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 Athyma. Even now on 

 the frontiers of tobacco-land, as at Selesseli, E. 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. 



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 ou 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. 



