Sand-coloured Carder Bee 
Sapyga centrata 
Sapygina decemguttata 
Saxon Wasp 
Scabious Sawfly 
Scabious Sawfly 
Scaptotrigona postica 
Scarlet Oak Sawfly 
Sceliphron curvatum 
Sceliphron destillatorium 
Sceliphron spirifex 
Scirtetes robustus 
Scolia fuciformis 
Scottish Wood Ant 
Shimmering Golden Sugar Ant 
Shiny-headed Wasp-Sawfly 
Sicilian Mortar Bee 
Silk-Button Spangle Gall Wasp 
Silver-tailed Petal-cutter Bee 
Sitka Bumble Bee 
Six-spotted Scolia 
Slender-faced Masked Bee 
Slender-scaped Carpenter Bee 
Small brown paper wasp