Quadraceps obtusus ( Kellogg & Kuwana, 1902 )

Palma, Ricardo L. & Peck, Stewart B., 2013, <strong> An annotated checklist of parasitic lice (Insecta: Phthiraptera) from the Galápagos Islands </ strong>, Zootaxa 3627 (1), pp. 1-87 : 51

Quadraceps obtusus ( Kellogg & Kuwana, 1902)

Nirmus obtusus ( Kellogg & Kuwana, 1902: 468, pl. 29, fig. 2.

Degeeriella obtusa ( Kellogg & Kuwana, 1902) ; Harrison 1916: 119.

Degeeriella conformis Blagoveshtchensky, 1940: 56 , 84, fig. 14.

Quadraceps conformis ( Blagoveshtchensky, 1940) ; Hopkins & Clay 1952: 310.

Quadraceps obtusus ( Kellogg & Kuwana, 1902) ; Hopkins & Clay 1952: 314.

Koeniginirmus (Koeniginirmus) obtusus ( Kellogg & Kuwana, 1902) ; Złotorzycka 1967: 774.

Quadraceps obtusus ( Kellogg & Kuwana, 1902) ; Palma 1994b: 273.

Holotype ♀ in EMEC ( Palma 1994b: 268).

Type host: Sterna fuscata crissalis (Lawrence, 1872) , in error (see Palma 1994b: 271).

Galápagos host: Heteroscelus incanus (Gmelin, 1789) .

Galápagos locality: Isla Genovesa.

Galápagos references: Palma (1994b: 268; 1995: 219).

Other significant references: Hopkins & Timmermann (1954: text-fig. 10, pl. 2, figs 13–14); Timmermann (1957: 63, fig. 35.6); Złotorzycka (1967: 713, pl. 4, fig. 4); Price et al. (2003: 225).

Material examined: 11 males and 8 females (1 sample, MONZ) .

Remarks: Price et al. (2003: 226) listed Heteroscelus incanus as one of two regular host of this louse species. From the Kellogg Collection, we examined the female holotype of Quadraceps obtusus , which originated from Clipperton Island, not the Galápagos Islands ( Palma 1994b). Both, Kellogg (1908: 27) and Thompson (1939: 120) incorrectly listed this species as from the Galápagos Islands.