1895.] L. de Niceville & Dr. L. Martin —Butterflies of Sumatra. 891 
thousands in some years in a similar manner. Tn other years E. laisidis 
is very rare, and then found near the sea coast (at Laboenn) commoner 
than higher up. The female, on the vivid blue coloration of the upper- 
side of the forewing of which the species is mainly based, is undoubtedly 
a very splendid mimic of Euploea linncei , Moore. 
97. Elymnias ( Melynias ) ceryxoides, de Niceville. 
E. ( Melynias ) ceryxoides , de Niceville, Journ. Bomb. Nat. Hist. Soo., vol. x, p. 22, 
n. 7, pi. S, fig. 13, male (1895). 
Grose Smith as ceryx. Hagen as ceryx, Occurs only on the 
Central Plateau at not less than 3,000 feet elevation, and similarly to 
E. laisidis is found in June and July, but chiefly in December and 
January. Dr. Martin’s brother, Dr. F. Martin, took it on the southern 
extremity of the Toba Lake near Batoe Gadjah, which is higher than 
the plateau. 
98. Elymnias ( Melynias ) erinyes, de Niceville. 
E. (Melynias ) erinyes, de Niceville, Journ. Bomb. Nat. Hist. Soc., vol. x, p. 19, 
n. 5, pi. R, figs. 9, male ; 10, female (1895). 
A very rare species found only in the high forest at Selesseh and 
up to the lower slopes of the hills at Bekantsclian, and in the Battak 
mountains in September. Dr. Martin has obtained three specimens 
only. It is nearly allied to E. casiphone, Hiibner, more closely to 
E. kaviara, Moore. 
99. Elymnias ( Melynias ) dohrnii, de Niceville. 
E. ( Melynias ) dohrnii, de Niceville, Journ. Bomb. Nat. Hist. Soc., vol. x, p. 21, 
n. 6, pi. S, fig. 12, male (1895). 
This species was described from a single male obtained in September, 
1894, at Bohorok near the Battak frontier by Herr M. Ude, the European 
collector of Dr. H. Dohrn of Stettin. As Bohorok is on the way to the 
Gayoe and Allas countries, it is possible that this Elymnias may occur 
there more plentifully, as these regions are quite unknown. It is allied 
to E. patna, Westwood. 
100. Elymnias ( Bruasa ) sumatrana, Wallace. 
Wallace. Kirby. Grose Smith as sumatrana and penanga. Hagen 
as penanga , Westwood, var. sumatrana. Originally described from 
Sumatra. A yery rare species. It occurs in March in the forests near the 
sea together with Euploea eunus , de Niceville. The female may be con¬ 
sidered to be one of the rarest butterflies of our region ; in all the time 
Dr. Martin was in Sumatra he only obtained three specimens, one of 
