136 THE BOOK OF BRITISH BUTTERFLIES. 



scalloped. The ground-colour is creamy-white and the 

 markings are black, the black and white covering about 

 equal portions of the total area. The arrangement of the 

 two colours can be seen from the illustration. On the 

 under-surface (Fig. 139) the coloration closely resembles 

 that of the upper surface, but many of the black markings 

 are here represented by greyish ones or lines simply. 

 There is an eye-spot near the tip of the fore-wings, while 

 five are found along the hind-margin of the hind-wings, 

 the one nearest the anal angle having two eyes. 



Galatea varies a little in the development of the black 

 markings, and mention has been made in The Zoologist 

 of a specimen pure creamy-white in colour without any 

 black markings whatever. Now and again the ground- 

 colour is pure white instead of cream, the markings being 

 normal. 



Erebia, Bdv. 



Erebia is a mountain-loving genus, and is in Britain 

 restricted to the northern part of the island. It contains 

 but two British species, E. epiphron and E. cethiops. 

 In general appearance the two butterflies bear a con- 

 siderable resemblance to one another, and will easily be 

 recognised as congeners. They have black bodies and 

 dark chocolate-brown wings, both body and wings being 

 very woolly in appearance. The genus is better repre- 

 sented in mountainous districts on the Continent ; the 

 species, however, are often local and on the wing for a 

 very short time. 



E. epiphron, Knoch, E. cassiope, Fabr., possesses 

 two common names, the Mountain Ringlet and the 

 Small Ringlet ; but as Ccenonympha typhon is sometimes 

 called the Small Ringlet, the former name in this case 

 seems to be preferable. This is the only really Alpine 



