THE ENTOMOLOGIST 



Vol. XLVI.l 



APEIL, 1913. 



[No. 599 



VARIETY OF ARGYNNIS ADIPPE. 

 By F. W. Frohawk, M.B.O.U., F.E.S. 



Argijnnis adippe var. 



The above figure represents a remarkable variety of Argi/imis 

 adijjpe (male), captured in Kent, July 7th, 1888, now in the Tring 

 Museum, and kindly lent me by the Hon. Walter Eothsehild. 

 The upper side has the fulvous ground colour rather paler than 

 in normal examples, and the whole of the usual black markings 

 are replaced by a very pale leaden or pearly-grey colour ; the 

 usual olive basal area of the wings of adippe is, in this specimen, 

 inclining to pinkish -buff, and somewhat paler than the rest of 

 the ground colour. The under side is similar in colouring to the 

 upper, excepting that the spots on the upper wings are rather more 

 leaden ; the hind wings are without the usual greenish-ochreous 

 tint at base and inner margin, but the silver spots are normal in 

 both colour and pattern. The antenna, head, thorax and abdo- 

 men are much paler than in typical specimens. The black 

 pigment is entirely absent from every part of this insect. 

 Varieties of this form of partial albinism are extremely scarce. 



I am also indebted to Mr. A. E. Gibbs for the loan of another 

 specimen of A. adippe of the same form of variation ; the only 

 difference is in the spots on the under surface of the fore wings, 

 which are pale rusty-brown. In other respects it is identical 



ENTOM. — APRIL, 1913. K 



