162 
ol4. 
A LIST OF THE BUTTERFLIES OF BORNEO, 
It seems to be a local species in Sarawak, only a single female 
having found her way to the Sarawak Museum previous to 
1909. Since then some 20 or 30 have been taken in one 
locality near Kuching, but curiously enough only one male 
among them. 
The females vary somewhat in the extent of blue on upper- 
side of hind-wing; in some, reaching almost to hind-margin, 
in others almost obsolete. 
Injury. 2, asmall piece out of each hind-wing just above 
the anal angle, probably the result of one bite when the insect 
was at rest with wings closed. 
Genus, BipuaNnpDA, Distant. 
Biduanda thesmia, Hew. 
Myrina thesmia, Hewitson, Ill. Diurn. Lep. Lye. p. 
pl. XIV. figs. 25-27 (1863) 
Drupadia es Moore, Journ. As. Soc. Beng. Vol. 
PX ot. 25 pear (1884). 
Labuan (Low and Wahnes); Sarawak (Wallace) ; Lawas, 
ulu Limbang, Simanggang, Sadong, Mt. Matang and Kuching 
(Sar. Mus.). 
Distribution: Burma, Malay Peninsula, Nias, Sumatra and 
Palawan. 
dl4a. Var. unicolor, Staudinger. 
ol 
D. 
Sithon thesmia var. wnicolor, Staud., Iris, Il. p. 111, 
(1889). | 
Staudinger describes this variety as differmg from the 
typical form in the underside b eing dull reddish brown in place 
of rufous orange. Druce reports this form as common in 
Borneo and gives the following localities for it :— 
Sandakan (Pryer) ; Nudat (Mus. Druce) ; Mt. Kina Balu 
(Waterstradt) ; Labuan (Low). 
A long series in the Sarawak Museum shows a complete 
gradation between the two forms, the typical form being per- 
haps predominant. I have taken both’ forms in one day on 
Sadong hill. The majority of males are without the dark 
orange discal patch on upperside of fore-wing. 
Injury. 6, a small piece from anal angle of the right 
hind-wing. 
Biduanda estella, Hew. 
Sithon estella, Hewitson, Il. Diurn. Lep. Lye. p. 31, 
EVE ess 5 Oh ole (GlS63)e 
Biduanda estella, var. H. H. Druce, Proce. Zool. Soe. 
Lond. p. 614 (1895). 
Mt. Kina Balu (Waterstradt). 
Jour. Straits Branch 
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