438 Dr. A. G. Butler on new African Pierine. 
Belenors occidentis, sp. n. 
Allied to B. westwood’, but distinctly larger, the apical area of the 
primaries irrorated with grey, the outer border greyer than in 
B. westwoodi, the irregular transverse subapical band interrupted 
in the middle ; the veins blackened to the cell, excepting the first 
two median branches ; the discocellular black bars continued round 
the end of the cell as far as or beyond the emission of the second 
median branch ; secondaries with a well-defined black discocellular 
dash and several black traces of the discal markings of the under sur- 
face; black marginal spots and fringe as usnal. On the under surface 
nearly the whole of the veins are brown, darker on the primaries ; 
in the wet phase the primaries show a grey basal patch terminating 
in a black discoidal streak ; the black discocellular bar is continued 
broadly to the first median branch along which it runs to the 
middle, so that it forms a large Z-shaped character ; in the dry 
phase -the discocellular bar runs backward only half way to the 
origin of the first median branch. In the character of the second- 
aries this species is like B. westwoodi on the under surface. Expanse, 
64 millim. 
Hab. Coneo; Loanpna (Mus. Brit.). 
These examples were received from the Godman and 
Salvin collection, a male (wet phase) from the Congo, and 
a pair (dry phase) from Loanda. There is very little 
doubt that this is the species for which Boisduval pro- 
posed his manuscript name of “ Pieris allica,’ but M. 
Oberthiir having published the name as applying to B. 
abyssinica, it has become a synonym and cannot now be 
resuscitated. 
