NEW AND LITTLE-KNOWN INDIAN BUTTERFLIES. 177 



16. HESPERIA HELLAS, n. sp., PI. B, Fig. 9, £ . 

 Habitat: Campbcllpur (Punjab). 

 Expanse: 1-05 inches. 



Description : Very close to II. galba, Fabricius (superna, Moore, 

 enniidus, Butler, and evanidus, var. adenensis, Butler), from which it 

 differs on the uppers] de oiboth icings in the white spots being smaller 

 and fewer in number, the discal macular band on the hind/wing 

 narrower, and notably the underside of the hindwing unspotted, 

 but bearing three equi-distant white bands, the first subbasal, 

 somewhat obscure ; the second discal, with nearly regular edges, of 

 nearly equal breadth throughout, unbroken, extending from the 

 costa to the white abdominal streak ; the third obscure, marginal. 



I possess two specimens of this species collected by Major J. ~W. 

 Yerbury. They can at once be distinguished from the very 

 numerous specimens of H. galba before me from Aden, Sind, and 

 indeed from almost all parts of India (the type was from Tran- 

 quebar), and from Ceylon, by the prominence and regularity of the 

 bands of the hindwing on the underside, especially the medial one. 

 In H. galba the medial band is usually continuous, but it always has 

 very irregular edges, it is often broken up into groups of spots, 

 particularly in some specimens from Aden, and is described as 

 characteristic of H. evanidus ; this does not, however, appear to be 

 a constant feature, as I find from an examination of specimens 

 from the Hubb river in Colonel Swinhoe's collection, which were 

 captured with the types of that species. Colonel Swinhoe, in his 

 two papers on the Lepidoptera of Karachi, records both II. galba and 

 H. evanidus from that city, but on a careful examination of his 

 series of both species I am unable to say by what character he 

 separated them, every gradation, as far as I can see, occurring 

 between typical H. galba with the medial band on the underside 

 of the hindwing unbroken and typical H. evanidus with the band 

 divided into three well- separated spots. I find the same variation 

 also in specimens from Aden. 



Genus CELJENOERHINUS, Hubner. 



Cel&norrMnus, Hubner, Verz. bek. Schmett,, p, 106 (1816); id., Plotz, Berl. Ent. 

 Zeitsch., vol. xxvi, p. 253 (1882) ; Gehlota, Doherty, Journ. A. S. B. vol. lviii, pt. 2, 

 p. 131 (18S9); Plesioneura (preoc), part, auctorum. 



Forewing, costa slightly arched, apex rather acute, outer margin 

 convex, inner margin straight ; costal nervure terminating opposite 



