176 A LIST OF THE BUTTERFLIES OF BORNEO. 
Genus, Srntiusa, Moore. 
5o4. Sinthusa nasaka, Horsfield. 
Thecla nasaka, Horsfield, Cat. Lep. EK. I. C. p. 91 (1829). 
Mt. Kina Balu (Waterstradt) ; 8. Borneo (Ind. Mus.). 
Druce considers this species synonymous with the next (S. 
amba, IXirby). 
Distribution; India, Sikkim, Assam, Sumatra and Java. 
Dy 
U 
OX 
Sinthusa amba, Wirby. 
Hypolycaena amba, Wirby, Ill. Diurn. Lep. Lye. Supp. 
p. 32, ‘pl. V..b, figs. 44-46 (1878). 
Sandakan (Pryer); Bidi (Sar. Mus.). , 
Distribution: Mergui, Myitta, Burma, Malay Peninsula and 
Sumatra. 
A single female in the Sarawak Museum, which agrees well 
with Kirby’s deserption. 
556. Sinthusa amata, Distant. 
Sinthusa amata, Distant, Rhop. Malay. p. 461, pl. XLIY. 
fis. 20, 2 (1886). 
Sinthusa amata, H. H. Druce, Proc. Zool. Soe. Lond. p. 
625, 6 (1895). 
Mt. Kina Balu (Waterstradt) ; Kiou (Hanitsch) ; Kuching, 
Bidi, Tegora (Sar. Mus.). 
Distribution: Penang. 
Sarawak examples taken from September to December and 
one in March. The males agree well with Mr. Druce’s des- 
cription. 
[Part IV of “The Butterflies of Borneo” dealing with the 
Papilionidae (Pierinae and Papilioninae) is in course of pre- 
paration |. 
Jour. Straits Branch R. A. Soc., No. 60, I91I. . 
