Tapinoma collina Foerster, 1850 junior synonym of current valid taxon Tapinoma erraticum (Latreille, 1798)
Tapinoma collina Foerster, 1850a: 43 (w.q.) GERMANY. Palearctic.
Primary type information: Primary type material: syntype workers, syntype queens (numbers not stated). Primary type localities: Germany: Siebengebirge (A. Foerster), Germany: nr Boppard (A. Foerster), Germany: Aachen (A. Foerster), Germany: Schneeberg, nr Vaels (A. Foerster). Primary type depository: MNHU. Type notes: Seifert et al., 2024: 34, state that all syntypes are "obviously lost".