DERCAS. 227 



underside. Underside : a paler duller yellow. Fore wing : markings 

 much as on the upperside but the edging to the discocellulars, the 

 oblique band across the disc, the square patch at apex and border to 

 the termen are blood- red, but on the term en this colour has a washed- 

 out appearance ; in addition there are three red spots on the costa 

 and a more or less triangular streak of silvery scales that crosses 

 the apical patch obliquely. Hind wing : the veins at base of cell, 

 a looped line around the discocellulars, a faint transverse bar near 

 the apex of interspace 7, and the oblique band that crosses the 

 disc reddish, this last extends from vein 1 to vein 7 and is sharply 

 angulated or bent ut vein 2. Antennae brown, head and palpi 

 above pink, thorax and abdomen above and beneath pale yellow. 

 2 . Similar, with more or less similar markings on both upper and 

 under sides, but the ground-colour is a pale sulphur-yellow, and on 

 the upperside of the fore wing the markings on the discocellulars 

 and the oblique band that crosses the disc are only indicated by 

 transparency from the underside, while the dark sienna-brown on 

 the termen stops short at vein 3, with a spot of the same colour 

 in the interspace below. 



Exp. d 1 $ 70-82 mm. (2-76-3-22"). 



Hab. Sikhim up to 4000 feet ; Manipur ; the hills of Assam, 

 Burma and Tenasserim ; extending to Siam and China. 



627. Dercas lycorias, Doubleday (Rhodocera), Grays Zool. Misc. 



1842, p. 77, rf (nee $). 

 Gonepteryx wallichii, Doubleday, Proc. Ent. Soc. (1) v, 1849. 



p. xlvii; Sutler (Rhodocera), P. Z. S. 1866, p. 452; Elves 



(Dercas), P. Z. S. 1882, p. 402 ; id. (Dercas), Trans. Ent. Soc. 



1888, p. 415. 

 Gonepteryx urania, Sutler, P. Z. S. 1865, p. 458, pi. 26, fig. 5 ? ; 



Swinhoe (Dercas), Trans. Ent. Soc. 1893, p. 308. 



Dimorph decipiens. 



Dercas decipiens, de Nicevilk, A. M. N. H. (7) ii, 1898, p. 483. 

 Dercas brindaba, Swinhoe, A. M. N. H. (7) iii, 1899, p. 107. 



c? . Upperside, fore wing : sulphur-yellow, darker and a richer 

 yellow on the outer half especially towards the apex ; a small 

 square patch on apex trisinuate internally, the middle sinus deep, 

 the others much slighter, dark sienna-brown ; a similarly coloured 

 large round spot in interspace 3 and much smaller spots or dots 

 at apices of veins 1 to 3 and 10 to 12. Hind wing: pale yellow, 

 paler along the dorsal and costal margins ; veins 1 to 7 with 

 minute dark sienna-brown dots at their apices. Underside : paler 

 duller yellow, sprinkled with ferruginous dots ; the discocellulars 

 on both fore and hind wings marked with a geminate ferruginous 

 spot bipupilled with silver ; a short, oblique, silvery streak on costa 

 just before the apex on fore wing, from which a ferruginous narrow 

 baud inclined obliquely inwards crosses the disc, passing through 



Q2 



