ON NEW AND LITTLE-KNOWN BUTTERFLIES. 379 



nervules are very concave instead of straight, the discoidal nervule 

 is obsolete, in A. athinsoni it is fairly well developed ; lastly, the 

 palpi differ considerably, the third joint being almost entirely hidden 

 beneath the long hairs of the second joint instead of being projected 

 far beyond that joint. In Arnetta athinsoni the male has the bases 

 of the first and second median nervules of the hindwing much swollen, 

 this character being found also in the same position in the genera 

 Gangara, Moore, and Paduka,* Distant, but is absent in the genus 

 Itj/s. 



41. (1) ITYS IADERA, n. sp., PI. Q, Fig. 52, $. 



Habitat : Penang, Malay Peninsula ; N.-E. Sumatra. 



Expanse : $, 1/2 to 1*4 inches. 



Description : Male. Upperside, both wings and cilia shining 

 brownish-fuscous, immaculate. Forewing with the sexual tuft of haira 

 attached to the inner margin and turned under and forwards deep 

 black. Underside, both wings as above. Head, antennae, body 

 throughout, and legs fuscous. 



This species is one of the most plainly-coloured butterflies I know, 

 and is altogether without markings. 



Described from one male from Penang, and three from JNT.-E. 

 Sumatra, one of which was taken in the Battak Mountains in 

 September, all in my collection, and others in the collection of 

 Eofrath Dr. L. Martin. 



(2) ITYS MICROSTICTUM, W.-M. and de N. 



Isoteinon microstictum, Wood-Mason and de Niceville, Journ. A, S. B., vol. lv, pt. 2 

 p. 385, n. 232, pi. xvii, figs. 3, male ; 3a, female (188G). 



Habitat : Silcuri, Cachar {Wood-Mason and de Nichille) ; Silehar, 

 Cachar (coll. de Nice'ville). 



Genus PUDICITIA, nov. 



Male. Forewing, slightly arched regularly and evenly throughou t ; 

 apex rather acute ; outer margin nearly straight, convex below the 



* Paduka, Distant, and Paduca, Moore, were described in the same year (1886), and the 

 former has priority. As, however, there is a slight difference in spelling, perhaps both may 

 be allowed to stand. 



