A EEVISION OF THE OEIENTAL HESPERIHm 305 



The clothing of large flattened scales, which imparts to the hind tibia; of the male 

 in this genus and Ismene their fusiform shape, really forms a case in which the tibial 

 pencil is enclosed. 



We distinguish three species of this genus, of which the diagnostic characters are as 

 follows : — 



1 (4). Pubescence of hind wing above lighter or darker yellow-brown. Upper 



edge of clasp with a spinose lobe near the base. 



2 (3). Outer edge of the pale band on the hind wing below suffused and 



becoming purplish sena, Moore. 



3 (2). Outer edge of the pale band on the hind wing below as sharply defined as 



the inner edge uniformis, n. sp. 



4 (1). Pubescence of the hind wing above bright rust-yellow. No spinose lobe 



on the upper edge of the clasp near the base sambavana, n. sp. 



! BlBASIS SENA. 



Gonilola sena, Moore, P. Z. S. 1865, p. 778. 



Bibasis sena, Moore, Lep. Cey. i. p. 160, pi. Ixv. figs. 3, 3 a (1881) ; Watson, Hesp. Ind. p. 15 



(1891). 



Hah. Sikkim (Moller) ; Khasias {Hamilton) ; Nagas {Doherty) ; N. Canara (Aitken). 



! Bibasis uniformis, n. sp. (Plate XXVII. fig. 95.) 



Ismene sena, var. palawana, Staudinger, Iris, ii. p. 139 (1889). 

 Bibasis sena, var. palawana, Semper, Schmett. Philipp. p. 292 (1892). 



Differs from B. sena in having the outer edge of the white band on the hind wing 

 below as sharply defined as the inner edge. Specimens from Java and Kina Balu, 

 Borneo, have more or less whitish-purple suffusion, sometimes forming one or two spots 

 near the end of the cell on the fore wing below, as in B. sena ; this is entirely wanting 

 in var. palawana, St'gr., which also has the pale subdorsal patch on the fore wing 

 below pure white. 



Hah. Java {ex coll. Snellen); Kina Balu {Waterstradt) ; Palawan {fide Staudinger) ; 

 Luzon {fide Semper). 



The male genitalia of Javan and Bornean specimens agree with those of B. sena, of 

 which this is, doubtless, an insular form. 



.'Bibasis sambavana, n. sp. (Plate XXVII. fig. 96.) 



The single male example of this species is, unfortunately, not in a condition for 

 detailed description, but as it, nevertheless, presents diagnostic characters it has been 

 thought well to point these out. It appears probable that in the colour and pattern of 

 the underside it will prove to resemble B. sena rather than B. uniformis ; but, however 

 this may be, it is readily distinguished from either by the bright rust-yellow hairy 



