ON NEW AND LITTLE-KNOWN BUTTERFLIES. 299 



The female of this species appears to be nearest to the same sex of 

 Tajuria mantra, Felder, of which there is a single example in the 

 collection of the Indian Museum, Calcutta, from Mergui, taken in 

 March bj Dr. J. Anderson. It differs from this specimen, as also from 

 Folder's description and figure, in the small extent of the yellow 

 coloration at the anal angle of the hindwing on the underside. In this 

 respect also it agrees with Hewitson's figure of " lolaus" mantra in 

 111. Diurn. Lep., Lyccenidce, pi. xx, fig. 24, female (1865), which 

 figure appears to have been taken from what Hewitson on page 46, 

 n. 20, calls a " var." from Macassar in Celebes, and is said to have 

 the hindwing on the upperside " all brown," in 0. ogyges it is nearly 

 all blue. Mr. Distant has evidently figured a female from Malacca of 

 the true T. mantra in Rhop. Malay., p. 245, n. 2, pi. xxi, fig. 11 (1884). 

 Tajuria relata, Distant, 1. c, p. 246, n. 3, pi. xxi, fig. 12, female (1884), 

 is perhaps still more nearly allied to 0. ogyges than is T. mantra, 

 but that species differs from the same sex of 0. ogyges in its smaller 

 size, and the greatly curved form of the discal line on the under- 

 side of the forewing ; in 0. ogyges it is almost straight. Mr. Elwes 

 says that T. relata is the same species as " Iolaus" isceus, Hewitson, 

 and in this I think he is right. 



Described from five males and a female in my collection. 



26. (2) OPS (ETA, n. sp., Fl. P, Fig. 38, $. 



Habitat : Maulmain and Daunat Range, Tenasserim, Burma. 



Expanse : $, 1*65 and 1*85 ; <?, 1*80 inches. 



Description : Male. Uppekside, loth wings pale shining (but 

 not iridescent) cerulean-blue. Forewing with the base of the costa 

 pale ochreous, the rest of the costa, the apex very broadly, and the outer 

 margin decreasingly, black ; the large round discal patch of black 

 androconia is not very distinct, but can be seen in some lights as a 

 darker shade. Hindwing with the costa very broadly black, extending 

 as far as the second subcostal nervule ; the outer margin decreasingly 

 black, reduced to a fine anteciliary thread at the third median nervule; 

 anal lobe black, anteriorly obscurely crowned with ferruginous, sprinkled 

 throughout thickly with white scales ; tails black, edged and 



tipped with white ; cilia of both wings fuscous. Undekside, 

 9 



