76 LEPIDOPTHRA INDICA. 



violet-brown ; forewing basally glossed with violet-blue, and witli a submarginal 

 upper series of small white spots before the apes. Habitat. Sandakan, North 

 Borneo. 



Genus TRONGA. 



Euploea (Sect. A. part), Distant, Ehop. Malayana, p. 22 (1882). 



Euplcea (Group 5, Sect. C. part), Marshall and De Niceville, Butt, of India, i. p. 76 (1882). 



Tronrja, Moore, Proo. Zool. Soc. Lond. 1883, p. 266. 



Imago. — Male. Forewing broad, elongate, exterior margin short, oblique and 

 slightly uneven ; posterior margin very broadly convex, and thus giving this wing a 

 somewhat quadrate form ; cell long, upper discocellular with a short spur or discoidal 

 veinlet emitted within the cell. No sexual mark on the upperside. On the under- 

 side is a broad greyish-brown patch between the lower median and submedian vein, 

 clothed with somewhat narrow round-tipt scales (smaller than the normal adjacent 

 scales), with numerous intervening very narrow scales, and a few very slender project- 

 ing scales. Hindwing short, apex and exterior margin very convex ; cell broad across 

 the middle, with a large, slightly defined broad spatular patch of slightly adpressed 

 ordinary shaped scales extending through the upper end of the cell along both sides 

 of the subcostal to the disc. Palpi small, short, compactly hirsute, apex short, 

 pointed. 



Type. — T. Crameri. 



TRONGA BREMERI (Plate 19, fig. 1, la, b, c, d, ^ ?). 

 Euplcea Bremen, Felder, "Wien. Entom. Monats. iv. p. 398, J (1860). Butler, Trans. Linn. Soc. Zool. 



1879, p. 535. Distant, Ehop. Malayana, p. 23, pi. 2, fig. 4, S (1882). 

 Crastia Bremeri, Butler, Journ. Linn. Soc. Zool. xiv. p. 298 (1878). 

 Euploea {Crastia) Bremeri, Marshall and De JSTiceville, Butt, of Lidia, i. p. 78 (1882). 

 Tronga Bremeri, Moore, Proc. Zool. Soc. Lond. 1883, p. 267, pi. 29, fig. b, ^ ; id. Journ. Linn. Soc. 



Zool. 1886, p. 30. 

 Tronga Olivacea, Moore, Proc. Zool. Soc. Lond. 1883, p. 267, ? (small var.). 



Imago. — Male. Upperside olivaceous-brown, of a more or less dark tint. 

 Forewing with a submarginal series of prominent white oval spots, the three upper 

 of which are slender and curve inward to the costa, the next below being much 

 larger and elongated, the other five decreasing in size, the lowest being either 

 minute or obsolete; a more or less complete marginal row of very small spots ; a 

 very small spot also on the costa above end of the cell, another within lower end of 

 the cell, one on the disc between the upper and middle median, — another between 

 the middle and lower median veinlets, and sometimes a slender spot also between the 

 upper median and radial. Hinchving with the costal border broadly cinerescent and 

 glossy, covered with widely disposed small narrow round-tipt scales ; a submarginal 

 and marginal series of small white spots, the former series sometimes being ]DOsteriorly 



