( Iviii ) 



The whole of the offspring are marked examples of the 

 tukuoa or dry phase. The damp heat to which Nos. 7 and 8 

 were subjected hurried the transformation in a remarkable 

 manner, the pupal period only enduring for eight days, instead 

 of from eighteen to twenty days, as in Nos. 1-6, But with 

 all this hardly any eif ect, if any, has been wrought upon the 

 pigments. The upper-side colouring of Nos. 7 and 8 is very 

 slightly lighter than that of two out of the three other males 

 (Nos. 2, 5, and 6), but is about the same as the third. Upon 

 the undei^-side, where the essential distinction between the 

 phases is manifest, no difference can be detected. 



Pi'ofessor E. B. Poulton exhibited ten specimens of Precis 

 sesamus, captured at a height of about 5000 ft. on the S.E. 

 slopes of Kilimanjaro by the Rev. K. St. Aubyn Rogers. The 

 dates, seasonal phases and condition of the specimens are 

 shown below : 

 Mamba state, 

 1905. 

 Sept. 19, 1 Precis sesamus, Q (dry season phase), not much worn. 

 „ 22, 1 „ „ O „ „ nearly perfect. 



„ 22, 1 „ „ „ „ rather worn. 



„ 22, 1 ,, „ Blight tendency towards inter- 



mediate ; worn. 

 „ 22, 1 „ „ very much worn and very ragged. 



The symmetrical injuries suggest 

 the attack of a bird or lizaid. 

 g- /-I ^ Precis sesamvs, ® (wet season phase), quite 

 „ 22, sj fresh. 



s"^l 9 M f) slight tendency towards 



intermediate. Slightly 

 worn and very badly 

 notched and torn, pro- 

 bably by enemies. 

 „ 2.5, 1 Precis sesamus, worn and much notched. 

 „ 25, 1 „ ,,0 (intermediate.) On dry side of 



intermediate. Much worn and a 

 great part of both hind-wings 

 shorn away. 

 Marang state, 

 1905. 

 Sept. 25, 1 „ -5 O very slight tendency towards inter- 



mediate. Worn and notched. 



