Temnostethus wichmanni, Wagner, 1961a: 88. New name for T. crassicornis Wagner.
Temnostethus crassicornis Wagner, 1949a: 183 (junior primary homonym of T. crassicornis Reuter, 1875). NT (Wagner, 1952c: 161): male, Germany, Bavaria, Hebertshausen; ZSMC.
Temnostethus wagneri Ruhoff, 1963: 246 (syn. Péricart, 1972: 93). New name for T. crassicornis Wagner.