BY G. A. WATERHOUSE. 649 



the anal angle is marked with two very black conical spots which 

 are bounded externally with white lines and internally with pale 

 blue crescents. Along the outer margin are faint white lines, 

 and above these are a few pale blue scales. The tails are nearly 

 ^ inch long, black tipped with white; and arise from the sub- 

 median nervure and first median nervule. The pale blue scales 

 on the hindwing only appear so when viewed directly, but when 

 the insect is held obliquely it will be seen that the blue scales are 

 very extensive and are of a very brilliant electric blue colour. 

 Cilia black. 



Under sid e. — The scheme of colouration is as on upperside, 

 but the white is replaced by cream. The marginal blue markings 

 are more extensive and do not change colour when viewed in 

 different directions. These pale blue scales are represented on 

 the forewing by a submarginal narrow band, external to which is 

 a pale line, and in the hindwing by arches between each of the 

 nervules, the legs of these arches being continued down the 

 nervules, while between the median nervules and submedian 

 nervure are four blue lunules; the margin has a distinct white 

 line running along it. 



9. Costa more arched ; apex less acute ; outer margin more 

 convex than in the forewing of the male, and in the hindwing the 

 anal angle is less produced and the tails are shorter. Otherwise 

 as in the male. 



In the available specimens the female is smaller than the male. 



Expanse, g 30-35 mm; 9 22-29 mm. 



This species is probably the Australian form of F. danis, Feld.,"^ 

 from which it differs in having much more white on the upper- 

 side. Felder's figure shows very little white on the upperside, 

 while in the species described the white is of larger extent to the 

 black. It also resembles P. tniJo, G. Smith ct Kirb}^! in general 

 appearance, but that species is described and figured without, or 

 at least with very short, tails (these may have been broken off), 

 and the upperside is without the blue scales of the hindwing. 



* Reise Novara, Lep. ii., p. 240, 11. 273, t. 30, figs. 12-13 (1865). 

 t Rhop. Exot. Lyceen. orient., xi., tigs. 1 and 2, 1897. 



