Genus Rhynchium Spinola
Rhynchium Spinola 1806: 84, genus, emendation of Rygchium validated by Opinion 747 (ICZN 1965; no. 1688 of Official List of Generic Names in Zoology).
Type species: Rygchium [!] europaeum Spinola 1806 [= Vespa oculata Fabricius 1781], by monotypy (no. 2095 of Official List of Specific Names in Zoology).
Rygchium Spinola 1806: 84, genus. Incorrect original spelling of Rhynchium Spinola, placed on Official Index of Rejected and Invalid Generic Names in Zoology (as no. 1768) by Opinion 747 (ICZN 1965).
Rhynchium Billberg 1820: 109 . Emendation of Rychium [!] Spinola; validated and placed on Official List of Generic Names in Zoology (as no. 1688) by Opinion 747 (ICZN 1965).
Rychium [!] Billberg 1820: 109. Placed on Official Index of Rejected and Invalid Generic Names in Zoology (as no. 1769) by Opinion 747 (ICZN 1965).
Rynchium Sturm 1829: 12 . Unjustified emendation of Rhynchium Spinola, placed on Official Index of Rejected and Invalid Generic Names in Zoology (as no. 1770) by Opinion 747 (ICZN 1965).
Rhygchium [!] de Saussure 1853: xxxi, 276. Placed on Official Index of Rejected and Invalid Generic Names in Zoology (as no. 1771) by Opinion 747 (ICZN 1965).
Eurrhynchium Dalla Torre 1904: 33, name for division II of Rhynchium Spinola in de Saussure 1852: 105 .
Type species: Vespa oculata Fabricius 1781, by subsequent designation of van der Vecht & Carpenter 1990: 23.