Group nattereri

Diagnosis. The species in the group nattereri are recognized by the following combination of characters: Medium to large in total length; embolus with three keels; BTA developed; serrated area above PAc in prolateral view reduced. Females are recognized by the spermathecae with two receptacles, without lateral swelling.

Species included. Actinopus nattereri (Doleschall, 1871); Actinopus rufipes (Lucas, 1834); Actinopus vilhena sp. nov.; Actinopus harveyi sp. nov.; Actinopus itapitocai sp. nov.; Actinopus ipioca sp. nov.; Actinopus itaqui sp. nov.; Actinopus xingu sp. nov.; Actinopus mesa sp. nov.; Actinopus caxiuana sp. nov.; Actinopus utinga sp. nov.; Actinopus reycali Ríos-Tamayo & Goloboff, 2018; and Actinopus septemtrionalis Ríos-Tamayo & Goloboff, 2018 .