2GG L. de Niceville — List of the Butterflies of the Ke Isles. [No. 2, 



both wings having the white discal band of twice the width. 

 Underside, both icings have the white discal band of the same width as 

 on the upperside, in var. supous the band is wider than on the upperside, 

 though not as wide as in T. triopus. Differs from T. hermes, Grose 

 Smith, Rhop. Ex., pi. Oriental Lycsenidse iv, figs. 7, 8, female (1895), 

 from Korrido and Biak Islands, on the upperside of both wings in having 

 the discal band pure white instead of heavily irrorated with black 

 scales. Underside, both wings have all the metallic green or blue 

 (according to the light) markings much more extensive. Differs from 

 T. apollonius from several localities in New Guinea in my collection on 

 the upperside of both wings in having the discal white band much 

 broader and pure white, instead of narrow, dusky and obscure. On 

 the underside of both ivings the discal band is wider, twice as wide on 

 the hindwing. Male, Indistinguishable from the same sex of 

 T. apollonius. Both sexes tailless. 



The description above shews that this species is based on the 

 female sex only. It has been described from three males and one 

 female. It occurs rarely on Great Ke, and flies about the trees along 

 the banks of mountain streams ; it is found also in high forest in Little 

 Ke Isle. 



55. Thysonitis korion, H. H. Druce and Bethune-Baker. 



T. korion, H. H. Druce and Bethune Baker, Proc. Zool. Soc. Lond., 1893, p. 547, 

 pi. xlvi, fig. 3, male. 



Originally described from the Kei Islands, where it occurs on 

 Little and Great Ke Isles, on the tops of bushes along the roads and 

 paths. The female (hitherto undescribed) has on the upperside of the 

 forewing the costa widely black, extending into the middle of the 

 discoidal cell, the outer margin broadly and increasingly black, the rest 

 of the wing shining blnish-purple, with a white dash on the disc com- 

 mencing on the disco-cellular nervules. Hindwing with the costa widely 

 fuscous mixed with whitish, the outer margin more broadly black than 

 on the forewing, the middle of the wing shining blue. Underside, both 

 wings exactly as in the male. This species has no tails. 



56. Thysonitis illustris, Rober. 



Plebeius illustris, Rober, Iris, vol. i, p. 53, pi. iv, fig. 6, female (1885). 



We have this species from Great Ke only, where it is very rare. 

 Messrs. H. H. Druce and G. T. Bethune-Baker in writing their mono- 

 graph of the genus in Proc. Zool. Soc. Lond., 1893, p. 552, note that 

 " The male only is described," but Herr Rober says his type specimen 



