( 340 ) 



on forewing, excejit that the two rows of iirrow-sbuped white markings are some- 

 what confused together, and the fourth, fifth and sixth of the inner row are 

 specially large. A well-marked orange spot between first and second median 

 nervules, with a black pujiil placed distally, the pupil partially outlined with 

 glistening blue scales. A trace of orange colour at anal angle. Fringe as on 

 upperside, except dusky brown patches more pronounced. Abdomen dusky black 

 above, paler beneath, with trace of orange at apex. 



Expanse, 27 mm. 



1 (?, Nyangori, March 26th, 1903. 



Allied to C. maluthnna Boisd. = a.'^opng Hoi)fF. Differs in blue sheen on 

 npperside and in distinctness and distribution of markings on underside. 



2."). Castalius usemia spec. nov. (PI. I. f. 11). 



(??. AVhite with black margin. 



Upperside. Forewing white. A wide basal black suffusion well defined 



externally. Costa and distal margin and outer part of discal area suffused with 

 black. At extremity of cell a denticulate black projection from costal margin 

 invades white area. Black outer discal area and apical border isolate a some- 

 what elongated white spot, smaller than in C. gregori Butler. Smaller white 

 spots may be present both above and below this spot. Fused discal and distal 



marginal black border is broader below first median nervule than above it. 



Hindwing black at base, with external edge of black suffusion exactly coinciding 

 with that of forewing, thus differing markedly from ('. gregori. Discal and 

 distal marginal black fused, projecting inwardly along costa at apex, inclosing 

 traces of white dots toward discal area. On distal margin, especially at anal 

 angle, a narrow interrupted white line. Small black tail tipped with white at 

 second median nervule. Fringe of both wings grey. 



Underside. Forewing : black markings broken up into streaks and dots. 



Across base a black streak from costa before middle, and parallel and close 

 to it a similar shorter streak starting from about middle of interior of cell ; 

 This latter streak is sometimes continuous with, but generally separated from, 

 a short transverse marking in the shape of a triangle with its base on the costa 

 and its apex at the origin of the third radial nervule. Between these two points 

 the marking crosses the apex of the cell. An irregular but well-marked discal 

 transverse streak, emitting a well-marked projection outward between radial 

 nervules, interrupted at first median nervule and continuing to inner margin 

 nearer base of wing. A submarginal black streak becoming fused with discal 

 streak about first median nervule. A distal marginal row of six small black 



spots bounded by a l)lack edging line. Hindwing : two short black streaks 



across base ; outermost and longest coinciding with outer one of forewing. Discal 

 stripe widely interrui)ted between second subcostal and radial nervules. Sub- 

 marginal stripe somewliat irregular, and becoming fused with discal at third 

 radial nervule. Six spots with a black margin as in forewing, but fonr spots 

 nearest anal angle outlined in glistening blue ; on inner margin, a little be3-ond 

 middle, a small black rectangular spot. 



Abdomen striped black and white above, white below. 

 Expanse, 26 pim. 



