Gonatocerus californicus Girault, 1911

Gonatocerus californicus Girault, 1911 [96]: 271. Holotype ♀ (USNM), lost. TL: USA, California, Siskiyou Co., no locality specified. Girault, 1929 [428]: 27 (key); Peck, 1951: 412 (catalogue); Burks, 1979: 1025 (catalogue); Huber, 1988, 34 (key), 35 (description); Yoshimoto, 1990: 39 (list, species group placement); De Santis & Fidalgo, 1994: 124 (catalogue) [NT]; Huber & Beardsley, 2000: 52 (key), 56 (distribution) [A]; Huber, 2015a: 30 (list); Rauber et al., 2016: 133 (distribution) 134 (key) [NT].

Lymaenon californicus: Burks, 1958: 63 (generic transfer); Peck, 1963: 22 (catalogue).

Gonatocerus (Gonatocerus) californicus: Triapitsyn et al., 2010: 14 (key), 22 (description, distribution) [NT]; Luft Albarracin & Triapitsyn, 2012: 297 (hosts, percent parasitism, distribution) [NT]; Triapitsyn, 2013b: 212 (key, variation, distribution).

Gonatocerus titillatus Girault, 1917 [336]: 87. Holotype ♀ (USNM). TL: USA, Utah, Salt Lake City. Synonymy under G. utahensis by Huber, 1988: 37. Peck, 1951: 412 (catalogue); Burks, 1979: 1026 (catalogue); Huber, 1988: 37 (synonymy).

Lymaenon titillatus: Burks, 1958: 63 (generic transfer); Peck, 1963: 25 (catalogue).

Gonatocerus utahensis Girault, 1917 [331]: 446. Lectotype ♀ (USNM), designated by Huber,1988: 37. TL: USA, Utah, Salt Lake City. Synonymy by Triapitsyn, 2013b: 212. Girault, 1929 [428]: 23 (key); Peck, 1951: 413 (catalogue); Burks, 1979: 1026 (catalogue); Huber, 1988: 34 (key), 37 (description); Yoshimoto, 1990: 41 (list, species group placement); De Santis & Fidalgo, 1994: 125 (catalogue) [NT].

Lymaenon utahensis: Burks, 1958: 63 (generic transfer); Peck, 1963: 25 (catalogue).

Gonatocerus (Gonatocerus) utahensis: Triapitsyn, 2013b: 212 (synonym under G. californicus, distribution).

Distribution. USA: AZ, CA, FL, IL, TX, UT. Other localities in Huber (1988) of G. utahensis as a separate species are probably incorrect; more likely they are G. rivalis .