ACRJEmJE. 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, Cahira 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 Cyntliius 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. Cahira is a very handsome species, and very different in appearance 

 from any of its South-African congeners. Tlie well-defined, clear, pale-yellow 

 bands on the dark-brown ground of the upjDer 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 ]N"atal, this Acrma 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'XJrban in June 1865, and Colonel Bowker captured several in August 

 1879. 



Localities of Acrma Cahira. 



I. South Africa. 



E. Natal. 



a. Coast Districts. — D'Urban. Verulam. Avoca (/. H. Boivker). ' 



F. " Zululand (A. Delegorgue)." — Boisduval. 

 I. " Inhambane." — Hopffer. 



II. Other African Eegions. 

 A. South Tropical. 



h. Eastern Coast. — Zambesi (Rev. H. Rowley). — Coll. Hope, Oxon. 



Genus PLANEMA. 



Planema (Section ii. of Acrcea, Fab.), Doubl., Gen. Diurn. Lep., i. p. 140 



(1848). 

 Acrcea (part), Trimen, Rhop. Afr. Aust., i. pp. 92, iio-iii (1862). 



Imago. — Read smaller than in Acra;a ; ■pal'pi with the second joint 

 very slightly or not at all swollen, and the terminal joint, though very 

 short, better developed. 



Fore-ivings more or less apically produced, especially in $ ; first sub- 

 costal n nvule emitted before end of discoidal cell in the Esehria and Lycoa 



