NYMPHALIN^. 27 



enable them to keep up an unceasing activity during the bright hours of the day. 

 They seem to dehght in displaying their exquisite beauty to the sun, coquetting with 

 him untiringly while his face shines ardently upon them. Their flight, though so 

 powerful, is not observed to sustain these charming insects in one uniform direction, 

 hke the Muplwa's, but serves rather to enable them, when rambling in their frohc, 

 to make wide sweeps within no very extensive area ; the larger species, like gorgeous 

 moving flowers brightening up the green foHage of the trees and, with the birds, 

 giving animation to the otherwise still Hfe of the rich, varied vegetation of Ceylon. 

 Some species of these butterflies, like the Junonias, prefer to display their bright 

 expanded wings upon the sunny ground, whilst others, hke Neptis, fly gaily about the 

 low flowering shrubs. Many kinds, Kke Diadema, &c., when at play, return again 

 and again at certain intervals of time to the same or to nearly contiguous spots, and 

 thus give the collector renewed opportunities of capture." (Note by Dr. Thwaites.) 



Genus ROHANA. 

 Apatura, Sect. II. Felder, Neues Lep. p. 36 (1861). 



Wing^ short ; fore wing triangular ; first subcostal branch emitted near end of 

 the cell, second at a short distance beyond the cell, third and fourth at equal 

 distances ; discocellular short, angled close to subcostal, upper radial from the angle 

 and lower radial from its end ; cell open ; lower median branch emitted from opposite 

 discocellular, the two upper at some distance beyond ; submedian straight : hindwing 

 triangular ; costal vein curved upward, extending to apex, with a short basal curved 

 spur; subcostals and radial contiguous at base but divergent; cell open; lower 

 median branch emitted at a short distance from base of the two upper, submedian 

 and inner vein recurved. Body short, thorax stout, palpi porrect, pointed, flat 

 beneath, squamose, legs short, squamose, antennge slender. 



Type, E,. Parysatis. 



ROHANA CAMIBA (Plate 14, Fig. 1 a, b, c). 



Male. Upperside dark purple-black : forewing with a subapical linear series of 

 three minute white spots. Cilise white streaked. Underside greyish purple-brown, 

 costal area beyond the cell on forewing and exterior border of both wings chestnut- 

 red ; a black-hned chestnut-red mark and two inner small spots within both cells, 

 and a small spot below the cell on forewing ; a slender black zigzag inner-discal Kne, 

 followed by a suffused black fascia and a submarginal row of purple-grey rings 

 crossing both wings, the latter ending at the apex in a more prominent continuous 

 grey streak, and the inner line bordered externally by purple- white spots which are 



E 2 



