Some undescribed Butterflies from Dutch New Guinea. 19 
waved ; ground-colour black; an oblique yellowish band extends 
from the middle of the inner margin towards the apex, it is inter- 
rupted at the cell, and a white apical dot continues the line ; there 
are four white dots on the hind margin. Hind-wing yellowish 
white, with a broad black border extending from costa half way 
round the wing and then continuing as a very narrow margin ; in 
the broad part are three white dots. 
Under-side: fore-wing as above, but the oblique band is wider 
and the spotsare more distinct ; hind-wing black, with narrow white 
costal stripe and broad angulated transverse white band, outwardly 
serrated. In the black margin beyond are 6 irregular pale spots ; 
there are also 3 yellow spots in the dark basal portion, and a thin 
white line following nervure 1b. Female very similar, but the 
Wings are more rounded. Exp. 50 mm. 
Arfak Mountains, January 1909. 
This insect bears a singular resemblance to some of the 
species of the South American genus Leodonta, in which 
the neuration is almost the same. 
Delias elongatus, n. sp. 
(Plate IIT, fig. 4.) 
Head, palpi, antennae, and legs black. Thorax black, with brown 
hairs below. Abdomen dark grey above, white beneath. 
Upper-side : fore-wing dull black, faintly darker at end of cell; 
an apical and marginal row of 7 ill-defined subtriangular white spots, 
Hind-wing white, with black border of medium width. The base 
of the wing fades into dark grey, and there is an ill-defined black 
spot at end of cell. 
Under-side : fore-wing dark grey with a whitish triangular patch 
from inner margin upwards; the marginal spots are well-defined 
and quadrate. Hind-wing white; a well-defined tapering black 
streak extends along the costa, followed by a white band: then 
follows a V-shaped black mark with apex towards the body and 
extending from costa nearly to the angle. There is a round black 
spot at the end of the cell, and a rusty ill-defined cloud covering 
half the basal area. Marginal band deep black. Exp. 52 mm. 
Arfak Mountains, January 1909. A single male 
specimen only. 
This insect differs from most of the New Guinea species 
of Delias in having the wings longer and narrower, and 
resembles some of the Australian species in this respect. 
¢ 2 
