284 
SOUTH-AFKICAN BUTTERFLIES. 
326. (3.) Pyrgus Mafa, Trimen. 
Pyi-gus Mafa^ Trim., Trans. Ent. Soc. Lond., 1870, p. 386, pi. vi. f. 12. 
Closely allied to P. Vindcx, Cram. 
Exp. al.^ 1 1 J lin. — i in. 
Black spotted with white ; the spots in number and arrangement 
quite as in P, Vindex, but mostly smaller, and very sharply defined; \ 
the median hand of hi7id-wing narrovjer^ interrupted inferiorly and \ 
denticulate externally. Under side. — Hind-wing : the sub-basal and 
central white stripes rather narrow, not oblique, interrupted more or less 
markedly in two places, viz., the former on costal and median nervures, 
and the latter on second subcostal and first median nervules ; of the 
separate spots or portions of the stripes, the largest is the middle one 
of the central stripe, which is denticidate both imoardly and outwardly, 
hut much more strongly oidwardly. 
It is doubtful whether this form should be regarded as a species 
distinct from Vindex, for the characters above indicated, though well- 
marked through a good series of specimens from different localities, 
are less distinctly expressed in three examples that I captured at 
Eerste Eiver, — one of which has the upper side discal spots of the ' 
fore-wing as large as in ordinary Vindex. 
Colonel Bowker found Mafa pretty numerously in Basuioland, but else- 
where it appears to be rather scarce, though with a wide distribution through 
the interior, and especially the North-Eastern districts. The few specimens 
that I have noticed in life were on the wing daring September, with the 
exception of one which I took at Greytown in Natal on the 15th March. 
Localities of Pyrgus Mafa. " 
I. South Africa, 
B. Cape Colony. 
a. Western Districts. — Eerste River, Stellenbosch District. 
h. Eastern Districts. — Burghersdorp (D. R. Kannemeyer). Kraai 
River, Barkly District (J". H. Bowker). 
c. Griqualand West. — Kimberley, Vaal River (/. H. Bowker). 
d. Basutoland.- — Maseru and Koro-Koro (J. H. Bowker). 
C. Orange Eree State. — Parijs, Upper Vaal River {E, G. Alston). 
E. Natal. 
h. L^pper Districts. — Greytown. Estcourt (/. M. Hutchinson). 
K. Transvaal. — Potchefstroom District {T. Ay res). 
327. (4.) Pyrgus Asterodia, Trimen. 
Pyrgus Asterodia, Trim., Trans. Ent. Soc. Lond., 3rd Ser., ii. p. 178 
(1864) ; and Rhop. Afr. Aust,, ii. p. 289, n. 178, pi. 5, f. 6 (1866). 
Exp. al., 10 lin. — i in. 
Allied to P. Vindex, Cram., hut ground-colour paler, more glossy ; and 
spots smaller, not so purely white. Fore-wing : three spots in cell, the 
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