NYMPPIALIN^. 
189 
well-known group so largely developed in the Palsearctic and Nearctic 
Regions — are very sliglit. They consist in (i) the palpi having the 
second joint less swollen and with much denser, longer hair beneath, 
and the terminal joint much smaller ; (2) the antennae possessing a 
broader, more abruptly-formed club ; (3) the fore-wings having the 
costal nervure shorter, — the first subcostal nervule arising at or just 
before (instead of considerably before) the end of the discoidal cell, — 
and the second at some distance beyond (instead of just before or at) 
the end of the cell, while the lower disco-cellular nervule joins the 
third median nervule at some distance from (instead of at) its origin ; 
and (4) the hind- wings present a more or less decided projection 
(wanting in Argynnis) at the extremity of the third median nervule. 
Atella is essentially a Tropical Old-World group, its ten or twelve 
known species ranging from the West Coast of Africa (A. Columhina, 
Cram.) to Tahiti (A. Gaherti^ Gu(^r.) The most widely distributed 
species is A. Fhalanta (Drury), which inhabits a large part of Africa, 
all the Oriental Region, and even enters the Australian Region as far 
as Timor. The Oriental Region is the home of the genus, four species 
inhabiting it, including the section, of which A. Egista (Cram.) is the 
type, in which the hind-wings not only have a distinct "tail" on the 
hind-margin, but are prolonged in the anal-angular area. 
Two species inhabit South Africa, A. Phcdaiitlia and A. Columhina, 
and are the only members of the genus known to extend beyond the 
Tropics. They are very closely allied ; but while the former is spread 
pretty generally over the country except to the westward, the latter has 
only been found hitherto on the Natal coast. Phcdantha is a very 
active insect, of considerable powers of flight, and though frequent in 
wooded places, is very often to be met with in gardens and open ground. 
57. (1.) Atella Phalantha, (Drury). 
Papilio Phalantha, Dru., 111. Nat. Hist., i. pi. 21, ff. i, 2 (1770). '' 
Papilio Columhina, 9, Cram., Pap. Exot., iv. t. 337, If. d, e (1782). 
Papilio PhaUmta, Fab., Ent. Syst., iii. i, p. 149, n. 455 (1793). 
Argynnis Phalanta, Godt., Enc. Meth., ix. p. 259, n. 10 (18 19), 
„ „ Boisd., Eaune Ent. de Mad., p. 41 (1833); and App. 
Yoy. dc Deleg., p. 592 (1847). 
Atella Phalanta, Trimen [part], Rhop. Afr. Aust., i. p. 115 (1862); and 
ii. p. 334 (1866); also in Trans. Ent. See. Lend., 
1870. P' 352. 
„ „ Moore, Lep. Ceylon, p 62, pi. 31, f. i (188 1). 
Larva and Pupa. 
{Javanese) Horsf. and Moore, Cat. Lep. E. L C. Mus.,i. pi. 5,ff. 7,7a (1857). 
{Cingalese) Moore, Lep. Ceylon, p. 62, pi. 31, ff. la, ib (1881). 
Exp. al., 2 in, ij— 6| in. 
Warm yellow-ochreous, spotted loith hlack ; Mnd-viargiiis with three 
lunulcde and festooned hlack streaks. Fore-wing : two thin, waved, trans- 
