BY G. A. WATERIIOUSE. 153 



distinguished from D. taygetus by the paler l^lue in the male and 

 by the chequered cilia in both sexes." 



I have lately seen a specimen (9) from Cooktown lent me l^y 

 Mr. Lower; it certainly has white, slightly chequered cilia, and 

 though not altogether agreeing with the above description, does 

 so in some respects. It further causes me to doubt the specific 

 distinctness of this species but, in deference to Mr. Druce's 

 opinion, I keep them separate. 



Danis arinia, Oberthiir. 



Cwpido arinia, Oberth., Ann. Mus. Civ. Genov. xii. p. 465, 1878; 

 I.e. XV. p. 523, 1880 : Thysonotis arinia, Druce & Baker, P.Z.S. 

 1893, p. 550, pi. xlvi., figs. 6, 7 : D. cyanea, Hemp, (nee Cram.), 

 Mus. Godf. Lep. xiv. p. 155, 1878; Misk. (nee Cram.), Syn. Cat, 

 Rhop. Aust. p. 50, 1891 : D. albastola, Lucas, Proc. R. Soe. Qsld. 

 vi. p. 156, figs. 3, 4, 1889. 



$. 16-19 mm. (18). Shape of wings as in Z>. taygetus g rather 

 than D. seraj^is ^, with a long thin tail at the extremity of the 

 first median nervule of the hindwing. 



U ppers ide. — Forewing uniform shining purplish-blue (darker 

 than in D. taygetas) with a very narrow black costal margin and 

 a broader uniform black outer margin; end of cell marked by 

 a whitish suffusion more or less developed. Cilia black, more or 

 less edged with white. Hindwing uniform shining purj)lish-blue, 

 with a fairly broad outer black margin, between costa and sub- 

 costal nervule white. Tail long, black, tipped with white. Cilia 

 black edged with white. 



Underside. — Forewing white, with black costal and outer 

 margins, costa at base narrowly white, black costal margin 

 beginning at base runs uniformly in width to apex and round to 

 median nervure when it increases in size by three steps to inner 

 margin; outer margin faintly marked with white, a submarginal 

 white band beginning from below apex and increasing in size to 

 inner margin. Cilia black. There are no metallic scales. Hind- 

 wing with costa white, basally sprinkled with metallic scales; a 

 subbasal broad black bar; a broad white bar from costa to inner 



