Pediculus lari O. Fabricius, 1780: 219.
Docophorus gonothorax Giebel, 1874: 450.
Philopterus lari O. Fabricius, 1780 [sic]; Harrison 1916: 97 (as junior synonym of Philopterus gonothorax Giebel, 1871 [sic]).
Philopterus gonothorax Giebel, 1871 [sic]; Harrison 1937: 21.
Saemundssonia gonothorax Giebel, 1871 [sic]; Timmermann 1949: 4, figs 1–3.
Saemundssonia gonothorax (Giebel, 1874); Hopkins & Clay 1952: 331.
Saemundssonia lari (O. Fabricius, 1780); Hopkins & Clay 1952: 332.
Saemundssonia lari lari (O. Fabricius, 1780); Clay & Hopkins 1954: 249, figs 37–39.
Saemundssonia lari (O. Fabricius, 1780) s. l.; Pilgrim & Palma 1982: 22.
Saemundssonia (Saemundssonia) lari (O. Fabricius, 1780); Price et al. 2003: 234.
Saemundssonia lari (O. Fabricius, 1780); González-Acuña et al. 2006a: 189.
Saemundssonia lari (O. Fabricius, 1780); González-Acuña et al. 2011: 301.
Saemundssonia lari; Beltrán-Saavedra 2015: 39.
Saemundssonia lari (O. Fabricius, 1780); González-Acuña et al. 2020b: 5, fig. 2d.
Saemundssonia (Saemundssonia) lari (O. Fabricius, 1780) sensu lato; Palma 2017: 201.
Neotype ♂ in NHML (see Clay & Hopkins 1954: 249, pl. 11: fig. 5).
Type host: Larus hyperboreus Gunnerus, 1767.
Chilean hosts: Larus dominicanus Lichtenstein, 1823; Larus pipixcan Wagler, 1831.
Other hosts: Other 31 species of Larus (see Price et al. 2003: 234); Gabianus pacificus (Latham, 1802); Pagophila eburnea (Phipps, 1774); Rissa brevirostris (Bruch, 1853); Rissa tridactyla (Linnaeus, 1758); Xema sabini (Sabine, 1819).
Chilean localities: Santo Domingo (Valparaíso): Region V; Talcahuano: Region VIII; Río Lluta: Region XV.
Geographic distribution: Cosmopolitan.
Chilean references: González-Acuña et al. (2006a); González-Acuña et al. (2011); Beltrán-Saavedra (2015); González-Acuña et al. (2020b).
Other significant references: Harrison (1937); Clay & Hopkins (1954); Timmermann (1957a: 42, figs 9, 12); Clay & Moreby (1967: 165, 169, figs 163–167); Pilgrim & Palma (1982); Palma (1996: 222); Price et al. (2003); Martín-Mateo (2009: 117, fig. 29); Palma & Peck (2013: 60); Palma (2010: 409); (Palma 2012: 44, fig. 14); Palma (2017).
Remarks: Saemundssonia (Saemundssonia) lari is a morphologically variable “head & neck” louse frequently collected from many species of gulls. Palma (2017: 202) discussed the sensu lato status of Saemundssonia (Saemundssonia) lari.