1876.] MR. A. G. BUTLER ON THE GENUS TERACOLUS. 135 



cepting that the secondaries have a white patch above the subcostal 

 nervure: wings below pale yellowish white, slightly rosy towards the 

 base ; primaries with the discocellular spot small, elliptical, black, 

 with white centre ; apical border pale reddish-orange, bounded 

 within by six ill-defined yellowish spots, limited by an inner series of 

 seven decreasing spots, the upper five rusty-brown, the lower two 

 black ; secondaries with a pale-centred rusty discocellular spot ; 

 seven discal spots in an irregular arched series, all rusty; outer 

 border pale reddish orange, diffused internally ; body below creamy- 

 white. Expanse of wings 1 inch 8 lines. 



$. Altogether paler ; primaries with the costa and base cinereous ; 

 discocellular spot small, as in the male ; apical border dark brown, 

 enclosing six spots internally and seven externally ; secondaries with 

 six large subquadrate marginal dark brown spots : wings below 

 creamy sulphur-yellow, rather darker towards the base and on the 

 outer margins; otherwise as in the male. Expanse of wings 2 inches. 



d, Kalka, foot of Himalayas {Boys, B.M.). $ , Kattvwar (coll. 

 Moore). 



30. TeRACOLUS SOLARIS, n. sp. 



c?. Wings above like dark females of T. fausta, but altogether 

 of a deeper orange-colour, with the costa of primaries ash-coloured, 

 and the discocellular spot much larger ; secondaries with a white 

 patch above subcostal: wings below pale creamy yellow, deeper 

 towards the base, the markings as in the preceding species. Ex- 

 panse of wings 2 inches 2 lines. 



d var. Wings above paler in tint ; ash-coloured costa of prima- 

 ries darker ; markings below rather paler. Expanse of wino-s 1 inch 

 1 1 lines. ° 



d, Scinde? (B.M.) ; S var., N.W. India (coll. F. Moore). 

 Wallace labelled this as his Idmaisfulvia ; but it is quite distinct. 



31. Teracolus fulvia. 



S, Idmaisfulvia, Wallace, Trans. Ent. Soc. ser. 3, vol. iv d 392 

 n. 5, pi. 9. fig. 5 (1867). ^ 



Idmais tripuncta, Butler, Proc. Zool. Soc. p. 221, pi. 17, fig. 9 

 (1868). 



^^ ? ' N- W. India. Type, coll. Moore. 



Ihe female is white instead of orange. 



7. Closely allied to the preceding group ; wings pale sahnon-colour 

 or white above, with broad black-brown outer borders, iiiter- 

 sected by spots of the ground-colour ; wings below coloured 

 much as in Colias. Idmais, Boisd. Type I. calais. 



32. Teracolus vestalis, n. sp. (Plate VII. fig. 10.) 



d § . Size of the preceding group of species : white above, with 

 a broad irregular external black border ; two white spots placed 

 obliquely below the apex of primaries, and a third much larger on 

 second median interspace ; a large black spot at the end of the cell • 



