286 On some East- African Lycgenidse. 



shade and in the fore wing less extensive, but half occupying 

 the cell and not reaching beyond the first median nervule ; 

 the inner margin is not white-edged, and in the hind wing 

 the shining patch is darker in colour and rather less exten- 

 sive. Underside differs from that of E. iasis by the fore 

 wing having a distinct black line closing the end of the cell, 

 and beyond this two distinct transverse black lines — the first, 

 which corresponds with that in E. iasis, thin and dark ; the 

 second, which is placed halfway between this line and the 

 outer margin, paler and broader. 



Hind wing as in E. iasis, but the spots and metallic patches 

 larger and the black lines more distinct. Thorax and abdomen 

 greyish above, white below. Legs white, with black spots. 

 Palpi white, with black tips ; frons deep orange. Antennae 

 black, with white rings. 



Expanse If inch. 



Hab. Dar-es-Salaam. Type Mus. Druce. 



The tuft of hair on inner margin of fore wings below, which 

 in E. iasis and iaspis, mihi, is black, is in E. mermis white, 

 and the hind wing is of a different shape, not being so pro- 

 duced at the anal angle, and consequently less triangular. It 

 is also much like Iolaus silanus, Grose Smith, from Mombasa, 

 the type of which Mr. Grose Smith has kindly shown me, on 

 the underside, but on the upperside it is distinguished at once 

 by its much paler blue, by the less extensive colour on the 

 fore wing, and by the entire absence of the black spots at the 

 anal angle of the hind wing. I think it probable that on a 

 close examination /. silanus will be found to belong to the 

 genus Epamera. 



Argiolaus silas, Westw. 



Local race lalos, nov. 



<?. Upperside differs from typical A. silas by the black 

 outer margins being narrower and by the almost entire absence 

 of the black and red spots between the nervules at the anal 

 angle of the hind wing. 



$ . Differs on the upperside from that sex of typical silas 

 by having large pure white discal areas to both wings and by 

 the orange band being confined to the two lower interspaces, 

 the pale blue dusting being restricted to the bases of both 

 wings. Underside as in A. silas. 



Expanse, $ ? 1-j 5 ^— 2 inches. 



Dar-es-Salaam. Type Mus. Druce. 



