668 MR. H. H. DRUCE ON BORNEAN LYCENIDE. [June 16, 
@. Upperside : both wings bright violet-blue; primaries with a 
dark spot at the end of the cell and exceedingly broad brown 
margins all round; costa brown to the cell, and almost to the 
upper median nervule; secondaries with exceedingly broad costa 
and very broad outer and abdominal margins. Underside exactly 
like the male, but darker in colour. 
This species will precede A. arsenius, Feld. 
ARHOPALA WATERSTRADTI, sp. n., Bethune-Baker. (Plate XXX. 
figs. 10 g,11 9.) 
Kina Balu. 
Expanse, ¢ 42, 2 40 millim. 
3. Upperside: both wings lustrous bright blue tinged with 
violet, in some lights the colour being dark violet-blue ; primaries 
with costa narrowly, and outer margin less narrowly black ; 
secondaries with costa less broadly than usual, and outer margin 
very narrowly black. Underside brown, with slightly darker spots 
palely edged. Primaries with pattern rather indistinct, with three 
increasing cell-spots, the first near the base, below the second is an 
indistinct and indefinite spot, and below the third is a small indis- 
tinct one: transverse catenulated band composed of six spots, 
ending on the lower median nervule; the upper four are each 
inclined obliquely outwards, but not fractured ; the fifth is shifted 
inwards very slightly as to its outer, but more so as to its inner 
margin; the fifth is shifted outwards; submarginal band very 
indistinct ; submedian area paler. Secondaries with pattern more 
distinct than in primaries ; four basal ‘spots below each other, the 
third shifted outwards, followed by three larger spots below each 
other ; cell closed by a subquadrate spot, below which is a small 
spot in the lower median angle: transverse catenulated band com- 
posed of eight spots from the costal nervure ; the second largish, 
shifted well outwards and slightly dislocated from the third, which 
is shifted right outwards; fourth shifted outwards again; fifth 
inwards, and having a very oval exterior margin; sixth outwards, 
with a straight margin; seventh angular spot dislocated right 
inwards, eighth slightly inwards ; submarginal row fairly distinct ; 
eo area darker, with superimposed pale bluish-green metallic 
scales. 
Q. Upperside: both wings bright lustrous azure; primaries 
with rather broad costa and very broad black outer margins ; 
secondaries with broad even black margins all round; abdominal 
fold greyish. Underside just like the male, with two exceptions, 
viz., that there is a trace of a spot on the costa over the third cell- 
spot in the primaries, and in the secondaries the second and third 
spots of the transverse band are not dislocated. All the other 
markings are exactly the same in every particular. 
This species will follow A. metamuta, Hew., but it can easily be 
distinguished by both wings being the same colour. 
Types, e mus. Staudinger. 
