Tumidihesma flaviceps is a species of bee in the family Colletidae and the subfamily Euryglossinae. It is endemic to Australia. It was described in 1996 by Australian entomologist Elizabeth Exley.
The specific epithet flaviceps refers to the distinctive golden-yellow colouring on the head.
Only female specimens have been collected; males are unknown. Body length is 6 mm, wing length 4 mm. The head is black with a golden-yellow clypeus. The species is distinguished by the colour of the clypeus from that of its congener T. tridentata, which is reddish-brown.
The species occurs in south-west Western Australia. The type locality is Coolgardie. It has also been recorded from Southern Cross. The habitat is arid, with a desert climate.
The adults are flying mellivores. Flowering plants visited by the bees include Eucalyptus species.