286 
SOUTH-AFEICAN BUTTERFLIES. 
328. (5.) Pyrgus Agylla, sp. nov. 
Uxp. al., 10 — 1 1\ lin. 
Closely allied to P. Asterodia, Trim., but smaller, with the markings 
of a purer white, and the discal ones larger ; hind-wing with basi-cel- 
lular spot distinct and well developed, and submarginal spots larger. 
Under side. — Hind-iving and apex of fore-wing darker in ground- 
colour, less strongly tinged with ochreous-yellow ; nervular interrup- 
tions of cilia conspicuously hlack, without admixture of ochreous yellow. 
Hind-wing : suh-hasal and median white hands much more irregular and 
denticulate on hoth edges, and more sharply defined hy darker fuscous 
edging in parts ; — the opposite projections of these bands all but touch 
each other in two places, viz., at origin of subcostal and of median 
nervules respectively ; submarginal white spots enlarged, and near anal 
angle sometimes partly confluent. 
Though so very near Asterodia in most respects, the under side, 
with its strongly black-marked cilia, and very sharply-defined, irregu- 
larly-shaped white bands on a ground darker than usual, gives this 
form a peculiar aspect, rendering it easily recognisable. 
This little Pyrgus seems confined to the dry upland interior districts of the 
Cape Colony. It was first brought to my notice in 187 1 by Colonel Bowker, 
who took a few examples (three at Hope Town on the Orange River and one 
between Somerset East and Murraysburg) in April of that year ; and a few 
months later Mrs. Barber and he sent three examples from Griqualand West. 
In September 1872 I took a single specimen at Kimberley. 
In two of Mrs. Barber's specimens the middle spots of the fore-wing are 
so enlarged as to give the effect of a straight white fascia from costa to sub- 
median nervure. 
Localities of Pyrgus Agylla. 
I. South Africa. 
B. Cape Colony. 
h. Eastern Districts. — Between Somerset East and Murraysburg 
(J. H. Boivker). Murraysburg {Mrs. Muskett). Hope Town 
{J. H. Bowker). 
c. Griqualand West. — Kimberley. Between Riet and Modder 
Rivers {Mrs. Barher). Vaal River {J. H. Bowker). 
329. (6.) Pyrgus TransvaalisB, sp. nov. 
Exp. al., 1 1 lin. 
Allied to P. Vindex, Cram., and Promus, Plotz. 
J Brownish-black, with very distinct, mostly rounded, white spots. 
Fore-wing : spots in disposition and relative size most like those of 
Promus, but hasi-celhdar spots very narrow and longitudinally elongate, 
terminal cellular spot more quadrate, and costal spot of discal row 
narrower and more distinctly tripartite ; spots of strongly-sinuated 
