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SOUTH-AFRICAN BUTTERFLIES. 
Genus ATELLA. ; 
Afella, E. Doubl., Gen. Diurn. Lep., i. p. 165 (1848). 
Imago. — Head very broad, wider than thorax, tufted with hair 
superiorly ; eyes smooth, very prominent ; pal2n wide apart, projecting 
considerably in front of head, — the second joint long and swollen, 
thicker anteriorly, grooved centrally and longitudinally beneath, closely 
hairy above but scantily so beneath, — terminal joint very small and ! 
slender, acutely pointed, clothed with scales ; antennce of moderate 
length, with rather a gradually-formed, flattened, not broad, spoon- 
shaped club. 
Thorax moderately robust, rather short, hairy (especially on breast). 
Fore-ivings prominent apically ; costa well arched ; hind-margin rather 
hollowed in middle ; inner margin slightly hollowed beyond middle ; 
costal nervure short, ending about middle ; first subcostal nervule 
given off at or just before extremity of discoid al cell, second at a little 
or considerable distance beyond it ; discoidal cell short, closed by 
attenuated lower disco-cellular nervale joining median nervure about 
origin of its second nervule ; upper disco-cellular nervule extremely 
short, straight, — middle one of moderate length, much curved inwardly. 
Hind-wings very slightly or more distinctly prominent in the lower 
anal-angular portion ; costa slightly arched ; hind-margin moderately 
dentated, — the dentation at end of third median nervule more pro- 
nounced than the others, and sometimes prolonged into a short tail ; 
inner-margins almost touching as far as end of internal nervure — 
forming a very wide, shallow, imperfect groove — but thence divergent ; 
costal nervure extending to apex ; first subcostal nervule arising not 
far from base, and very oblique upper disco- cellular nervule only a 
little distance farther ; lower disco-cellular short, very thin, almost 
atrophied, slightly curved ; discoidal cell short, narrow ; internal ner- 
vure extending to considerably beyond middle. Fore-legs of $ very 
slender ; tibia and femur of about equal length, the former and tarsus 
densely fringed with hair : of $ longer and thicker, not or very slightly 
hairy ; tarsus indistinctly articulated, and slightly spined beneath. 
Middle and hind legs moderately stout, scaly ; femora smooth ; tibise 
and tarsi very spinose beneath, less so above ; tibial spurs long, very 
slender. 
Abdomen short, slender, slightly arched. 
Larva. — Armed with rather long spines set with bristly hairs ; 
head without spines or horns. 
Pupa. — Moderately stout, not much curved abdominally, and rather 
rounded anteriorly ; dorsal region with six or seven pairs of pointed 
tubercles or short thin spines. 
The differences which distinguish this genus from Argynnis — the 
