After a transcription of the original description of Lutzomyia (Trichopygomyia) dasypodogeton (Castro, 1939), first published very briefly in a non-scientific journal, the authors redescribe, with drewings of the importante taxonomic elements, both sexes of the species. A key for the identification of the species of the subenus Trichopygomyia Barreto, 1952, is also given.