DEVANICA. 75 



resemblance of some species to Enplaa^ but there are others 

 having a similar analogical resemblance to Tirumala in the 

 Danaina, Euschema in the Geometrce, and to various species of 

 Equitidce, Zygwiidce, Arctiida, Lithosiidcs, &c. ; in fact, the 

 Family Chalcosiida exhibits the phenomenon called, rightly or 

 wrongly, " mimicry," to an unusual extent. 



I will conclude my notice of this Family with another 

 Indian genus. 



GENUS DEVANICA. 



Eterusia, Hope, Trans. Linn. Soc. Lond. xviii. p. 445 (1840); 



Walker, List Lepid. Ins. Brit. Mus. ii. p. 427 (1854). 

 Heterusia, Doubleday, Zoologist, ii. p. 468 (1844); Hampson, 



Faun. Brit. India, Moths, i.p. 259 (1892). 

 Sephisa, Moore, Lepid. Ceylon, ii. p. 41 (1882). 

 Devanica, Moore, Trans. Ent. Soc. Lond. 1884, p. 358. 



This genus is exclusively Indo-Malayan as far as is known 

 at present, and most of the species are met with in Northern 

 India. The wings are longer and narrower than in most other 

 genera of the Family, and on the fore-wings, the discoidal cells 

 form acute angles, and the nervule that springs from the angle 

 of the upper cell throws off four branches, and that springing 

 from the lower cell two, the nervules being nearly straight, 

 instead of some being strongly arched, as in Erasmia, &c. 



Heterusia (as Eterusia should be written, if used at all) 

 and Sephisa, Moore, are both pre-occupied names. The 

 types of Devanica are D. cingala (Moore), a species with white 

 spots, and white hind-wings, found in Ceylon, and D. bicolor^ 

 Moore, from Cachar, which has green fore-wings, with an oblique 

 row of pale yellow spots separated by blue nervures ; and 

 orange hind-wings, veined with black, and the inner margin 

 green. 



