Group osbournei

Diagnosis. The species in the group osbournei are recognized by the small total length; legs with metatarsi and tarsi paler than other articles;abdomen without scutum; sigilla converging to middle of sternum but separated; embolus with three keels; tegulum thin and elongated; BTA developed and placed medially on prolateral tegular surface; PA continuous to PAc.

Species included. Actinopus osbournei sp. nov.; Actinopus dioi n. sp; and Actinopus patagonia Ríos-Tamayo & Goloboff, 2018.