1895.] L. de Niceville & Dr. L. Martin — Butterflies of Sumatra. 451 



319. Una usta, Distant. 



Habitat : Cachar ; Myitta and the Daunat Range, Tenasserim, 

 Burma; the Malay Peninsula ; N.-E. Sumatra. 



Expanse : $ , '95 of an inch. 



Description : Female. Upperside, forewing with the costa, apes, 

 and outer margin broadly brown, the posterior half of the cliscoidal cell 

 to the inner margin delicate cerulean-blue, which becomes slightly 

 darker towards the base of the wing. Hindiving brown, with the ex- 

 ception of a linear spot in the outer half of the discoidal cell, which is 

 covered with bluish scales. Underside, both wi?igs as in the male, only 

 somewhat paler. Cilia grey-brown. Abdomen on the underside yellowish- 

 white. 



Found in Sumatra at Bekantschan and in the Battak mountains 

 from whence the unique female described above in Dr. Martin's collec- 

 tion was captured in December, 1894. It is never common, but is more 

 plentiful on the river banks at Soeugei Batoe in August and September 

 than elsewhere. 



320. Neopithecops zalmora, Butler. 



To the synonyms of this species already given in Butt. India, 

 vol. iii, p. 53 (Pithecops dharma, Moore ; Parapithecops gaura, Moore ; 

 and Neopithecops horsfieldi, Distant), may now be added Gupido talmora 

 Druce, Proc. Zool. Soc. Lond., 1873, p. 318, n. 4, from Borneo (this 

 species appears to be a MS. name of Mr. Butler's which was never 

 published), and Plebeius lucifer, liober, Iris, vol. i, p. 61, pi. iv, fig. 5 

 (1888), from the Aru and Key Isles, of which Herr Rober has kindly 

 sent me a specimen from Aru. In Sumatra it is found over our whole 

 area, in the plains (Stabat) and in the mountains (Bekantschan), but 

 is never as common as P. hylax, Fabricius. The female, says Dr. Mar- 

 tin, possesses on the upperside of the forewing beyond the discoidal 

 cell a faint blue patch similar to that in the same sex of P. marine, 

 de Niceville. 



321. Spalgis nubilus, Moore. 



Originally described from the Andaman Isles. It may be known 

 from the common Indian and Geylonese S- epius, Westwood, by the 

 discal spot on the upperside of the forewing in the male being ochreous 

 instead of whitish ; the female of S. nubilus is marked like the male, in 

 S- epius the female has the disc of both wings on the upperside more or 

 less whitish. S. nubilus is also found in Burma, Java, and Borneo. Mr 

 Moore has incorrectly recorded S. epius from Mergui, Lower Burma 

 the species should be S. nubilus, which occurs in Burma as far north 

 J. ii. 57 



