298 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. IX. 



25. (1) OPS OGYGES, n. sp., PI. P, Figs. 36, $; 37, ? . 



Habitat : Maulmain, Tenasserim, Burma. 



Expanse : #, 1*6 to 1*8 ; 9 , 1*9 inches. 



Description : Male. Upperside, both wings iridescent pale cerulean- 

 blue in some lights, iridescent emerald-green in other lights. Forewing 

 with the base of the costa pale ochreous ; the outer half of the discoidal 

 cell, the apex very broadly, and the outer margin decreasingly black ; 

 in certain lights the large circular patch of shining fuscous androconia 

 is very prominent. Hindwing with the costa broadly black, the abdo- 

 minal margin broadly whitish, the outer margin with an anteciliary 

 black thread ; the anal lobe black, powdered over with white scales, 

 and bearing inwardly a small ferruginous patch ; tails black, tipped 

 with white ; cilia of both wings black. Underside, both wings dull 

 brownish-fuscous, of almost the same shade as in Camena cleobis, 

 Godart ; an outer discal or submarginal prominent narrow dark 

 fuscous line ; a very indistinct marginal fascia. Forewing with 

 the discal line nearly straight, only slightly outwardly curved, 

 commencing on the subcostal nervure beyond the point where 

 the third subcostal nervule arises, ending on the submedian nervure. 

 Hindwing has the discal line quite straight from the costa to the third 

 median nervule, afterwards to the abdominial margin it is regularly 

 zigzagged ; a small round black spot in the first median interspace 

 well removed from the outer margin, inwardly crowned narrowly with 

 orange, outwardly bearing some metallic turquoise-blue scales ; the 

 next interspace bears on the margin a few turquoise-blue scales touch- 

 ing the submedian nervure ; the anal lobe bears a moderately-sized round 

 black spot, narrowly anteriorly crowned with orange, outwardly with 

 some metallic turquoise-blue scales ; a narrow black anteciliary line ; 

 cilia of both wings of the colour of the ground of the wings. Body 

 above throughout very hairy, pale blue, the abdomen beneath ochreous. 

 Female. Upperside, both wings pale dull blue without any metallic 

 lustre whatever. Forewing with the blue coloration of much greater 

 extent than in the male, owing to the absence of the " male-mark," 

 and occupying the whole of the discoidal cell. Hindwing with traces 

 of a submarginal black band ; an indistinct round black spot in the 

 first median interspace. Otherwise as in the male. 



