Wasmannia williamsoni

Kusnezov (1952) described the Wasmannia fauna of Argentina, and Wasmannia sulcaticeps and Wasmannia williamsoni were described as having an allopatric distribution. Wasmannia sulcaticeps occurred in more humid environments near Buenos Aires and in the northern provinces of Tucuman, Salta, and Jujuy. Wasmannia williamsoni occurred in the more arid habitats west of Buenos Aires. (Longino & Fernández 2007)

Identification
Wasmannia williamsoni has the largest workers in the genus, based on the one worker we have examined. It is far larger than any other Wasmannia worker we have seen. Wasmannia sulcaticeps and Wasmannia williamsoni are two related species that occur at the far southern limit of the genus, in Argentina. They are both distinguished from other members of the genus by the heavy striate sculpture on the face and by the very small propodeal spiracle. (Longino & Fernández 2007)

Distribution based on Regional Taxon Lists
Neotropical Region: Argentina.

Nomenclature

 *  williamsoni. Wasmannia williamsoni Kusnezov, 1952e: 181, figs. 1, 4-7 (w.q.) ARGENTINA.