Pectinopygus minor ( Ewing, 1924 )

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 : 43

Pectinopygus minor ( Ewing, 1924)

“ Nirmus fuscomarginatus ” Kellogg, 1906: 318 (not Nirmus fuscomarginatus Denny, 1842 ).

Lipeurus potens Kellogg & Kuwana, 1902 ; Kellogg, 1906: 319. In part Pectinopygus minor ; in part Pectinopygus annulatus ( Piaget, 1880) ; in part Pectinopygus sulae ( Rudow, 1869) ; in part Pectinopygus gracilicornis gracilicornis ( Piaget, 1880) .

“ Lipeurus helleri ” Kellogg, 1906: 319 (not Lipeurus helleri Kellogg & Kuwana, 1902 ). In part Pectinopygus minor ; in part Quadraceps birostris ( Giebel, 1874) ; in part Quadraceps separatus ( Kellogg & Kuwana, 1902) .

Esthiopterum potens var. minor Ewing, 1924: 84 .

Pectinopygus (Pectinopygus) minor ( Ewing, 1924) ; Thompson 1939: 211.

Pectinopygus minor ( Ewing, 1924) ; Hopkins & Clay 1952: 270.

Pectinopygus annulatus ( Piaget, 1880) ; Clay in Linsley & Usinger 1966: 130. In part Pectinopygus minor ; in part Pectinopygus annulatus ( Piaget, 1880) .

Pectinopygus minor ( Ewing, 1924) ; Price et al. 2003: 208.

Holotype ♂ in USNM.

Type host: Sula nebouxii excisa Todd, 1948 .

Galápagos host: Sula nebouxii excisa Todd, 1948 .

Galápagos localities: Isla Seymour; Isla Baltra; Isla Rábida; Islote Corona del Diablo (near Isla Floreana); Isla Española.

Galápagos references: Kellogg (1906); Kellogg (1908: 24, 40, 43); Ewing (1924); Thompson (1939); Linsley & Usinger (1966).

Other significant reference: Price et al. (2003).

Material examined: 46 males, 22 females and 122 nymphs (12 samples, EMEC, MONZ) .

Remarks: At present, this louse species and its host are endemic to the Galápagos Islands, although the population of Sula nebouxii nebouxii Milne-Edwards, 1882 , extending from the coast of California to Perú, may also harbour Pectinopygus minor . From the Kellogg Collection, we examined many specimens labelled and reported by Kellogg (1906: 319) as “ Lipeurus potens ” from several host species, and have identified them as four species of Pectinopygus , as listed in the synonymy above. Also, we examined two other specimens: a female labelled and reported by Kellogg (1906: 318) as “ Nirmus fuscomarginatus ” from Nesomimus parvulus and a male labelled and reported by Kellogg (1906: 319) as “ Lipeurus helleri ” from Sula nebouxii , and have identified them as Pectinopygus minor .