TERIAS. 247 



cellulars of the fore wing and a minute dot in interspace 7 of the 

 hind wing black ; the disc of the hind wing transversely crossed 

 by two parallel, very obscure, short blackish lunular bands; all 

 the veins of both fore and hind wings with minute black dots at 

 their apices. Antennae, head, thorax and abdomen dusky black ; 

 beneath : the antennae with a line of white dots ; the palpi, thorax 

 and abdomen whitish. $ . Similar, except of course the special 

 sex-marks. Upperside : the dusting of black scales more dense ; 

 the black area on the fore wing and the black terminal band on 

 the hind wing broader ; the former however, narrowed generally 

 abruptly beloiv the middle of interspace 1 and continued thence to 

 the tornal angle as a mere black line, the latter very broad ante- 

 riorly and attenuated rapidly towards the tornus. Underside : as 

 in the J . Antenna?, head, thorax and abdomen coloured similarly 

 to those of the c? . 



Dry-season brood. Ground-colour in both sexes clearer, brighter 

 and more free of the irroration of black scales. Upperside : the 

 terminal black baud on hind wing narrower, of even width in the 

 c? , obsolescent posteriorly in the $ . Underside : similar but paler 

 than in the wet-season specimens. 



Exp. cf $ 36-42 mm. (1-42-1-67"). 



Hal. Himalayas from Simla to Darjiliug; Punjab; Ganjam ; 

 AV^estern India : Kutch ; Bombay ; Poona ; Southern India : 

 Xilgiri and Anaimalai Hills ; Ceylon ; Assam ; Burma. Nowhere 

 plentiful. 



G40. Terias libythea, Fdbr. (Papilio) Eat. Syst. Suppl. 1798, p. 427; 



Watson, Jour. Bomb. N. H. Soc. viii, 1894, p. 515 ; Davidson, 



Hell $ Aitken, Jour. Bomb. N. H. Soc. x, 1897, p. 571 ; Butler, 



A. M. N. H. (7) i, 1898, p. 58 ; Mackinnon $ de Nicemlle, Jour. 



Bomb. N. H. Soc. xi, 1898, p. 588. 

 Terias drona, Horsfield, Cat. Lep. Mus. E.I. C. 1829, p. 137, pi. 1, 



fig. 13 ; Moore, Lep. Ceyl. i, 1881, p. 120, pi. 46, figs. 3, 3 a, <J $ . 

 Terias semia, Felder, Novara Reise, Lep. ii, 1805, p. 212; Distant, 



Rhop. Malay. 1885, p. 307, pi. 25, fig. 14 $>, & pi. 26, fig. 13 rf; 



Manders, Tram. Ent. Soc. 1890, p. 533. 

 Terias rubella, Wallace, Trans. Ent. Soc. (3) iv, 1867, p. 323; 



Elves, Trans. Ent. Soc. 1888, p. 413. 



This form does not seem subject to seasonal dimorphism or 

 polymorphism in so great a degree as some of the others belonging 

 to the genus Terias. 



<5 . Upperside : gamboge-yellow. Fore wing : the apical 

 third black ; the inner margin of the black area more or less 

 regularly concave, extends from the apex of the basal third of the 

 costa and curves round to a point on the dorsum just before the 

 tornal angle ; base of wing irrorated with black scales. Hind 

 wing : a black terminal band that is broader anteriorly ; basal 

 area dusted with black scales. In specimens of the wet-season 

 broods the black-marked areas on both fore and hind wings are 

 broader than in dry-season specimens. Sometimes in the latter 



