1 | Larger species, TL more than 2.0 mm; color darker, uniformly blackish brown or black | Tapinoma simrothi Krausse |
– | Smaller species, TL less than 2.0 mm; uniformly pale yellow or brownish yellow, or at least with gaster yellow | 2 |
2 | Propodeum in profile with the transition from dorsum to declivity sharply defined, the declivity concave and the angle with a raised apex; brownish yellow or yellowish with very faint brownish tint on head dorsum, appendages clear yellow | Tapinoma wilsoni sp. n. |
– | Propodeum in profile with the transition from dorsum to declivity no more than a rounded angle; head and mesosoma dark yellowish-brown, gaster yellow | Tapinoma melanocephalum (Fabricius) |