title: A new genus and species of Philopteridae (Phthiraptera: Ischnocera) from the trumpeters (Aves: Gruiformes: Psophiidae).
abstract: A new chewing louse genus and species belonging to the Philopteridae, namely, Palmaellus inexpectatus n. gen., n. sp., is described. The new genus is distinguished from the other ischnoceran genera hitherto described by its peculiar characters of the dorsal anterior head plate with 2 postero-lateral projections, pterothorax and abdomen with scarce chaetotaxy, male genitalia with simple mesomere and paramere lacking inner digitiform projection, and the genital region of female with postero-vulvar plates bearing setae. It is a parasite of the trumpeters, an avian family endemic to South America's Amazon Basin.
authors.affiliation: Field Museum of Natural History, Department of Zoology, Chicago, IL 60605, USA. mpvalim@hotmail.com
authors.forename: Michel P
authors.initials: MP
authors.lastname: Valim
authors.forename: Jason D
authors.initials: JD
authors.lastname: Weckstein
mesh_terms: D000818:Animals; D001483:Base Sequence; D001715:Bird Diseases / Q000469:parasitology*; D001717:Birds; D005260:Female; D058326:Ischnocera / Q000033:anatomy & histology / Q000145:classification* / Q000235:genetics; D010373:Lice Infestations / Q000469:parasitology / Q000662:veterinary*; D016013:Likelihood Functions; D008297:Male; D008969:Molecular Sequence Data; D010802:Phylogeny; D016415:Sequence Alignment / Q000662:veterinary