margin, before the anal margin a series of blue arcuate spots. Beneath in the 
forewing with a more extensive white median part, the two white marginal lines extending as far as the apex; 
the white band in the hindwing narrow, costal margin likewise white, marginal band very broad, blue-green 
with oval black spots, distally accompanied by a white marginal line. New Guinea (Astrolabe Bay, Constantin- 
hafen); New Pomerania. 
Th. stephani Sm. Ky. (144 d). Allied to sperchius (143 i) and manto (142 f). upper surface 
blackish-brown, the base with bluish-green scales, the white band of the forewing rather broad, extending 
as far as half the inner-margin and in the middle extending a little beyond the cell-end; of the submarginal 
macular series only two small spots at the anal angle are distinct; the white band in the hindwing close at 
the base, the small tail long white-margined. Forewing beneath with a more prominent band and 2 blue 
submarginal lines on the posterior half. The white band in the hindwing does not reach the distal margin, 
the costal margin also white, the blue marginal band very broad with large, oblong-oval spots being separated 
only by the veins, the white marginal line distinct. New Guinea (Stephansort). 
Th. albula Gr.-Sm. (= olga Gr.-Sm.) (144 e). A small species with broadly rounded wings. above 
to a little beyond the centre of the wings white, the white colouring separated by the broad black border by a 
pale violet zone extending in the forewing along the costal margin as far as the base; at the anal margin 
of the hindwing 4 bluish-green moon-spots. Under surface to a little beyond the middle of the wings white, 
the blackish-brown marginal part in the forewing anteriorly broader, beginning already in the middle of the 
costal margin, the base of the hindwing and basal half of the costal margin in the forewing black, in the forewing 
a short, white-grey basal streak; along the border in both wings a series of brownish-grey rings, the 4 posterior 
ones in the hindwing are bluish-green and form a narrow marginal band which is proximally bordered with 
a brownish-grey arcuate line. $ above without any blue colouring, with a broad black border, the basal half 
of the costal margin in the forewing likewise black, in the hindwing only 3 moon-spots. Under surface as in 
the (J. German New Guinea (Kapaur). 
Th. albostrigata B.-Bak. above deep blue with an extremely narrow black border, hindwing with 
a prominent, white, moderately broad band. Beneath black, the band in the hindwing as above, the white 
inner-marginal area in the forewing extending as far as the middle of the cell and vein 5, the greenish-blue 
costal-marginal streak in the forewing and hindwing extending as far as the middle, spots of the marginal band 
large, the bluish-green bordering rather narrow. German New Guinea (Fak-Fak). 
Th. carissima Sm. & Ky. (144 d, e). <$: upper surface lilac-blue, border in both wings narrowly 
margined with black, hindwing with a broad, white, partly blue-tinted band which is the broadest at the inner 
margin, forewing with a large triangular basal spot on the posterior part of the wing, leaving the inner margin 
free and exhibiting at the veins blue scales. Under surface yellowish-white, the black costal-marginal band 
in the forewing as far as the apex of the same width and at the base with a white longitudinal ray, the white 
submarginal band traversing the black marginal part rather broad, extending almost from the apex to the 
anal angle and enclosing a series of black spots. The black costal marginal band in the hindwing long drawn 
out, extending beyond the middle of the wing, in the black marginal part occupying almost the distal half 
a broad, distally intensely white-bordered, bluish-green band with partly very small, oval, black spots. upper 
surface blackish, the white marking somewhat more extensive and more prominent, than in the <$, the bases 
of the wings bluish-green, the black, bluish-bordered marginal spots in the hindwing rather distinct, at the 
anal angle a white marginal line, the small tail long and narrow, black with a white tip. Pura, Wetter. 
. 2. Genus: Waigeum Stgr. 
Without counting some differences in the wing-contour and neuration by which the genus is morpho¬ 
logically separated from Thysonotis, these butterflies receive a deflected, independent character by their colou¬ 
ring and marking. The ground-colouring above is also in the <$<$ a deep, intense blackish-brown, inter¬ 
rupted by a prominent, though never particularly extensive white band. The blue scales of the upper surface 
never exhibit the bright, light blue or the cheerless slate-blue of the species of Thysonotis, but they are of a 
lustrous metallic colour. The under surface often exhibits a warm light-brown ground-colour, particularly 
