39 



lection determined by Snellen as L. Perusia Feld. can I find any constant 

 difference between this and L. Atratus Horsf. Felder's illustration of his 

 L. Perusia is also by no means clear. But Druce's Aluta is certainly this 

 species, and also Swinhoe's Atratus. In this species, the underside is again 

 the same in both sexes. 



Horsfield, Cat. Lep. E. I. C, p. 78, No. 23 (1828) . . Lycaena Atratus. 



Felder, Sitz. Ber. d. Wiener Acad., XL, S. 458 1880) . „ Perusia. 



Novara, Lep., S. 274, No. 338, Tab. 34, fig- 4 (1887) 



Druce, Proc. Zoo/. Soc., London, 1 895, /. 579, pi. 32, fio^. 13,14 Nacaduba Aluta. 



SwiNHOE, Lep. Lnd.,V\l\, p. 80, p/. 6^8, fig. 3 — 3c (1810— i i) „ Atrata. 



W. J. Batavia (3 — 14); Buitenzorg (265); Soukaboumi (600); Sindang- 

 laya (1074); Patjet (11 14); mount Salak (780) ; mount Megamendoung (1300) ; 

 Prayangang mountains (1500 — ^1800); vicinity of Pelabouan Ratou or the 

 Wijnkoopsbay {± 150). 



C. J. Touban on the north coast. 



E. J. Kedyry (64) ; Banyouwangy, Pouspa (630) ; Tengger mts. (700). 



The species is common in Java. I see no difference between specimens 

 from W. J. and E. J. 



Larva and pupa are pictured by Moore from Ceylon, and also by Swinhoe. 

 The former is said to live on Erubelia Robusta, and is described as follows : 



The back elevated and the segments most distinctly defined, the anal 

 segment is flattened, the back forms a distinct ridge, the colour is green, but 

 there is a purple line along the ridge of the back; the other segments are 

 also edged with the same colour. The head is small, amber-coloured, with 

 a darker border. The pupa is short and stout, constricted slightly between 

 the thorax and the abdomen, and has slight traces of a ridge along the back. 

 In colour it is a dingy greyish-brown, powdered with black. There is an 

 interrupted dark band along the middle of the back, and also spots of blackish 

 on the abdominal segments and just beyond the wing covers and the sides of 

 the thorax. It is smooth, and only fastened at the tail, parallel to the leaf to 

 which it is attached. 



I once bred a butterfly, determined by Snellen as L. Perusl\, and made 

 the following short notes concerning it. The larva upon very young leaves 

 of raniboutan (Nephelium Lappaceum L.). Pale pink, with a darker dorsal 

 line, and a line on the border of the ventral side of the same colour, under 

 this a faint white line. Larva and pupa of the usual Lycaena form. The 

 pupa of Dec. 4''^ produced a butterfly on the 11"^ of the month. 



