44 
SOUTH-AERICAX BUTTERFLIES. 
bi. Eastern Interior. — Mashunaland (F. C. Selous). " Nyassa." — 
Kirby, Cat. Hewits. Coll. 
hb. Eastern Islands. — Madagascar {De Rohillard). Sainte-Marie 
et Madagascar." — Boisduval, 
B. North Tropical. 
a. Western Coast. — " Fernando Po ; Mungo and Victoria, Cameroons 
(Buchlioh):'—VV6iz. Old Calabar.— Coll. Brit. Mus, "Lower 
Niger (TF. A. Fo7'hes)." — Godman and Salvin. Abomey. — Coll. 
Brit. Mus. Cape Coast Castle and Elmina {Bouj^Tie). Sierra 
Leone. — Coll Brit. Mus. " Senegal." — Boisduval. 
251. (2.) Pieris Thysa, Hopffer. 
$ $ Pieris Thysa, Hopff., " Monatsb. K. Akad. Wissensch. Berl., 1855, 
p. 639, n. i;" and Peters' Reise Mossamb., Ins., p. 349, t. xxi. If. 
7, 8 [c?], 9, 10 [?] (1862). 
$ Pieris Agathina, Yar. A., Trim., Rhop. Afr. Aust., i. p. 29 (1862). 
Var. $ , Belenois Sabrata, Butl., Trans. Ent. Soc. Lond., 1870, p. 526. 
FxjJ. cd., 2 in. 5-|— 7 lin. ; 2 in. 3-1 i lin. 
$ White, ivith large hind-marginal nervular black spots, united in 
fore-iviiig to form an inwardly strongly dentated border, but all separate 
in hind-ioing ; a submccrginal roio of small inter-nervidar black spots, 
onore developed in hind-iving. Fore-iuing : costal margin with a narrow 
black edging, scaled with white at and near base, and rather abruptly 
widened a little before apex ; hind-marginal macular border continuous 
as far as second median nervule, its component spots more or less tri- 
gonate and inwardly acute ; a separate spot at extremity of first median 
nervule, and a very small narrow one at extremity of submedian ner- 
vure ; spots of submarginal row four, rounded, — three between costa 
and lower radial nervule, very close to (or even touching) apical black, 
— the fourth (often indistinct) apart from the rest, between third and 
second median nervules ; base with a sub-metallic gloss, and with the 
under side red faintly indicated. Hind-wing : six hind-marginal spots 
of moderate size, rather widely separated, rounded, from second sub- 
costal nervule to submedian nervure, — the third, fourth, and fifth larger 
than the first and second, and the sixth much the smallest of all and 
sublinear ; very rarely the trace of a seventh spot at extremity of first 
subcostal nervule ; seven small spots in submarginal row, between costal 
and submedian nervures, — of which the seventh is always, and the 
fourth and sixth usually, very indistinct ; a faint ochrey-yellow edging 
on inner margin for a little distance from anal angle. Under side. — 
Hind-wing and small apical patch of fore-iving creamy ochreous-yellow ; 
hind- marginal spots much smcdler and narroiver, but submarginal spots 
lai^ger, darker, and better defined than on upper side. Fore-iving : a 
narrow basal suffusion of orange-red, outwardly radiating slightly on 
the white ground, but not reaching quite to middle of discoidal cell ; of 
the seven hind-marginal spots, the upper four (bordering apical yellow) 
are very small, or even obsolete, but the remaining three moderately 
