The concept of the alysiine genus Heratemis is expanded to include several Indo-Pacific species formerly included in Phaenocarpa or Conalysia. Conalysia Papp, 1969 is treated as a synonym of Heratemis Walker, 1860. Two species of Heratemis are known from Taiwan: H. filosa Walker and H. laticeps (Papp). Intraspecific variation is described for Taiwanese populations of H. filosa.