166 LEPIDOPTEBA INBICA. 



DELIAS HORSFIELDII (Plate 529, %. 1, la^^ ? , Ib^J, le ? , 2 J, 2a, ? .) 



Pieris Horsfieldii, Gray, Zool. Misc. p. 32 (1831). Boisduval, Spec. Gen. Lep. i. p. 448 (1836). 



KoUar. Hugel's Reise Kaschmur, iv. 2, p. 408 (1844). 

 Pieris Bellculonna, Gray, Lep. Ins. of Nepal, p. 7, pi. 8, tig. 2 (J (1846) Moore, Catal. Lep. Mu.^. 



E. I. Company, i. p. 78 (1857) ; id. Proc. Zool. Soc. 1865, p. 758. 

 Tlnjca Belladonna, Wallace, Trans. Ent. Soc. Lend. 1867, p. 348. 

 Delias Belladonna, :Kh\es,'Proc. Zool. Soc. 1882, p. 401. Doberty, Journ. As. Soc. Bengal, 1886, 



p. 348. de Kiceville, Trans. Ent. Soc. 1889, p. 343; id. Sikkim Gazetteer, 1894, p. 165. 



Mackinnon and de Niceville, Journ. Bombay N. Hist. Soc. 1898, p. 585, pi. V. fig. 19, pupa. 

 Delias Belladonna, var. Horsfieldii, Elwes, Trans. Ent. Soc. 1888, p. 408, pi. 10, fig. 3, ? . Mander.^ 



Trans. Ent. Soc. 1890, p. 533. 

 Delias Searseyiet BoylesB, Butler, Ann. Nat. Hist. 1885, p. 58, (J ; id. I.e. 1897, p. 161. 

 Delias Belladonna, vars. Surya et Amarantha, Mitis, Iris, vi. pp. 132, 133, pi. 2, fig. 3 ^ (1893). 



Imago. — Male. Upperside black. Foreiving with more or less indistinctly 

 defined greyish-white scaled longitudinal streaks within the cell, these streaks in 

 some specimens ending before its apex in a more or less apparent or well-defined 

 whiter oblique bar ; beyond is a discal transverse series of more or less defined 

 whitish-grey scaled spots, the lowest being generally elongated and divided by a 

 black line, followed by a subraarginal series of similar-scaled lanceolate spots. 

 Hindioing with a more or less apparent whitish-grey scaled small divided spot, or a 

 distinct short narrow streak before the apex of the cell, a discal series of white 

 irregularly-quadrate shaped spots, and then a submarginal row of broad liinularly- 

 lanceolate spots ; base of abdominal margin broadly greyish-wliite, the anal area 

 being broadly bright yellow ; the costal interspace also bright yellow. Underside. 

 Foretvifig duller black, the white markings more prominent, the apical spots being 

 yellow. Hindimng vinaceous-black, the broad cell-streak, basal costal spots, and 

 submarginal spots bright yellow, the discal spots white, the three median being 

 partly yellow and the anal border broadly yellow. 



Female. Upperside duller black. Forewing with markings similar to the 

 male, except that they are less distinct, and the cell apical-bar only apparent. 

 Hindwing also similar to the male, with an elongated cell-streak and full-sized 

 discal spots, basal costal interspace paler, and the anal area much less suffused 

 with pale yellow, or the cell-streak is short and apically restricted or more or less 

 obsolete, the discal and submarginal spots smaller, and the anal area almost or quite 

 white. Underside similar to the male. Occasionally a male occurs (see fig. 2), in 

 which the basal costal interspace and the anal area of the upperside, and all the 

 underside markings are red, and a female (fig. 2a) with dai-k ochreous-yellow basal 

 costal interspace and whitish anal area of the hindwing on the upperside, and 

 similar dark ochreous-yellow markings on the underside. 



