Liometopum stygium

Distribution
This taxon was described from Switzerland (Miocene).

Nomenclature

 * † stygium. †Poneropsis stygia Heer, 1867: 27, pl. 1, fig. 20 (q.?) SWITZERLAND (Miocene).
 * Incertae sedis in Formicidae: Taylor, 1964: 138;
 * Combination in Liometopum: Dlussky & Putyatina, 2014: 277 [by implication because Liometopum senior synonym of †Poneropsis: Dlussky & Putyatina, 2014: 245].
 * Status as species: Dalla Torre, 1893: 53; Handlirsch, 1907: 881; Bolton, 1995b: 363.