EVEEES. NACADUBA. 381 



round, shifted a little inwards out of line, the one nearest the costa 

 very large and conspicuous ; terminal markings and cilia as on 

 the fore wing. Antenna) black, the shafts speckled with white ; 

 head, thorax and abdomen fuscous black ; beneath : palpi, head, 

 thorax and abdomen white. 



Exp. o" 9 21-25 mm. (0-84-1-00"). 



Hob. Eecorded so far only from Assam : Khasi Hills ; Cherra- 

 pungyi. 



The late Mr. de Niceville noted the similarity of this form to 

 E.fischeri, Eversmann, from Central Asia and China, but the few 

 specimens I have seen seem to me quite distinct from any of the 

 numerous specimens of E. fischeri in the collection of the British 

 Museum. 



Genus NACADUBA. 



Nacaduba, Moore, Lep. Ceyl. i, 1881, p. 88 ; de N. Butt. Ind. iii, 

 1890, p. 141. 



Type, N. atrata, Horsfield (N. prominens, Moore), from Ceylon. 



Range. Africa, and the Indo-Malayan Eegion to Australia. 

 cJ . Fore wing : costa widely arched ; apex blunt ; termen 

 convex, more so in the $ than in the <$ ; tornus obtuse ; clorsum 

 straight ; cell about half length of wing ; vein 3 from a little 

 before lower apex of cell, veins 6 and 7 closely approximate, the 

 latter from a little before upper apex of cell ; upper discocellular 

 forms part of subcostal, middle and lower discocellulars nearly 

 obsolescent ; vein 8 absent, vein 9 from middle of 7, vein 10 from 

 apical third of subcostal ; vein 11 closely approximate at base to 

 vein 10, anastomoses with vein 12 for a short distance, then runs 

 free to costa ; vein 12 terminates on costa nearly opposite apex of 

 cell. Hind wing : subtriangular ; costa widely arched ; apex 

 blunt, not well marked ; termen slightly convex ; tornus fairly well 

 marked, angular ; dorsum convex ; cell short, discocellulars nearly 

 obsolescent ; veins 3 and 4 from lower apex of cell or from a little 

 beyond ; vein 8 well arched at base, terminates at costa before 

 apex of wing. Antennae about half length of fore wing, club 

 gradual ; palpi short, porrect, heavily fringed anteriorly, third joint 

 short, bare ; eyes hairy ; body comparatively slender. 



Key to the forms of Nacaduba *. 



A. Underside fore wing : basal area unmarked. 

 a. Underside : white transverse strigae across 

 both wings very broad and somewhat 

 diffuse, on hind wing frequently contorted 

 and confused. 

 a '. Upperside : deep purplish brown with a 



silvery frosted appearance in certain j N. macropkthalma, 

 lights | p. 382. 



* This key does not include N. norcia, Felder, of which I have not seen a 

 specimen. 



