Xanthesma evansi, or Xanthesma (Xenohesma) evansi, is a species of bee in the family Colletidae and the subfamily Euryglossinae. It is endemic to Australia. It was described in 1965 by American entomologist Charles Duncan Michener.
The species occurs in South West Queensland. The type locality is Cunnamulla.
The adults are flying mellivores.