THE BUTTERFLIES OF MUSSOORIE. 591 



wion in the Dun almost throughout the year, especially the rains' 

 brood which flies in August and September. 



241. Appias lalage, Doubleday. 

 Very common in Mussoorie and on the adjoining hills in April and 

 May. The sexes here differ but slightly, the dry-season form of the 

 female being alone found. The butterflies seem always to be flying 

 from east to west, this observation having been made at two places 

 more than twenty miles apart. 



242. Appias libythea, Fabricius. 

 In Colonel A. M. Lang's collection is a single female taken at Mus- 

 soorie on 17th June, 1868, at 7,000 feet elevation. 



243. Nepheeonia hippia, Fabricius. 

 Occurs rarely in the Aglar Valley below Mussoorie in August and 

 September; very common in the Dun from August to December. 

 The female is dimorphic, the commoner form has the basal inter- 

 nervular streaks of the hindwing on the upperside concolorous with 

 the rest of the surface, the rarer form has them yellow. 

 244. Ixias Marianne, Cramer. 

 Is common in Mussoorie and in the Dun in September and October. 



245. Ixias pteene, Linnaeus. 

 Brought in by collectors from near the Baspa Valley at a 

 considerable elevation in August. The female has no yellow 

 markings whatever on the upperside, being simply black and white 

 thereby agreeing, except in its smaller size, with typical I. evippe, 

 Drury. 



246. Teeacolus (Callosune) eteida, Boisduval. 

 Very rare in Mussoorie, one specimen each taken in April and 

 May, three in August and September. 



Sub-Family Papilionin^e. 

 247. Teoides (Pompeoptera) ^acus, Felder. 

 Very common in a valley to the north-east of Mussoorie in Tehri 

 Garhwal in May, flying high up amongst the flowers of the wild 

 horse-chestnut tree, JEsculus indlca, Colebr., Natural Order Sapindacece. 

 This is probably the most westerly point of its range, to the east it 

 reaches China and Siam. 



248. Papilio (Menelaides) abistolochlss, Fabricius. 

 Found rarely in the Dun in April and October. 



