PIERINzE. 65 
of discoidal cell ; liind-marginal spots united by broad arched streaks, 
so as to form a series of fcstoon-likc markings ; before them a more or 
less connected row of arched streaks (as in under side of ^) touching 
them. Under side. — Very similar to hut the markings hroader. 
Fore-ioing : paler than on upper side ; base only light-greyish, but in 
the whiter specimens with a pale-yellow tinge as far as extremity of 
cell. Hind-iuing : deeper in tint than in $ ; blackish markings often 
more or less diffused. 
The $ varies but little, except in size ; but the black markings 
generally are more pronounced in some specimens, and in a few of the 
smaller examples the upper |)art of the terminal disco-cellular streak on 
the upper side of the fore- wings is obsolescent or wanting. The on 
the other hand, is highly variable, not only in size, but in ground- 
colour and development of markings. Exam|)les of the medium pale- 
yellowish tint, with all the marginal markings defined with more or less 
clearness, are most prevalent ; but specimens not rarely occur in which 
the yellow is much deeper on both upper and under side, and the 
marginal markings are on the upper side in both wings confluent into 
a broad dark border without (or with only the traces of) the usual 
spots, while the basal clouding is broader and darker. Females in 
which the ground-colour is whitish or nearly white are the scarcest ; in 
one of three, which I took near Grahamstown, the borders and basal 
suffusion are almost as strongly marked as in the yellower examples- 
just mentioned.-^ 
I captured the paired sexes near Grahamstown on the 6th, and at 
Uitenhage on the 23d February 1870, and Colonel Bowker took them 
near D'Urban, Natal, in November 1881. The $ of Colonel Bowker's 
pair is remarkable for presenting on the upper side of the fore-wings 
the coalescence of the outer and inner series of white spots in the dark 
border, usually found only on the under side, — the confluent spots are, 
however, much irrorated with fuscous scales. 
The longer and much more pointed fore-wings and inferiorly elongated hind- 
wings well distinguish the s oi Gidica and Alyssinica from their allies in 
South Africa, and, in a less degree, the ^ s also. The $ Gidica is a very rapid 
flyer, and its swift irregular course over and among the trees and underwood 
of its sylvan haunts makes it by no means an easy capture on the wing. 
It constantly visits flowers, however, especially those of Calodendron capense 
(the so-called " Wild Chestnut") and of Plumbago cajyensis, and is then taken 
without much difficulty. The species is very numerous in the wooded parts of 
South Africa, but does not make its appearance until the Avarm weather is well 
advanced. At Plettenberg Bay, near Grahamstown, and on the Natal coast, I 
found it abundant at the end of January and through February in different 
years, and in the last-named district up to the beginning of April. Mr. W. S. 
^ My determination of Wallengren's Pinaco'pteryx Weshcoodi and P. DouUedayi as 
respectively <$ and 9 of Gidica was confirmed by some rough drawings of his type speci- 
mens shown to me by W. F. Kirby. " P. Westwoodi, Wlgrn.," in the drawings is certainly 
the (J Gidica; "P. DouUedayi, Wlgrn., c? ," is a ? Gidica in which the fore-wings are 
whitish ; and " P. DouUedayi, Wlgrn., ? ," is a yellow ? Gidica. 
VOL. III. E 
