1895.] L. de Niceville & Dr. L. Martin — Butterflies of Sumatra. 371 



have on the upperside of the forewing a short and sometimes even a 

 quite distinct and longer " male- mark." The genus Tronga comes into 

 Mr. Moore's group A of the Euploeina, which is defined as having " No 

 ' sexual-mark ' or scent-producing organ on forewing." But there are 

 many exceptions to this definition. 



20. Euplcba. (Tronga) MOOREr, Butler. 



Butler. Kirby. Moore. This species may be distinguished from 

 E. bremeri, Felder, by its smaller size, the duller colour of the upperside of 

 both wings, being brown, not black, with all the white spots smaller. It 

 never shews any traces of a " male-mark." It occurs in the plains about 

 equally commonly as £7. bremeri, though it is found also at somewhat 

 greater elevations in the hills, occurring even on the Central Plateau ; 

 these latter specimens show only very few white spots. 



21. * Ecplcea (Tronga) HErLiERTSir, Moore. 

 Tronga heylcertsii, Moore, Lep. Ind., vol. i, p. 79 (1890). 



Moore. Described from Sumatra, but we have failed to recognise 

 it. 



22. Euplcea (Adigama) malayica, Butler. 



Euplcea ochsenheiineri, Lucas, Snellen, Midden-Sumatra, Lepidoptera, p. 12, n. 1, 

 pi. ii, figs. 1, 2, male (1892). 



Grose Smith as ochsenheimeieri [sic]. Moore. Snellen as ochsen- 

 heimeri, Lucas. Hagen as ochsenheimeri, Butler and Lucas. Staudinger. 

 Distant. This beautiful and large species is found only in the deep forests 

 of the plains, never higher than Namoe Oekor. It flies mostly alone high 

 over the small openings in the evergreen forests, and is found all the year 

 round, but never in large numbers. There has been much confusion 

 regarding the name Euploea ochsenheimeri. Two species have been so 

 called, one by Lucas in 1853, and one by Moore in 1857, both from Java. 

 Mr. Moore places his own species in the genus Adiyama, and Lucas' 

 iu Tirana. There has been no Euplcea named ochsenheimeri by Butler, 

 as stated by Dr. Hagen. To further complicate matters, Snellen figures 

 E. malayica, Butler, as E. ochsenheimeri, Lucas, with which it has 

 nothing w ha* ever in common. 



23. *Euplo;a {Andasena) Belinda, Butler. 



Euplcea belinda, Butler, Journ. Linn. Soc. Lond., Zoology, vol. xiv, p. 299, 

 n. 2 (1878). 



Butler. Moore. Originally described from Sumatra. We have seen 

 no Euplcea from Sumatra belonging to the subgenus Andasena. 

 J. n. 47 



