SATYRID^. 247 



fulvous patch. Witii these, usually, appear one or two black 

 dots on the fore wings, below the sub-apical round spot, 

 distinct on the upper side, but rarely visible on the under. 

 This series of variations I found commonly in a lane close to 

 the sea in Pembrokeshire. Elsewhere a further development 

 takes place, the additional dots on the fore wings becoming 

 distinct round spots with white centres. Such have been 

 found rather commonly on some of the slopes of Dartmoor by 

 Major Still, and others have been met with in Kent, Surrey, 

 Norfolk and Essex. This excessive, and ornamental, enlarge- 

 ment of spots extends occasionally to the hind wings, some 

 specimens showing, besides the two extra white-centred spots 

 on the fore wing, four similar upon the hind, two of them 

 even becoming oval in shape, and similar on the under side, 

 where the usual row has increased to six in number. Still 

 another form of variation, or rather aberration, consists in 

 the substitution of pale yellow, or silvery white, for the 

 fulvous ground colour, the brown markings being unaffected, 

 or even intensified ; as in a male in Mr. H. Goss's collection, 

 having broad dark brown margins and central cloud, yet the 

 ground colour nearly white. Mr. S. J. Capper has a straw- 

 coloured male, one sent me from Gloucestershire by Mr. 

 E. C. L. Perkins is whitish except a fulvous tinge near the 

 marginal band, and Dr. Mason has one with the fore wings 

 half fulvous, half white. Mr. S. Webb has both sexes of a 

 clear silvery white, the female combining with this the other 

 variation of large extra spots in the fore wings ; also one in 

 which the hind wings are shaded with white from the mar- 

 gins ; and Mr. S. Stevens, besides a silvery white female, 

 taken at Torquay, and another of the same sex in which the 

 brown marginal band has disappeared, has a male without 

 the sub-apical black spot. 



On the wing in July and August. 



Larva, when full grown, somewhat fusiform, thickest at 

 the seventh segment, and tapering to both extremities ; head 



