Hapalotremus exilis (Mello-Leitão, 1923) and Hapalotremus muticus (Mello-Leitão, 1923), previously considered as nomina dubia are here revalidated through the examination of the holotypes. Dolichothele Mello-Leitão, 1923 is revalidated and their type species, Dolichothele exilis Mello-Leitão, 1923 is restored. Goniodontium Mello-Leitão, 1923 and Oligoxystre Vellard, 1924 are considered junior synonyms of Dolichothele. Hapalotremus muticus and Oligoxystre caatinga Guadanucci, 2007 are considered junior synonyms of D. exilis. All species of Oligoxystre are transferred to Dolichothele. Cyclothoracoides Strand, 1929, currently a junior synonym of Hapalotremus Simon, 1903, is here considered a junior synonym of Homoeomma Ausserer, 1871.