BY G. A. WATERHOUSE. 191 



outer margins, the more acute apex of forewing in .-J, and the 

 produced, slightly tailled hindwing; the palpi are shorter in both 

 sexes. 



I can recognise three Australian species as clearly belongin,"' 

 to this genus, and liave included a fourth which appears to be 

 best placed here, though it has a slightly different neuration and 

 shape. 



The species may be thus distinguished : — 



A. Upperside of both sexes above blue, below grey cUgrjlesi. 



B. Upperside of ^ black; of $ brown, with outer ^ of hind- 



wing yellow, underside whitish eo)ie. 



C. Upperside of both sexes black, with centrobasal blue areas 



usually on forewing only, underside white fumiclus. 



D. Upperside brown, with basal blue areas in $ , underside 



brown hrishanensis. 



PsEUDODiPSAS EONE, Felder (Plate ii., figs. 14-15). 



Wien. Ent. Mon. iv. p. 243, 1860; Reise, Nov. Lep. ii. p. 258, 

 t. 32, f. 8, 9, 1865; Semp., Mus. Godf. Lep. xiv. p. 164, 1878. 



t^. 12mm, Upperside. — Foreimng black, with a faint 

 purplish sheen. Hindwing black, with a faint purplish sheen, 

 three white submarginal spots between submedian nervure and 

 first, second and median nervules; an interrupted marginal white 

 line. Cilia white. Long white hairs on abdominal fold. 



Underside. — Foretving silvery white, with pale brown 

 markings; one dark subbasal brown spot in cell, below which ex- 

 ternal to cell is another dark spot; a light brown oblong spot in 

 middle of cell, and a similar one at end of cell; a faint short sub- 

 apical band and a submarginal band of pale brown spots; margin 

 marked with brown, internal to which are brown suffusions. 

 Cilia brown. Hindwing silvery white, with pale brown markings; 

 a subbasal row of four brown spots darker than the rest, first 

 above cell, second in cell, third below cell, fourth very close to 

 inner margin; a pale brown spot in middle of cell above and below 

 which are other spots, and one at end of cell; margin defined by 

 a dark brown line, internal to which is a marginal series of 



