Dasyhesma dilata is a species of bee in the family Colletidae and the subfamily Euryglossinae. It is endemic to Australia. It was described in 2004 by Australian entomologist Elizabeth Exley.
The specific epithet dilata (Latin: "spread out") is an anatomical reference to the placement of punctures on the mesosoma.
Measurements of female specimens are: body length 8.0 mm, wing length 5.0 mm. Males: body length 6.5 mm, wing length 4.5 mm. The head and mesosoma are dark red to black, the metasoma dark brown to black.
The species occurs in the Wheatbelt of Western Australia. The type locality is Yellowdine.
The adults are flying mellivores. Flowering plants visited by the bees include Baeckea species.