- 
20 Sir G. H. Kenrick on Butterflies from Dutch New Guinea. 
The marking of the under-side of the hind-wing is quite 
remarkable and unusual in the genus. 
Libythea hatami, n. sp. 
(Plate IV, fig. 2.) 
?. Head dark brown ; palpi, thorax, and abdomen on the upper- 
side dark brown, on the under-side covered with grey hairs, the legs 
wholly grey. 
Upper-side: fore-wing of the usual shape in the genus, dark 
brown inclined to sooty, an oval white spot at end of cell; another 
spot, quadrate in form beyond this and between nervures 3 and 4, 
extending partly between 4 and 5; two rounded white spots nearer 
the apex separated by nervure 6; between these and the end of the 
cell is an irregular spot tapering to the costa and crossed by two dark 
nervures. Hind-wing slightly emarginate, dark brown ; a transverse 
white band occupies the disc, but does not reach either margin ; a 
quadrate white spot extends from the middle of the costa to the 
subcostal nervure ; fringes of both wings whitish. 
Under-side : the ground-colour is much paler ; all the spots are 
repeated on a larger scale, and in addition the surface is marbled 
with a number of whitish scales. Exp. 44 mm. 
Mountains of Hatam, 3000 ft. 
EXPLANATION OF Puates III-VI. 
Puate IIT. 
1. Ornithoptera tithonus ¢. p. 16. 
2. Delias africanus, n. sp. p. 18. 
» 38. D. imitator, n. sp. p. 18. 
4, D. elongatus, n. sp. p. 19. 
PLaTE IV. 
. 1. Ornithoptera tithonus Q.  p. 16. 
» 2. Libythea hatami,n. sp. — p. 20. 
PLATE V. 
Ornithoptera rothschildi, n. sp. ¢. p. 17. 
Puate VI. 
Ornithoptera rothschildi, n. sp. Q.  p. 17. 
