92 L. de Niceville — List of Butteriiies talien in Silchim. [Nos. 2 — 4 



Vr. — Third List of Butterflies talcen in SlJclcimin Octoler, 1883, with notes 

 on habits, ^c. — Bt/ Lioj^el de NiceVille. 



[Received November 6th ; read November 7th, 1883.] 



[With part of Plate X.] 



In my two previous papers* on the Butterflies of Sikkim met with in 

 the month of Octoher, I enumerated 203 species. The present list adds 

 81 species more, making a total of 284 species actually seen or taken ab 

 different elevations in Sikkim in a single month in the year. This list is 

 even now by no means exhausted, and goes to show how very rich the 

 Bhopalocerous fauna of the hills and valleys near the Station of Darjiling 

 is. Except where otherwise specified, all the numbered species given below 

 were taken at low elevations (say between 1,000 and 2,000 feet above the 

 sea) ; and it is to be remarked that my experience proves that almost with- 

 out exception in the hills it is the bottoms of valleys through which streams 

 run that are the richest in Butterflies, the extreme tops and ridges being 

 the next most productive, while the sides and intermediate slopes produce 

 hardly anything. 



In " The Butterflies of India" it is stated by Major Marshall and myself 

 (p. 87), that Eupl(Ba alcathoe^^ 2L^^Q2iY^ to be not uncommon" in Sikkim. The 

 Indian Museum, Calcutta, possesses a single sj)ecimen of this species from 

 Sikkim collected by Schlagintweit, obtained from the late East India 

 Company's Museum, but Mr. Otto MoUer who has assiduously collected for 

 three years near Darjiling and also in the Sikkim tarai, has not met with it, 

 so if it does occur in Sikkim, it will probably only be found far in the 

 interior in native territory. Danais limniace is not given in our book as 

 occurring in Sikkim, but Mr. Otto MoUer has met with some two or three 

 specimens (one in the tarai, two in the Runjit valley), so it does occur 

 there, but rarely, however, and is not wholly replaced (as stated in my last 

 paper) by D. sepentrionis. 



Mr. Paul Mowis, who during the last summer purchased large 

 numbers of the boxes of Sikkim butterflies collected by the Lepclias, most 

 generously allowed me to select for the Museum what specimens I wanted, 

 and amongst others I obtained single examples of Hypolyccena nasaka, 

 Horsfield, and Isoteinon masuriensis, Moore, identical with North- West 

 Himalayan specimens, except that the ground-coloar of the underside 

 of the former is darker; of Hesperia acrolenca, Wood-Mason and de 

 Niceville {=^11. hiraca, Moore) identical with specimens from the South 



* Journ. A. S. B., vol. 1, pt. ii, pp. 49—60 (1881) ; and id., vol. li, pp. 54—66 

 (1882). 



