• EUPLCEIN^. 79 



witli widely-separated long narrow rouud-tipt scales. Hindwing also with a small 

 violet-white cell spot and five discal sjjots, the upper one large and rounded, the two 

 next slender, the others small. Female. Upperside somewhat paler and more 

 olivescent in tint than in male. Both wings with the marginal rows of white spots, 

 the submarginal row on hindwing sometimes obsolescent anteriorly. Forewing also 

 with the costal spot, a small cell spot, and four discal spots, tlie upper and lower of 

 whicli are slender, the latter less defined. Underside marked as in the male. 

 Forewing also with an elongated violet- white streak between the lower median and 

 submedian vein, the posterior border beneath being glossy-cinereous. Sometimes 

 there are also two or three additional upper discal small slender spots. Sody dark 

 brown ; head, palpi, and thorax black, spotted with white ; legs black ; abdomen 

 beneath, with whitish segmental bands and lateral spots. 



Expanse, 3 to 3f inches. 



Habitat. — Nicobars. 



DiSTKiBOTiON. — Occurs on the island of Trinkut, Great Nicobar, Little Nicobar, 

 Nancoury, and Pulo Kondul. 



This species has a great resemblance to Crastia Esperi, also from the Nicobars. 

 but may be distinguished from it by the absence of the sexual mark, and in all the 

 markings being generally smaller. It is also allied to Tronga Niasica. 



Indo-Malayan allied Species oe Teonga. — T. Marsdeni (Moore, P. Z. S. 1883, 

 266). An intermediate form between T. Bremeri and T. Grameri. Figured in 

 " Distant's" Rhop. Malayana, p. 411, pi. 39, fig. 1, $. Hahitat. Singapore. — Tronga 

 Heylcertsii, n. sp. male. Upperside uniform olivaceous-brown. Forewing with a 

 • small white costal spot, one on tlie disc between the middle and lower median 

 veinlets, a submarginal row of nine prominent white spots, the upper three being 

 small and slender, the others large, the fourth largest and oval, the next four angular, 

 the lowest constricted ; a marginal row of small spots. Hindwing with a sub- 

 marginal row of prominent large white spots, the second lower quadrate, the next 

 four conical, the upper rounded ; and a marginal row of small spots. No sexual 

 mark. Underside with similar markings. Forewing also having two lower discal 

 paler spots. Hindwing also with five minute paler discal spots. Expanse, 3^ inches. 

 This species is a mimick of Crastia Distant!. Hahitat. Sumatra (Coll. Staudiuger 

 No. 383).— r. Grameri, Lucas (Moore, Catal. Lep. E.LC. i. 129), of which a figure is 

 given in « Butt, of India," pi. 8, fig. 15,<?. Hahitat. Borneo.— T. Moorei (Butler, 

 P. Z. S. 1866, 277, $). A smaller species, and nearer to T. Broolei. Hahitat. 

 Sumatra.— r. Niasica (Moore, P. Z. S. 1883, 267, s)- Figured in Kheil's " Rhop. 

 Insel Nias," 17, pi. 1. fig. 2, ^ 1884. Hahitat. Nias Island, TV. Coast of Sumatra.— 

 T. Brookei (Moore, P. Z. S. 1883, 268). Comparatively smaller and narrower 

 winged than T. Grameri; of a paler brown colour, and with a violet-blue tint- 



