296 
SOUTH-AFRICAN BUTTERFLIES. 
h. Upper Districts. — Udland's Mission Station, Great Noodsbeif^ 
Tunjumbili, Hermansburg, and Greytown. Maritzburg (/. H, 
Boioker). 
F. Zululand. — Etshowe {A. M. Goodrich and T. Vachell). 
K. Transvaal. — Lydenburg District {T. Ayres). 
336. (13.) Pyrgus Chaca, Trimen. 
$ $ Pyrgus Chaca, Trim., Trans. Ent. Soc. Lend., 1873, P- pi. i. ff. n 
[n io[?]. 
Exp, al, ($), I in. 31 lin. ; ($) i in. 51 lin. 
^ Fuscous, ivith white and ochreous sj^ots. Fore-iving : irrorated 
thinly in parts with some yellowish scales ; a broad, sub-reniform, 
white spot at extremity of discoidal cell ; a very irregular row of eight 
white spots, of which the tirst three are contiguous, and form a short, 
rather wide, costal and subapical stripe, the fourth and fifth are nearest 
hind-margin and minute, the seventh largest and just under disco-cellular 
spot, and the eighth indistinct and just above submedian nervure ; a 
hind-marginal row of seven indistinct small ochreous spots, of which 
the lowest is suffused and almost obsolete. Hind-wing : some hoary 
hairs along line of median and submedian nervures ; an indistinct, 
good-sized, ochreous spot at extremity of discoidal cell; vague traces 
of three or four small ochreous spots near upper half of hind-margin. 
Cilia white, varied with black at ends of nervures. Under side. — 
Hind-ioing and costal and apical region of fore-wing mingled creamy 
and fulvous-ochreous, the fulvous predominating in hind-wing. Fore- 
wing : white spots as above, but rather larger, and relieved by black 
edgings from the ochreous colouring round them ; a small black spot 
on costa close to base ; a row of seven small black spots on hind-margin 
from apex to anal angle, the lowest two suffused and enlarged, so as 
to join inner-marginal blackish ground-colour. Hind-iving : between 
costal and submedian nervures, two transverse white bands (one before, 
the other beyond middle) edged on both sides with macular black streaks ; 
a hind-marginal row of six small black spots ; space between submedian 
nervure and inner-marginal edge blackish, irrorated anteriorly with 
creamy-ochreous ; costa at base with a black curved mark, about and 
beyond middle bordered with grey. 
$ Not so dark as J ; spotting similar, but all the yelloiv-ochreovs 
spots larger and more distinct ; cilia creamy instead of white, more 
broadly varied with black. Under side. — As in but the fulvous 
brighter, especially in hind- wing. 
Apart from the very considerable difference in size (P. Mohozutza 
not exceeding about 13 lines), both sexes of P. Chaca may, as regards 
the markings of the upper side, be recognised by the possession of two 
small additional white spots (the fourth and fifth) in the transverse 
row beyond the middle of the fore-wings, and the duller and proper- 
