CASTALIA. 169 



Returning to India, &c., we find several small but interesting 

 genera allied to Apatura. Eulacura, Butler, is represented by 

 E. osteria (Westwood), which is found in Malacca, Java, and 

 Borneo. It measures two and a half inches across the wings, 

 which are brown, with a bluish-white band in the male, not 

 extending to the costa of the fore-wings. The female has 

 a bluish-white sub-marginal line, and a broad and somewhat 

 irregular band of bluish-white within it on the fore-wings. The 

 under surface is bluish-white, varied with pale tawny lines and 

 markings; towards the hinder angle of each wing is a well-marked 

 white or tawny eye, with a black pupil. The fore-wings are 

 much longer than in typical Apatura, the hind-margin being 

 oblique as well as concave ; the hind-wings are regularly curved 

 and dentated. The female much resembles some species of 

 Euthalia and Tanaecia in its style of colouring, but its shape 

 and the eyes of the under side (which in the female are slightly 

 visible above) will distinguish it. 



Dichorragia, Butler, likewise somewhat resembles Euthalia. 

 In the North Indian D. nesimachus (Boisduval) the wings are 

 brown, with zig-zag grey and bluish-grey markings, and many 

 large black spots The wings are broad, the fore-wings with 

 the hind-margin only slightly oblique or concave, and the hind- 

 wings rounded, dentated, and more strongly produced at the 

 anal angle. It expands about three inches. 



Castalia, Moore, is another genus, including species with 

 longer fore-wings, deeply concave below the middle of the 

 hind-margin, and with the hind wings rounded and dentated. 



The fore-wings are black, with bands of orange-tawny and white 

 spots ; the hind-wings are mostly orange-tawny with black veins. 

 On the under surface this portion of the wing is divided by 

 broader black veins and intermixed with white spaces ; towards 

 the base are some pale blue spots. The Butterflies measure 

 about three inches across the wings. 



Q 2 



