COLITN^. 171 



The various varieties described only differ fiom the type form in the tint of 

 colour, some of the females being almost pure white. Antennae, palpi, head and fore 

 part of the thorax orange. 



Expanse, $ ? 2y*o inches. 



Habitat. — Chitral, extending upwards into Turkistan. 



EURYMUS FIELDI. 

 Plate 605, figs. 4, <J , 4a, ? , 4b, ? (Wet-season Brood), 4c, ^ , 4cl, 9 (Dry-season Brood), 4e, $ 



(Extreme Dry-season Brood). 

 Colias Fieldi, Menetries, Cat. Mus. Petr. Lep. i. p. 79, pi. 1, fig. 5 (185-5). Wallace, Trans. Ent. 



Soc. 1867, p. 390. Butler, Proc. Zool. Soc. 1870, p. 126; id. 1874, p. 273. Elwes, Trans. 



Ent. Soc. 1880, p. 136; id. 1884, p. 7. Moore, Proc. Zool. Soc. 1882, p. 254. Doherty, 



Journ. As. Soc. Bengal, 1886, p. 136. Butler, Ann. Mag. Nat. Hist. 1888, p. 196. Manders, 



Trans. Ent. Soc. 1890, p. 534. Swinhoe, Trans. Ent. Soc. 1893, p. 308. Mackinnon and de 



Niceville, Journ. Bo. Nat. Hist. Soc. 1898, p. 588. Leslie and Evans, Journ. Bo. Nat. Hist. 



Soc. 1903, p. 675. Bingham, Fauna of Brit. India, Butt. ii. p. 243 (1907). Verity, Rhop. 



Palearctica, p. 266, pi. 46, figs. 26, 27 (1909). 

 Colias Edusa, var. Mtjrmidone, Moore (nee Esper), Proc. Zool. Soc. 1865, p. 492. Elwes, Trans. 



Ent. Soc. 1884, p. 7. 

 Colias Edtisina, Butler (nee Felder), Proc. Zool. Soc. 1886, p. 370; id. Ann. Mag. Nat. Hist. 1888, 



p. 196. Watson, Journ. Bo. Nat. Hist. Soc. 1897, p. 669. 



AVet-season Brood (Figs. 4, $, 4a, ?, 4b, ?). 

 Imago. — Male. Upperside deep cadmium orange-yellow. Forewing with a small 

 space of the lower base thickly irrorated with greenish-black scales, and a few scales of 

 the same colour on the costa, a large pear-shaped black spot closing the end of the cell, 

 a broad black exterior marginal border with a sinuous inner margin, slightly running in 

 on the lower margin, and curved below the apex where the band is a little broader. 

 Ilindwing covered with a thin coating of greenish-black scales, except at the end of the 

 cell, where there is a large, nearly round, space of the ground colour, and except near the 

 inner margin of the outer black border, where there are some spots of the ground colour, 

 decreasing in size upwards, the abdominal marginal third very thickly covered with 

 some long soft hairs at base, the actual abdominal marginal space whitish, tinged with 

 greenish-blue, the marginal black band of medium size, thin near the anal angle, which 

 it does not reach, sinuous on its inner margin, thickening at the middle, narrowing at 

 the apex and running along the costa to the base, broadening basally and with a large 

 white patch close to the base. Underside. Forewing paler than it is above, of a bright 

 ochreous-orange tinge, the costal and exterior marginal spaces tinged with green, costal 

 line dark orange, two or three small brown spots on it near the apex, three black lower 

 discal spots on the inner edge of the outer band, increasing in size hindwards, and 

 a large deep black, nearly round, spot centred with white at the end of the cell. 



z 2 



