189].] W. Doherty — A List oj the Butterflies of Eng an o. 23 
8. Danais pietersii, n. sp. PI. I, Fig. 1. Male and female, above 
black, forewing with the lower part of the cell, the basal part of the lower 
median, and the greater part of the interno-median space dull ferrugi- 
nous, the veins black. Margin touched with white at intervals ; a line of 
four submarginal white dots in the median spaces; another larger and 
diffused near the lower angle ; an inner line of seven white marks, of 
which the pair in the upper median space is of some size, the other 
dots : a subapical band of six widely-separated diffused whitish spots 
from the costa, the lower two largest ; below these two obscure spots in 
the upper median space. Hindwing black, a large, pale ferruginous 
area in the cell, and others in the submedian and internal spaces extend- 
ing three-fourths towards the margin ; shorter, slender ferruginous 
streaks in the other discal spaces : two lines of submarginal whitish 
dots mostly obsolete, more distinct in the median spaces ; cilia alternate- 
ly black and white. Below, similarly marked but with the spots more 
distinct and numerous and violet- white instead of whitish; the lower 
part of the forewing ferruginous, the apex, as well as the outer part of 
the hindwing, suffused, with dull, dark reddish, which takes the place 
of the black. Hindwing, with pale ferruginous areas in all the spaces, 
most of them bordered with silvery white, the veins dark ; the two sub- 
marginal series of the white spots distinct and complete. In some 
specimens the cell is nearly white, the inner ferruginous area evan- 
escent. 
I am not able to compare this species with D. eurydice from Nias, 
but judging from the forms with which Mr. Butler compares it, that 
species is without the ferruginous areas on the hindwing above. 
I name this for my kind friend Mijnlieer Pieters, Controleur of 
Kroe in Sumatra. It is a common and conspicuous species in Engano, 
whereas Herr Kheil describes D. eurydice as rare in Nias. 
9. Danais (Bahora) chrysea, n. sp. Ph I, Fig. 3. A local form of D. 
philomela from Java, differing in the subapical spots being more elongate, 
and in all the markings of the forewing being yellow except the two outer 
series, the yellow area of the coll heavily clouded with black scales except 
at its lower angle, in this resembling D. crocea. The interno-median 
yellow area shows is divided by a line of black scales in the middle, the 
quadrate discal spots are partly joined, as in crocea. Hindwing marked 
as in crocea and coloured as in philomela. The wings are very long and 
narrow. The female has the yellow area more restricted, all the spots 
larger and more conspicuous. 
I think I saw Parantica aglaia, or its representative, on the day of 
my arrival at Engano, but no specimens were taken. 
