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SOUTH-AFRICAN BUTTERFLIES. 
Localities of Terias regularis. 
1. South Africa. 
B. Cape Colony. 
a. Western Districts. — Forest Hall, near Plettenberg Bay (Miss 
Neivdigate). 
K EasternDistricts.— King William's Town ( W. S. M. Z>' Urha7i). 
E. Natal. 
a. Coast Districts. — D'Urban. Verulam. Mapumulo. 
b. Upper Districts. — Fort Buckingham, Grey town, and Umvoti 
District. Pietermaritzburg. 
II. Other African Regions. 
B. North Tropical. 
a. Western Coast M. FasJi). 
hi. Eastern Interior. — " Atbara" River [Soudan]. — A. G. Butler. 
Genus MYLOTHRIS. 
Mylotliris (Hiibn., 1816, part.), Butler, Cist. Ent., i. p. 42 (1870). 
Pieris^ Godart [part.], Enc. Meth., ix. p. 10 (1819); et Auct. 
Piei'is, Trim, [part], Rhop. Afr. Aust., i. p. 26 (1862). 
Imago. — Head small, clothed above and in front with rather long 
and sparse bristly hair ; palpi slender, elongate, scaly above, — basal 
and middle joints with long and bristly hairs beneath, — terminal joint 
rather longer than middle one, porrect and ascendant, slightly thickened 
just before tip ; anUnnce of moderate length and thickness, with a 
short, abruptly-formed, flattened club, rounded at the tip. 
Thorax short and rather slender, clothed densely with hair, which 
above is long and silky. Wings, thin (in some species very delicate) 
and large. Fore-iuings rather elongate, with the cost a very slightly 
arched ; apex not acute but pronounced ; hind-margin almost straight 
or slightly convex ; costal nervure ending at about three-fifths of wing 
from base ; subcostal nervure three-branched, — first and second nervules 
given off not far apart, near extremity of discoidal cell — the first very 
short (sometimes in M. Agathina joining costal nervure, and in one J 
specimen almost obsolete), — second long, ending not far before apex; 
upper radial united to subcostal nervure at origin of third nervule, 
lower radial from junction of two disco-cellular nervules ; of the latter 
the lower is twice as long as the upper, but much less oblique and 
slightly angulated or merely curved ; discoidal cell large, nearly three- 
fifths length of wing, broad and truncate at extremity. Hind-wings 
bluntly obovate ; hind-margin convex, very slightly sinuate ; inner 
margins convex, meeting below abdomen ; costal nervure very short, 
terminating considerably before middle ; first subcostal nervule emitted 
considerably before extremity of cell, much arched, ending at some dis- 
tance before apex, — second nearly straight, ending at apex ; disco- 
cellular nervules both oblique, the lower nearly or about twice as long 
