Annals of the Transvaal Museum. 
297 
125. Spindasis natalensis Doubl. and Hew. — Tlie Transvaal 
specimens all exhibit the full development of the ochre-yellow 
marking's of forewing, while in the Natal examples every gradation, 
from uniform fuscous to the full development, occurs. The Cape 
Colony specimens do not exhibit the full development. The fuscous 
of forewing inclining to blackish, the blue much brighter than in the 
Transvaal specimens. 
127. Spindasis ella (Hewit.) — In the Transvaal specimens there 
seems to occur two well-marked seasonal phases. The dry phase, 
with the ochre-yellow bands on upperside of forewing, jstronger 
developed than in the wet phase; the ground colour of the underside 
of both wings, which is in the wet phase yellowish, is in the dry phase 
of a sandy brown colour, with the markings less conspicuous. The 
Museum specimens from Natal exhibit the same seasonal differences. 
129. Axiocerses darpax (Fabr.) — The two males from Waterval 
Onder exhibit a variety in which the upperside is dull orange-red, 
with dull brown-black borders, giving them rather a smoky appear- 
ance. The underside is also of a duller colour, and the golden spots 
not as brilliant as in typical A. harpax from the Transvaal. 
The four males from Bandolierkop and Woodbush respectively 
represent the dry phase of this species. They are much smaller than 
the average dry phase specimens, with the borders on upperside not 
as wide, while the spots are more distinct ; the underside pale sandy 
brown, and with the golden spots in hindwing very much reduced. 
138. Zeritis thyra (Linn.) — The four males from Sliilouvane, 
Zoutpansberg District, differ from typical thyra from Cape Colony in 
the following points: — The orange-red of upperside is lighter, the 
border of forewing not as broad, while on the underside the markings 
in hindwing are of a more silvery white colour, the median streak in 
one specimen very distinct, more regularly dentated, not touching 
streak which closes cell ; in others, all the markings are very much 
reduced. Cilia white interruptions very minute. 
139. ZjGritis dentatis Sw. — “ This is one of the numerous forms 
of Thyra; a closely related form from Dordrecht, Cape Colony, has 
the same bright and extended field above, but the underneath marks 
are of the olive-brown form of field. There is again another form 
resembling this above, but going off in the direction of simplex below, 
also found at Johannesburg. If thyra is to be split up, then, in 
addition to the above distinct departures from the type, the melanic 
form from Xnysna, Cape Colony, should be distinguished, and Z. zilka 
of Gross-Smith must stand as an independent species. Mr. Trimen, 
however, prefers to place it as a variation only of Thyra.” — H. L. L. 
Feltham. 
With reference to my note on Z. thyra (Linn.), it is not at all 
impossible that Mr. Feltham is correct in considering this species a 
variety of Z. thyra. For the time being, however, I prefer to keep 
Z. dentatis (Sw.) as a distinct species until such time when more 
material is available, I am able by comparison of specimens from 
different localities, whether to treat it as a variety of Z. thyra (L.) 
or to consider it a distinct species. 
142. Zeritis damarensis (Trim.) — These five specimens from 
Wonderboompoort agree in all respects with Trimen’s description 
and figure. The female from Crocodilepoort resemble the males in 
upperside colour and markings. 
