DUKE OF BURGUNDY AND THE SKIPPERS 201 



and much more distinct ; and here, too, the male (Plate VII, fig. 16) 

 is to be distinguished from the female by a black streak crossing 

 the front wings obliquely. The under surface has a greenish tinge, 

 more particularly on the hind wings ; 

 and this side is conspicuously marked 

 with a number of white square spots 

 with sharp outlines, arranged as shown 

 in fig. 96. 



Although common in some locali- 

 ties, this butterfly is not widely distri- JT IG gg ^HE SILVER- 



buted. It is confined to some of the SPOTTED SKIPPER UNDER 



southern and midland counties of Eng- SIDE. 



land, and is particularly partial to the 



chalk districts of the south-east. On the chalk downs of Kent, 



Surrey, and Sussex it is moderately common. It is on the wing 



during July and August. 



The caterpillar feeds on certain leguminous plants, among which 

 are the bird's-foot (Ornithopus perpusillus) and the bird's-foot 

 trefoil (Lotus corniculatus). 



The Chequered Skipper (Carter ocephalus Palcemon) 



This is another local insect, more so even than the last, but 

 it sometimes appears in profusion in certain limited districts. 

 Kettering, Oundle in Northamptonshire, and Monk's Wood in 

 Huntingdonshire are places where it has been taken freely. It 

 appears in June. 



The wings are chequered with very dark brown and orange. 

 The fore wings are bordered with small rounded yellow spots, and 

 beside these there are about nine very conspicuous yellow spots on 

 the fore wing and three on the hind wing. The arrangement of 

 these markings may be seen in fig. 17 of Plate VII. 



The caterpillar feeds on the greater plantain (Plantago major}. 



