S. laeta may refer to:Scolopendra laeta, a tropical centipede Senegalia laeta, a perennial legume Simianellus laeta, a polyphagan beetle Smaragdina laeta, a short-horned leaf beetle Smicropus laeta, a geometer moth Smidtia laeta, a tachina fly Splendrillia laeta, a sea snail Strophiona laeta, a lepturine beetle Styphelia laeta, a heather endemic to Australia and the Pacific Islands Synemon laeta, an Australian moth