Acampsohelconinae Tobias 1987

Subfamily Acampsohelconinae Tobias, 1987 Tobias 1987: 847; van Achterberg 2002: 350; Yu et al. 2016. This is a small subfamily comprising only three extant genera (Afrocampsis van Achterberg & Quicke, 1990; Canalicephalus Gibson, 1977 and Urosigalphus Ashmead, 1889) and one extinct genus (Acampsohelcon Tobias, 1987). Afrocampsis is distributed exclusively in the Afrotropical region, species of the genus Canalicephalus are only known from the Oriental region, and the members of Urosigalphus are distributed predominantly in the fauna of the New World with the rare penetration of a single species in the eastern part of the Old World (Japan) and introduced into the Oceanic region (Yu et al. 2016).