Capsus artemisiae Becker, 1864: 487. LT (Schuh et al., 1995: 386): male, Russia (ST), Sarepta [= Krasnoarmeysk nr Volgograd]; ZMAS.
Plagiognathus solani Matsumura, 1917: 432 (syn. Miyamoto, 1977c: 233, with albipennis sensu Wagner; Schuh et al., 1995: 386). LT (Yasunaga et al., 1996: 93): female, Russia (FE), Sakhalin Is., Otani [= Sokol]; EIHU.
Plagiognathus diversus Van Duzee, 1917b: 283 (syn. Schuh, 2001: 251). HT: male, USA, California, Alameda County, Niles Canyon; CASC.
Plagiongnathus diversus var. cruralis Van Duzee, 1917b: 283. HT: male, USA, California, Tunnel Road nr Oakland; CASC.
Plagiognathus diversus var. pluto Van Duzee, 1917b: 284. HT: male, USA, California, Santa Cruz County; CASC.
Plagiognathus albipennis var. obscura J. Sahlberg, 1920: 167 (junior primary homonym of Plagiognathus obscurus Uhler, 1872; syn. Schuh et al., 1995: 386). ST(S): Finland, Willmanstrand; UZMT?
Plagiognathus albipennis (non Fallén, 1829): Wagner, 1941d: 248. Misidentification (see Schuh et al., 1995: 386).
Plagiognathus (Poliopterus) gracilis Wagner, 1956k: 74 (syn. Schuh et al., 1995: 386). HT: male, Austria, nr Wien, Bisamberg; ZMUH (see Aukema, 1999: 10).
Plagiognathus (Poliopterus) servadeii Wagner, 1972d: 112 (syn. Faraci & Kerzhner, 1997: 236). HT: male, Italy, Piemonte, Meana Susa; ZMUH.