430 LYC/ENID^E. 



On the upperside the medial white band is much narrowed ; on the 

 underside the black markings larger, broader, some of them 

 generally coalescent. 



Var. interrupt, de Niceville, on the contrary is the dry-weather 

 form from localities with a lighter rainfall. In this the white band 

 on the upperside is greatly widened, so that in describing it de Nice- 

 ville gave the ground-colour as " white." On the underside the 

 black markings are reduced in size. The variation between typical 

 hamatus and typical intermptus is very great, but throughout the 

 position and character of the markings do not alter. 



Larva. " Feeds on the tender leaves of the ' chorna ' (ZizypJius 

 ntgosa) .... pale green, of the usual woodlouse form, with the 

 head concealed under the second segment. The whole body is 

 more or less pubescent and there is a fringe of longer hairs on 

 each side." (Davidson $ AitJcen.) 



Pupa. " Short and stout, constricted between the thorax and 

 abdomen, clothed with short hair, closely attached by tail and 

 band to any convenient surface; colour ochreous mottled with 

 brown." (Davidson fy Aitken.) 



770. Castalius elna, Hetcitson (Lycsena), Exot. Butt, v, 1876, Lyceena, 

 pi. 1, fig. 8 $ ; Distant, Rhop. Malay. 1884, p. 217, pi. 20, 

 fig. 4 ; de N. Butt. 2nd. iii, 1890, p. 201. 



(S $ . Upperside : black ; a medial broad oblique white band 

 across both fore and hind wings broadening on the latter, on the 

 fore wing it extends further towards the costa in the than in 

 the c? and in most specimens, both c? and $ , it is slightly 

 produced outwards above vein 3. Underside : white with the 

 following black markings : a very broad band, broader than in any 

 of the other forms, from base of hind wing produced obliquely 

 across the fore wing as far as the discocellular veinlets, thence 

 bent at right angles and extended to the costal margin ; beyond 

 this the discal markings on both fore and hind wings much as in 

 C. roxus, but the terminal markings narrow and more or less 

 obsolescent, the apex of the fore wing however, is more broadly 

 black, while the subterminal line of linear white spots on the 

 same wing and the transverse subterminal series of black lunules 

 on the hind wing are more or less obsolescent. Antennae, head, 

 thorax and abdomen black ; beneath : the shafts of the antenna 

 speckled with white, the palpi, thorax and abdomen with a longi- 

 tudinal medial white line, the sides of the abdomen barred with 

 white. 



Exp. d $ 34-37 mm. (1-33-1-45"). 



Hob. Sikhim ; Bhutan ; Crissa ; Assam ; Burma ; Upper 

 Tenasserim ; South Audamans ; extending to the Malayan Sub- 

 region. 



The above description is drawn up from specimens that are 

 probably of wet-season broods from Sikhim, Assam and the 



