400 L. de Niceville & Dr. L. Martin — Butterflies of Sumatra. [No. 3, 
a fairly common insect, of which the males often escaped capture by 
being mistaken for a still commoner species of Athyrna. Even now on 
the frontiers of tobacco-land, as at Selesseh, F. halitherses is not rare, 
only the females are scarce. The males have a strong short flight 
like species of Athyma , whereas the females on the wing mimic different 
species of Euploea, having a slow and sailing motion. Dr. Martin pos¬ 
sesses a single male almost without white markings on the upperside 
of the forewing, which for a long time he thought represented a second 
species, but as he never obtained a second specimen, it is probably an 
aberration. E. halitherses extends from Bindjei to Bekantschan, and 
is found only in forests. ^ 
4 / 
127. Cupha erymanthis, Drury. 
Snellen. Hagen. Occurs everywhere all the year round in ever 
following generations. Wherever a small piece of forest has been spared, 
there this is one of the first Rhopalocera to be found. It is very fond of 
flowers, but is shy, and has a restless flight. 
128. Atella sinha, Kollar. 
Snellen as egista. Hagen as egista. Grose Smith. Wallace. Dis¬ 
tant. I have never seen A. egista, Cramer, which was described from 
Amboina, and recorded from Amboina, Bouru, Batchian, Morty, and 
New Guinea by Dr. A. R. Wallace. A. sinha is the rarest of the Atellas 
occurring in Sumatra, is found both in the plains and hills, has a very 
quick flight, and is not easily captured except when settled on a flower or 
on a moist spot on a forest road where it can be “ potted ” with. the. net, 
129. Atella phalantha, Drury. 
Snellen. Hagen as phalanta [sic], Horsfield and Moore [sic]. Dis¬ 
tant as phalanta [sic]. Occurs only at low elevations, often very near 
to the sea, frequents flowers, and is not easily caught from its shy 
restless habits and quick flight. It is very common throughout the year. 
130. Atella alcippe, Cramer. 
Snellen. Hagen. Grose Smith as aruana [sic]. The A. arruana 
of Felder, from the Aru Isles (Felder), Mysol (Wallace), is a local race 
of A. alcippe . Found in Sumatra at higher elevations than the two 
foregoing species, even as high or higher than Bekantschan. Never 
seen in Deli, and never on black soil which is so favourable for 
tobacco, but as soon as there is red soil, as in Langkat and Serdang, 
one may be sure to meet A. alcippe on damp places in forest roads. It 
is very common near Selesseh. 
