Genus Rhynchium Spinola, 1806

Rhynchium Spinola 1806: 84, 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 [= Ves pa oculata Fabricius, 1781], by monotypy (no. 2095 of Official List of Specific Names in Zoology).

Rygchium Spinola, 1806: 84 . 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.

The genus Rhynchium includes slightly more than 20 species and many subspecies, distributed throughout the Old World (van der Vecht & Fischer 1972, Cardale 1985, Carpenter et al. 2010, Nugroho et al. 2012).