Callohesma matthewsi is a species of bee in the family Colletidae and the subfamily Euryglossinae. It is endemic to Australia. It was described in 1974 by Australian entomologist Elizabeth Exley.
The species occurs in southern inland Australia. The type locality is Wyperfeld National Park in Victoria. It has also been recorded from Kukerin, Dedari and Lake King in Western Australia.
The adults are flying mellivores.