1881.] Diurnal Lepidoptera inhabiting the JSFicobar Islands. 220 



the cell, one in each median interspace, and a large patch below the median 

 vein are all very prominent and (except the three subapical ones, which are 

 whitish above) violet-white ; in all the other specimens seen (except the 

 Kar Nicobar one, which has five) and described, there are only four spots ; 

 in these there are eight. 



10. Euplo3A (Crastia) simulatrtx, n. sp. 



$ . Wings above spotless black-fuscous suffused with the deepest 

 violet-blue, externally tolerably broadly bordered with paler unglossed 

 fuscous. 



Posterior wing with an oval patch of iridescent lighter modified scales 

 occupying about the second and third fifths of the length of the organ, 

 extending from the middle of the discoidal cell to the middle of the 

 interspace between the costal and subcostal veins at its widest part, and 

 bounded in front by an indistinct streak of cretaceous white ; and with 

 the wing-membrane in front of this oval patch and of the apical portion 

 of the first subcostal branch cinereous. 



Wings below lighter and less sombrely coloured, their dark basal 

 portions being distinctly glossed with purple-violet, more broadly bordered 

 with paler fuscous, and marked with prominent spots and streaks. 



Anterior wing with eight spots, viz., a subapical series of three dots, 

 the posterior of which is equal to the other two taken together, a somewhat 

 elongated large spot between the first and second median veinlets, nearly 

 pure white ; a reversed comma-shaped spot near the end of the cell, a rounded 

 one and a short linear streak beyond it, the former between the second 

 and third median veinlets and the latter between the second median veinlet 

 and the discoidal vein, and a subcostal spot on a level with the end of 

 the cell, bluish or violet white ; with a streak pointed at both ends in the 

 middle of the interno-median area, and, posterior to this, a similarly 

 shaped and placed patch divided by the submedian vein, cretaceous-white ; 

 and with the sutural cell behind the whitey-brown patch cinereous and 

 satiny. 



Posterior wing with a submarginal series of minute violet-white dots, 

 a cellular spot and a curvilinear series of six just outside it, bluish white, 

 in addition to the usual basal dots. 



Length of anterior wing, 1*8 ; whence expanse = 3*7 inches. 



A single specimen from Great Nicobar. On the upperside, it very 

 closely resembles E. camorta, of which it is in all probability a mimic, 

 differing from that species, however, in its rather darker and more sombre 

 hue and in being devoid of a silky sexual streak, and on the underside in 

 the presence of a submarginal series of dots in the posterior wing. 

 30 



