Gyropus lineatus Neumann, 1912 b

Gyropus lineatus Neumann 1912b: 218, fig. 4 (female habitus, dorsal view), fig. 5 (sternal plates of female). Type locality: Brazil, Pará. Type host: Kerodon moco (= Kerodon rupestris). Typology: “D’après une centaine d’individues ɗ et Ψ, recueillis, en même temps que G. porcelli perfoliatus, sur le Moco ( Kerodon moco Fr. Cuv.), au Para (Brésil), par Göldi (Muséum de Paris)” (see Neumann 1912b: 220), syntypes held by ENVT.

Harrison 1916: 31 (checklist). Werneck 1936a: 424 (male and female redescriptions), fig. 40 (female habitus, dorso-ventral view), fig. 41 (male habitus, dorso-ventral view), fig. 42 (female head, dorso-ventral view), fig. 43 (sternal plates), fig. 44 (female terminalia, ventral view), fig. 45 (male genitalia, dorsal view). Werneck 1948: 54 (citation). Hopkins and Clay 1952: 161 (checklist). Emerson and Price 1981: 40 (host-parasite checklist). Guitton et al. 1986: 233 (supposed new host record and geographical data). Price et al. 2003: 77 (checklist). Bittencourt and Rocha 2002: 422 (supposed new host record and spatial distribution on host) Bittencourt and Rocha 2003: 794 (supposed mean abundance data).

Tetragyropus lineatus, Ewing 1924: 21 (redescription and key to species included in Tetragyropus). Werneck 1934a: 176 (synoxenism with Monothoracius penidoi). Werneck 1934b: 281 (citation).

Distribution. BRAZIL (Ceará, Minas Gerais, Pernambuco).

Hosts. Kerodon rupestris Wied, + Microcavia australis (Caviidae), + Proechimys mincae, + P. iheringi, + Proechimys sp. ( Echimyidae).

Remarks. The three species of Echimyidae cited as a host to G. lineatus are clearly either result of a misidentification of the lice (Guitton et al. 1986; Bittencourt and Rocha 2002, 2003) or contamination among museum skins (Ewing 1924). This is one of the only two species named in Gyropus found exclusively on Caviidae . The finding of an immature on a skin of Microcavia australis (Ewing 1924: 22) needs further investigation.