†Stigmomyrmex rugulosus Radchenko & Dlussky, 2017b: 775, figs. 2, 3 (w.) RUSSIA (Baltic Amber, Eocene), GERMANY (Bitterfeld Amber, Eocene).

Primary type information: Primary type depository: MAIG. Primary type specimen: MIBUG 1995. Secondary type information: Secondary type depository: Museum fur Naturkunde Berlin, Germany. Secondary type specimen: MfN 14/201.