RHOPALOCERA MALAY AN A. 173 



Genus ATELLA. 



Atella, Doubleday, Gon. Diura. Lep. p. 165 (1848) ; Moore, Lep. Ceyl. i. p. 61 (1881). 

 Phalanl,t, Horsf. Cat. Lep. E.I.C. t. 7, f. 5 (1820). 



Anterior wings subtriangular ; costal margin arclied and convex, tlie apex rounded ; outer margin 

 oblique, moderately concave, and slightly waved ; inner margin concavely sinuated. Costal nervurc 

 terminating at about centre of margin ; first subcostal nervure emitted just before the end of cell, second 

 at a little distance beyond cell, third emitted at about twice the distance from second as that nervule 

 is from the first, fourth and fifth bifurcating about midway between base of second and apex of wing ; 

 upper disco-cellular nervule short and oblii]uely directed inwardly, middle disco-cellular concavely bent, 

 lower disco-cellular suberect and more or less concave ; discoidal nervules emitted beyond basal third of 

 wing ; second median nervule emitted at base of lower disco-cellular nervule. Posterior wings subovate ; 

 costal margin oblique and slightly convex ; outer margin rounded and waved, in some species prominently 

 caudate at apex of first median nervule ; abdominal margin straight at area of abdomen and then obli(iuely 

 divergent to anal angle. Costal nervure extending to apex ; precostal nervure curved outwardly ; 

 disco-cellular nervules almost equal in length, the upper distinctly concave, the lower slender and also 

 bent inwardly, with the second median nervule emitted at about its base. Body moderate in size ; palpi 

 reaching above the upper surface of the eyes, finely pilose, the apex slender and conically pointed; 

 antennse moderate, with a compressed and spatulate apex or club. 



This is a genus of moderate extent, which is found in Africa, and extends generallj' 

 throughout the Oriental region and the Malayan Archipelago. 



The immature forms — both larval and pupal — of one species 

 found in this fauna have been figured by Horsfield,* as observed 

 in Java, and by the Bros, de Alwis, f in Ceylon. These figures ^^'^- ^•^-^^?;iX[;^/;"ep'S^^^^ 

 probably represent two different stages in the existence of the 



caterpillar, as the Ceylon figure is small and "purple-brown," whilst that of the Javan larva 

 is considerably larger and pale greenish above. J 



a 



. Outer mnniin of posterior wings rounded, not caudate. 



1. Atella phalanta. (Tab. IX., fig. 4 <? .) 



Papilio phalanta, Drury, 111. Ex. Ent. i. t. 21, f. 1, 2 (1773). 



Papitio coiwnhina, Cram. Pap. Ex. iii. t. 238, A. B. ; iv. t. 837, D. E. (1782). 



Argijmiis phaliiiita, Godt. Enc. Meth. ix. p. 259, n. 10 (1819). 



Phalanta cohuMua, Horsf. Cat. Lep. Mus. E.I.C. t. 7, f. 5 (1829). 



Atella phalanta, Horsf. & Moore, Cat. Lep. Mus. E.I.C. i. p. 152, t. 5, f. 7 (18571 ; Snellen, Tijd. Eut. xix. 



p. 149, n. 27 (1876) ; ibid. xx. p. G6 (1877); Butl. Trans. Liuu. Soc. ser. 2, Zool. vol. i. p. 544, u. 1 



(1877); Moore, Lep. Ceyl. i. p. 62, t. 31, f. 1, 1« (1881). 



Male and Female. Wings above bright ochraceous, with the following blackish markings :— anterior 

 wings with the apical half of the costal margin, four narrow waved fascife (arranged in pairs) crossing 

 cell, a waved and broken spot beyond cell extending from costa to the lower discoidal nervule, an oblique 

 series of four spots divided by the median nervules ; a straight discal series of six spots placed between the 

 nervules, followed by a similar series of four spots, the upper of which is placed between the discoidal 



* Cat. Lep. E.I.C. t. 7, f. 5, 5a. \ Moore's Lep. Ceylon, i. t. 31, f. la. 



\ The larva; oi Pyrameis goucrilla, a New Zealand species, are described by Mr. G. V. Hudson (Entomologist, vol. svi. 

 pp. '.il7-18) as exhibiting after the third and last moult "no less than four distmct varieties. 



December, 1883. 



