DELIAS. 169 



wing from the middle of the discoidal cell appear almost 

 entirely reddish-brown, with broad black nervures, and a black 

 border. 



The type of the genus Delias is 



DELIAS EGIALEA. 



Papilio cgialea, Cramer, Pap. Exot. ii. pi. 189, figs. D, E (1777); 



iii.pl. 256, figs. E, F(i779> 



Pieris egialea, Boisduval, Spec. Gdn. Le'pid. p. 450 (1836). 

 Delias egialea, Staudinger, Exot. Schmett. i. p. 34, pi. 20 



This Butterfly, which is common in Java and Sumatra, 

 measures two inches and a half across the wings, or a little 

 more. The male is bluish-white, dusted with blackish at the 

 base ; the costa and apical half of the fore-wings (narrowing to 

 the hinder angle), and a broad border to the hind-wings, are 

 black ; the inner- margin of the hind-wings is tinged with 

 yellow, especially towards the anal angle. On the under side, 

 the fore-wings are brown, with a white band, narrower and 

 whiter than above ; the hind- wings are red at the base, beyond 

 which they are yellow, partly divided into spots by broad black 

 incrassated nervures, and bordered with black. The female 

 has black fore-wings, with a broad orange central band above 

 and below ; the hind-wings are white above, shading into yel- 

 low on the basal half, and black beyond ; on the under side 

 they resemble the male, except that the yellow portion is re- 

 placed by orange. 



AUSTRO-MALAYAN SPECIES OF DELIAS. 



Some of these species are remarkably handsome. One of 

 the most beautiful is D. aruna (Boisduval), which inhabits 

 Papua and the Moluccas. It has broad wings, measuring up- 



