Lasius emarginatus brunneoemarginatus Forel, 1874 junior synonym of current valid taxon Lasius emarginatus (Olivier, 1792)
Lasius niger var. brunneoemarginatus Forel, 1874: 47 (w.) SWITZERLAND. Palearctic.
Primary type information: Primary type material: syntype workers (number not stated). Primary type locality: Switzerland: Lugano and Zürich (A. Forel). Primary type depository: probably MHNG. Type notes: Seifert, 1992b: 34, cited 6 worker syntypes, but Seifert, 2020a: 70, later decided these were not type material.