Group crassipes

Diagnosis. Males of the group crassipes are recognized by the following combination of characters: Small total length; patterns of coloration on legs or palpal articles present; embolus with three keels; BTA developed (except on A. paranensis); serrated area on prolateral embolus large, densely covered by relatively large denticles. Females are recognized by the spermathecae having two bilobed receptacles, with outer lobes higher than inner lobes; pore distribution reaching 75% of apical portion on each receptacle.

Species included. Actinopus crassipes (Keyserling, 1891); Actinopus dubiomaculatus Mello-Leit „o, 1923; Actinopus paranensis Mello-Leit „o, 1920; Actinopus pusillus Mello-Leit „o, 1920; Actinopus emas sp. nov.; Actinopus bocaina sp. nov.; Actinopus laventana sp. nov.; Actinopus gerschiapelliarum Ríos-Tamayo & Goloboff, 2018; Actinopus magnus Ríos-Tamayo & Goloboff, 2018; Actinopus puelche Ríos-Tamayo & Goloboff, 2018 .