Explanation of Plate A. 



Variation in clasps of Plebeius argus (aegon). Ends of clasps 

 X 60 diams. 



Figs. 1 and 2. Right and left clasps of a specimen from Bejar, Spain. 

 „ 3 ,, 4. Right and left clasps of a specimen from Canales, 



Spain. 

 „ 5 „ 6. Right and left clasps of a specimen from Digne, 



France. 

 „ 7 „ 8. Right and left clasps of a specimen from Claremont, 



England. 

 „ 9 ,, 10. Right and left clasps of a specimen from Kent (?), 



England. 

 „ 11. One clasp from a Japanese specimen. 



„ 12. One clasp from a Japanese specimen (micrargus). 



,, 13. One clasp from an English specimen. 



„ 14. One clasp from an English specimen (Kent ?). 



„ 15. One clasp from an English specimen (Kent 1) 



