The genus Hylcalosia Fischer, 1967 (Braconidae, Alysiinae, Alysiini) is revised. The type-species, H. ruficeps (Cameron, 1910) from Burma is redescribed and illustrated. Two new species, H. hemiflaua spec. nov. from Indonesia, and H. maetoi from Japan, are described and illustrated. The species of Hylcalosia are keyed and their phylogeny is discussed.