Plagiognathus infuscatus Fieber, 1861a: 303. STS: male, Spain, Sierra da Guadarrama.
Orthotylus pallidus Meyer-Dür, 1870b: 209 (syn. Puton, 1873: 24). LT (Kerzhner, 1996b: 269): female, France, St. Tropez; AMNH.
Icodema infuscatum var. notaticornis Rey, 1894b: 1. ST(S): France?
Icodema infuscatum f. annulata Stichel, 1956: 276b.