Gerris annulatus Wolff, 1804: 162. STS: EU; lost.
Dicyphus (Brachyceraea) ononidis Wagner, 1951h: 24, 35 (as Brachyceraea ononidis) (downgraded by Tamanini, 1956a: 18; syn. Günther & Schuster, 1990: 370). HT (see also Tamanini, 1956a: 18): male, Italy, Liguria, Arenzano; ZMUH.