6o SOUTH-AFRICAN BUTTEEFLIES. 
I 
I 
$ Pinacopteryx Syrinx, Wallengr., Wien. Ent. Monatschr., iv. p. 34, 1 
n. 4 (i860). j 
$ Pieris Mesejitina, Hopff., Peters' Reise Mossamb., Ins., p. 352 (1862). 
^ $ Trim., Rhop. Afr. Aust., i. p. 35, n. 21 (1862). 
$ Pieris Lordaca, Walk., Entomologist, 1870, p. 48. 
Larva and Pupa (Indian), Horsf. and Moore, Cat. Lep. E. I. C. Mus., i. 
pi. xii. ff. 9, 9a (1857). 
Uxp. cd., ($) 2 in. 0-3 lin. ; ($) i in. 10 lin. — 2 in. 3-|- lin. 
J White, with Uackish borders. Fore-wing : costa narrowly edged 
witli black, and bordered with greyisk above discoidal cell ; a curved 
black transverse streak, thickest at its lower extremity, at end of cell ; 
a black kind-marginal border, with a very irregular inner edge, nar- 
rowing to a point at posterior angle, and containing in its upper half 
six elongate somewhat triangular white marks ; base with a slight 
pearly gloss. Head-wing : a hind-marginal black border, containing 
incompletely (owing to more or less obsolescent inner edge) four large 
subovate white spots ; base with a pearly gloss. Under side. — Similar 
in marking ; hind-wing faintly tinged luith yelloivish. Fore-iuing : spots 
in hind-marginal border larger, better defined ; a black streak between 
costal and subcostal nervures from base to upper end of disco-cellular 
terminal transverse streak. Hind-iuing : all the neuration clouded 
with blackish ; costa and a longitudinal streak between median and 
submedian nervures tinged from base with chrome-yellow ; a yellow 
edging before middle of inner margin ; a blackish transverse stripe 
from extremity of discoidal cell to longitudinal streak just mentioned, 
and another from end of costal nervure to second subcostal nervule ; hind- 
marginal border completely enclosing five spots of the ground-colour. 
$ Varying from yellowish-white to didl-yellowish ; markings much 
as in J, hut all broader. Fore-wing : curved bar at extremity of cell 
connected wdth base by a black costal stripe ; spots in hind-marginal 
border small and ill-defined, or sometimes wanting. Hind-iving : a 
linear transverse mark at extremity of cell ; beyond middle a blackish 
subcostal marking, sometimes united to hind-marginal border ; four 
somewhat rounded spots in border, sometimes obliterated. Under 
SIDE. — Hind-wing and apical spots of fore-iving ivhitish, more or less 
tinged and clouded tvith chrome-yelloiv. Fore- wing : a basal suffusion 
of rather dull chrome-yellow, very variable in extent, sometimes almost 
filling discoidal cell and tinging costa beyond middle. Hind-wing : 
neuration thickly black-clouded ; spots in hind-marginal border varied 
with yellow. 
The typical Mesentina, figured by Cramer, is the ordinary form of 
continental India, in w^hich the $ has the black markings generally 
more strongly represented, and both sexes (but especially the $) exhibit 
a deeper yellow on the under side of the hind-wings and apex of fore- 
wings. The latter is, however, a decidedly variable character in Indian 
specimens (though I have not seen any quite so pale as the African 
^ s, in which the colouring is almost white), and appears, from the 
