{, a79 ) 



with grey rings; beyond the middle is a forked broad transverse white band and 

 irregular patches of white beyond running tu terinen ; from the middle of the 

 wing to termen are four or five somewhat irregular rows of metallic pale yellow 



spots, dots and streaks edged with grey. -Hind wing yellowish earth-brown, 



with some indistinct dots; basal third clotiied with rough yellow hair, fringe 

 yellow. 



Length of forewing : 36 mm. 



IJab. Bolauberg, German New Guinea, oOoO m. (Keysser coll.). 



NOTES ON IXIAS UNDATUS BUTLER WITH THE 

 DESCllIPTION OF THE UNKNOWN FEMALE. 



By THE Ho*. W. ROTHSCHILD, F.E.S., Ph.D. 



TN 8eitz, Die GroxsxclimMerlii)yc drr Erdc, vol. ix., p. Li'.) (IL Abtl. Indo- 

 J- australica), H. Fruhstorfer describes undatm Butl., placing it as a sub- 

 species oi pijrene. Liuu. In the widest acceptance of that term it perhaps would 

 be right if we considered it as such, because it undoubtedly replaces jii/renc in 

 Borneo, but the discovery of the ? described below makes me give it full specific 

 rank. I do this because the ? on the underside is quite unlike any other Lvias, 

 and is in appearance a mimic of Prioneris conieUa Vollh. 



Ixias undatus Butl. ?. 



Upjjerside : Forewing creamy white, apical one-fourth black, narrowing at 

 tornus, with white patches between veins 2 and 3, and 3 and 4, basal half of costal 



area pale grey, nervures from 4 to 11 black, a large black discocellular stigma. 



Hindwing creamy white, a black marginal band strongly crenulated along inside 

 edge, and the black colour running into the wings along the nervures. 



Underxide : Forewing cream-white, nervures almost entirely brownish black, 

 costal area brownish black varied witli cream-white, the very wide outer margin 



brownish black much broken into and variegated with white. -Hindwing, basal 



three-fourths golden yellow, nervures and a few scattered scales brownish black, 

 outer one-fourth brownish black. 



JIah. Kina Balu, North Borneo, December 18'J8— February 1809 (J. 

 Waterstradt). 



The is accompanying this specimen dirter from Butler's type in having the 

 border of the hindwings much narrower. They are identical with l?arnin River 

 KI)ecimens, and evidently represent the dry-season form. 



