Euponera (Trachymesopus) obsoleta Menozzi, 1931d: 196, fig. 5 (w.) COSTA RICA. Neotropic.

Primary type information: Primary type material: lectotype worker (by designation of MacKay & MacKay, 2010: 352). Primary type locality: Costa Rica: Vara Blanca, 2000 m., between Barba Volcano and Poas (H. Schmidt). Primary type depository: NHMB. Secondary type information: Secondary type locality: same as for lectotype. Secondary type depositories: IEUB, DEIM. Type notes: 1) Original description cites “several” syntype workers. 2) Baroni Urbani, 1973b: 135, cites 1 worker syntype in NHMB.