New and little known feather mites (Acariformes: Astigmata) analysed with low-temperature scanning electron microscopy.

Feather mites (Acari: Astigmata) were analysed with low-temperature scanning electron microscopy, including the description of three new species:Plicatalloptes atrichogynussp. nov. (Analgoidea: Alloptidae) from the Neotropical cormorantPhalacrocorax brasilianus(Gmelin) (Pelecaniformes: Phalacrocoracidae),Metapterodectes saturninussp. nov. (Analgoidea; Proctophyllodidae) from the chalk-browed mockingbirdMimus saturninus(Lichtenstein) (Passeriformes: Mimidae), andNeumannella crypturellasp. nov. (Analgoidea: Dermoglyphidae) from the small-billed tinamouCrypturellus parvirostris(Wagler) (Tinamiformes: Tinamidae). In addition, two previously known species are analysed,Oustaletia pegasusTrouessart, 1855 (Pterolichoidea: Vexillariidae) from the bushy-crested hornbillAnorrhinus galeritus(Temminck) (Bucerotiformes: Bucerotidae), andOpisthocomacarus umbellifer(Trouessart, 1899) (Pterolichoidea: Pterolichidae) from the hoatzinOpisthocomus hoazin(Müller) (Opisthocomiformes: Opisthocomidae). The latter two mite species display a rich variety of setal structures.Alloptes umbrettaeGaud, 1960 (Analgoidea: Alloptidae), known fromScopus umbrettaGmelin (Pelecaniformes: Scopidae), is transferred from the genusAlloptesCanestrini toPlicatalloptesDubinin and given a new valid name,Plicatalloptes umbrettae(Gaud, 1960)comb. nov. http://zoobank.org/urn:lsid:zoobank.org:pub:5866FF00-1206-4551-9544-8A002ADF7626 [ABSTRACT FROM PUBLISHER]