ACRiEIN^. 
175 
former. From Bonasia it may be known by all the bands being yellow 
instead of fulvous, and of different shape ; the subapical bar of the fore-wing 
being less curved, the disco-median patch not united to base by a longitudinal 
ray, nor extending with even width to inner margin, and the median band of 
the hind-wing regularly indented outwardly and much widened towards its 
upper portion. On the under side, too, Gahira has only the basal part of 
fore-wing, and not the disco-median patch, fulvous ; while the marginal border 
is much broader, and presents fulvous inter-nervular rays, which in Bonasia 
are black. The Zambesi variety above noted makes a decided approach, how- 
ever, to Bonasia in the points of having two of the bands fulvous, and of one 
of those (in the fore-wing) emitting a fulvous ray towards the base. 
The Cynthius of Drury is a rather larger insect than Cahira, and its bands 
are narrower, straighter, and more even throughout ; while the hind-wing has 
a row of fulvous spots midway between the median band and the hind-margin. 
On the under side the marginal borders are broad, but present no fulvous 
rays in either wing; and in the hind-wing the basal black spots are more 
numerous. 
A. Cabira is a very handsome species, and very different in appearance 
from any of its South-African congeners. The well-defined, clear, pale-yellow 
bands on the dark-brown ground of the upper side, and the elaborate vandyked 
border of the under side, render it most easily recognised. 
Though constantly to be met with on the coast of Natal, this Ac7^CBa was 
less numerous than most of its congeners in the summer of 1867 ; and I only 
found it in the vicinity of D' Urban and Verulam. I have not seen any 
examples from the upper districts of Natal, or from farther in the interior. 
It frequents woods and their outskirts, seldom appearing in open ground, and 
flies slowly, not far above the herbage, often settling on low flowers. It 
appears in the winter as well as in the summer, for I took a specimen at 
D'Urban in June 1865, and Colonel Eowker captured several in August 
1879. 
Localities of Acrcea Cabira. 
1. South Africa. 
E. Natal. 
a. Coast Districts. — D'Urban. Yerulam. Avoca (/. H. Boivlcer). 
F. " Zululand {A. Delegorgue)." — Boisduval. 
I. "Inhambane." — Hopffer. 
II. Other African Regions. 
A. South Tropical. 
h. Eastern Coast. — Zambesi (Rev. H. Rowley). — Coll. Hope, Oxon. 
Genus PLANEMA. 
Planema (Section ii. of Acrcea, Fab.), Doubl., Gen. Diurn. Dep., i. p. 140 
(1848). 
Acrcea (part), Trimen, Rhop. Afr. Aust., i. pp. 92, iio-iir (1862).' 
Imago. — Head smaller than in Acrcea ; palpi with the second joint 
very slightly or not at all swollen, and the terminal joint, though very 
short, better developed. 
Fore-wings more or less apically produced, especially in ^ ; first sub- 
costal n nvule emitted before end of discoidal cell in the Esehria and Lycoa 
