Salvin's clearwing 
Sandbar Purplewing 
Sapho Longwing 
Sara longwing 
Satyr Comma 
Satyrus parthicus 
Scarce Morpho 
Scarce tawny rajah 
Scarce tortoiseshell 
Scarlet Knight 
Scotch argus 
Seasonal Leafwing 
Shining Purplewing 
Short banded sailer 
Siderone syntyche 
Silky Owl 
Silver Emperor 
Silver Xenica 
Silver-studded Leafwing 
Silver-washed Fritillary 
Silvery checkerspot 
Small brown crow 
Small greasy 
Small Heath