168 On tivo new Species of Acrasa from Mombasa. 



grey, narrowly irrorated internally with ochreous, and on the 

 outer margin of posterior wings, where there is a row of 

 ochreous lunules capped with grey between the veins ; the 

 spots and markings on the underside of posterior wings show- 

 ing through ; both wings tinged with brown at the base. 



Underside. Posterior wings with the outer row of marginal 

 lunules almost white, bordered all round with black ; an irre- 

 gular row of black spots across the disk ; two black spots on 

 the discocellular nervules, two others inside the cell towards 

 the base, one above the subcostal nervure, one below the 

 median nervure, two others below the submedian and internal 

 nervures respectively, and one above the costal nervure, the 

 last-named five spots all near the base ; the space inside the 

 precostal nervure, the base of the wings, and abdominal fold 

 pink, shading to white. 



The female resembles the male, but is rather larger. 



Expanse of wings 2| inches. 



Hab. Voi River, interior of Mombasa (Last) . 



Acrcea avui. 



Male. — Upperside. Anterior wings bright fulvous-ocbreous, 

 with the base to the extent of one third of the wings, costal 

 margin, apex, hind margin, and a broad transverse band from 

 beyond the middle of costal margin to the middle of the hind 

 margin black. Posterior wings same colour, slightly paler 

 towards the abdominal fold, with the base and outer margin 

 broadly black. 



Underside. Anterior wings paler fulvous-ochreous, dusky 

 towards the base, crossed beyond the middle by a black baud 

 as on the upperside ; costal margin narrowly, apex and hind 

 margin broadly, black. Posterior wings paler ; a band of 

 black spots before the middle, a cluster of black spots at the 

 base ; a rather broad marginal black band, in which, on the 

 margin between the veins, is a row of ochreous lunules. 



Female resembles the male, but less black at the base, and 

 on the inner margin of the anterior wings, from the base to 

 the middle, is a rather broad black band, and on the poste- 

 rior wings the colour shades from the middle to the abdo- 

 minal fold to pale ochreous. 



Expanse of wings lj inch. 



Nearest to A. eponina, Cram. 



Hab. Yoi River, Mombasa (Last). 



