on Eastern Butterflies. 331 



as well as by the form and position of the ocelli in the 

 female. In some males, the pale bronze border is 

 dilated on the hind-wings into a broad whitish band. 

 The Morpho hioculatus of Guerin, with which the female 

 has been confounded, is a Drusilla, which wonderfully 

 resembles it above. 



Genus Euettela, Boisduval. 



This essentially African genus is represented in the 

 Malayan Islands by two very well-marked species, both 

 of which appear to be somewhat rare, while it has not yet 

 been found in India, a peculiarity of distribution which 

 is analagous to that of the anthropoid apes. 



1. EURYTBLA CaSTELNAVI. 



Eurytela Castelnaui, Feld. Wien. Ent. Monats. 1860, p. 

 401; Nov. Voy. Lep. tab. Ixi. f. 5, 6. 



Hab. — Singapore, Borneo (Wall.); Malay Peninsula 

 (Feld.) . 



A remarkable species, of a deep ultramarine blue, with- 

 out gloss. 



2. Eurytela Horsfibldi. 



$ . Eurytela Horsfieldi, Boisd. Faun. Ent. Madagasc. p. 54. 

 ? . E. Stephensi, Boisd. lib. cit. p. 55. 

 Hab. — Java. 



Though so different in colour, there can be little doubt 

 that these two insects are the sexes of one species, since 

 the structure of the feet shows that the blue are males, 

 and the brown females. 



As BoisduvaPs descriptions are given in a work where 

 they would not be expected to occur, I repeat them here. 



'^ Eurytela Horsfieldi. Alis dentatis, supra nigro-cyanes- 

 centibus, fascia commvmi discoidali evanescente dilutiori ; 

 subtus fusco-grisea, lineis 4 undulatis fuscis, posticis 

 rotundatis, anticis apice productis." 



''Eurytela Stephensi. Alis dentatis, fusco-ferrugineis, 

 lineis 4 undulatis fuscis, fasciaque discoidali communi, in 

 anticis interrupta, lutea; subtus pallidioribus, posticis 

 rotundatis, anticis apice productis.^' 



