Chtonolasius Ruzsky, 1912 a misspelling of Chthonolasius Ruzsky, 1912
Chtonolasius Ruzsky, 1912: 630 [as subgenus of Lasius] Type-species: Formica umbrata (obsolete combination of Lasius umbratus), by subsequent designation of Emery, 1925d: 232.
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