RUBALINM. 271 



both of wliich the outer black band to the forewing ou the upperside being half as 

 wide will distinguish Z. leiha ; the markings of the underside also are entirely different 

 to any other species described from the Indian region except Z. zilia, Hewitson, with 

 which they agree somewhat closely, but the coloration of the upperside is entirely 

 different, being in both sexes of that species dull blue ; it is also closely allied to Z. 

 scintillans. Leech, from Chang-Yang, in Central China, and has the apex of the forewing 

 similarly acute, but difi'ers in the less prominence of the orange markings on the 

 underside of the hindwing. Z. diamentina, Oberthlir, from Amurland and the Island 

 of Askold, is another very closely allied species, and principally differs in the greater 

 development of the orange coloration at the anal angle of the hindwing on the 

 underside ; that species is said by Leech to equal Z. smaragdina, Bremer. 



Described from a single male taken near Tiddim in the North Chin Hills in May ; 

 Tiddim is situated on an off-shoot of the Letha range, at an elevation of about 

 5,000 feet. The type specimen is in de Niceville's collection. (Watson.) 

 ■ Expanse of wings, $ 1^ inches. 



Habitat. — Burma, Assam. 



We have not seen the type, it is now in the Indian Museum, Calcutta ; we have a 

 male from the Khasia Hills which corresponds well with Watson's description and 

 figure ; the coloration of the underside is fawn colour, as stated by Watson, but it is 

 somewhat darker than the underside of his figure, in every other respect it exactly 

 corresponds to his figure and description ; our figures are from our Khasia Hill 

 example ; the female is unknown. 



RURALIS ZOA. 



Plate 704, figs. 3, ^ , 3a, <J . 



Zephyrus zoa, de Niceville, Journ. Bo. Nat. Hist. Soc. 1889, p. 167, pi. A, fig. 3, ^ ; id. Butt, of 

 India, iii. p. 302 (1890). 



Imago. — Male. Upperside, both wings black. Forewing with all but the outer 

 margin (which is somewhat broadly and evenly of the ground colour) and the veins 

 (which are black) clouded with rich metallic iridescent dark green scales (exactly as 

 in Ilerda viridipunctata njihi), this colour in some lights is quite invisible. Hindwing 

 with a patch of similar green scales in the middle of the wing, the costa and outer 

 margin being broadly of the ground colour, the abdominal margin a little paler fuscous. 

 Underside, both wings dull fuliginous-black. Forewing with a deeper black discocellular 

 mark outwardly defined by a fine silvery white line ; an indistinct, somewhat broad, 

 straight, blackish discal band from the costa to the first median nervule outwardly 

 defined by a fine silvery white line ; an indistinct, blackish sub-marginal baud which 

 widens out on either side of the first median nervule, and is there rather prominent. 



