Torleya major

Subimago  male

  -    . . .

  - Order Ephemeroptera
  - Family Ephemerellidae
  - Genus Torleya
  - Species major  

The Torleya hatches in May and June. It looks similar to the S.ignita but is bigger, body is olive




The cerci are pale yellow and without dark rings




Ventral view (not a great pictures, sorry)