NYMPHALIN.^. 189 



well-known group so largely developed in the Paleearctic and Nearctic 

 Regions — are very slight. 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 antennee 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. Gabcrti, Guer.) The most widely distributed 

 species is A. Phalanta (Drury), which inhabits a large pai*t 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. Phalantha and A. Coluiiibina, 

 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. Phalantha 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, fi". i, 2 (1770). '' 

 Papilio Columbi7ia, $ , Cram., Pap. Exot., iv. t. 337, fF. d, e (1782). 

 PapiUo Phalanta, Fab., Ent. Syst., iii. i, p. 149, n. 455 (1793). 

 Argynnis Phalanta, Godt., Enc. Meth., ix. p. 259, n. 10 (18 19). 



„ „ Boisd., Faune Ent. de Mad., p. 41 (1833); and App. 



Voy. de Deleg., p. 592 (1847). 

 Atella Phalanta, Trimen [part], Ehop. Afr. Aust., i. p. 115 (1862); and 

 ii. p. 334 (1866); also in Trans. Ent. Soc. Lond., 

 1870, p. 352. 

 „ „ Moore, Lep. Ceylon, p. 62, pi. 31, f. i (1881). 



Larva and Pupa. 



{Javanese) Horsf. and Moore, Cat. Lep. E. L C. Mus.,i. pl.5,flE". 7,7a (1857). 

 (Cingalese) Moore, Lep. Ceylon, p. 62, pi. 31, if. la, ib (1881). 



Exp. al., 2 in. 1^—6^ in. 



Warm yellow-ochreous, spotted with black ; hind-margins with three 

 lunulate and festooned black streaks. Fore-iving : two thin, waved, trans- 



