( ^x ) 



taken by me on the mountains behind Simonstown, part of 

 the same range some six miles further south. The males were 

 on some occasions accompanied by females, distinguishable 

 from those of typical thyshe by their smaller size, broader 

 black hind-marginal band and lai'ger spots above ; the under- 

 side markings being much the same in all respects as those of 

 the ordinary female. Of these females 11 were secured. 



" No specimens of ordinary th/ysbe were taken or seen any- 

 where upon Minzenberg mountain, or nearer than the Sand 

 Hills upon the Flats about a mile from the foot of the 

 mountain (where there is a well-known haunt of ordinary 

 thyshe). The $ aberration taken on Simonstown mountain 

 was however flying among ordinary thyshe (of which 10 were 

 taken). 



" Subjoined are the particulars of capture of the aberration 

 extracted from my field-book : — - 



22 Oct. 1889 I $ (two others seen). 

 5 Nov. „ 16 c? examples. 



23 „ „ 13 c?,4 ? „ 

 4 Dec. „ 3 (? , 1 ? „ 



1 Jan. 1900 saw 1 S , took 1 5 example. 



1 Feb. ,, 6 c?, 1 5 exam]3le. 



23 „ ., 5 c?,4 $ „ 



4 March ,, saw and examined 1 $ and 1 9 ; took 



neither. 

 10 April „ IS (Simonstown Mtn.; among ordinary 

 thyshe). 

 " Several subsequent visits were paid to Minzenberg 

 Mountain, but no more were seen, the weather having become 

 cold and rainy and winter having set in. 



" From the specimens taken it appears that the aberration 

 itself varies considerably. For in several specimens the broad 

 apical and hind-marginal patch of the fore-wing is not wholly 

 black but there are small spots of the ordinary orange ground- 

 colour showing ; these spots are irregular in shape and ill- 

 defined at the edges, varying in number in different individuals 

 from two to six ; the spots are in some cases represented by a 

 few orange scales only ; in others they are conspicuous and 

 disposed in two rows : two spots in an outer transverse row 



