Eine neue ausgestorbene vogel-Ischnozere von neuseeland, Huiacola extinctus (Insecta, Phthiraptera)

The new Ischnoceran genus and species Huiacola extinctus including its egg and second and third instars is described. The feather louse was an ectoparasite of the extinct bird Heteralocha acutirostris (Gould) on New Zealand. The new genus belongs to the Rallicolinae (Rallicola-complex). Perhaps it is one of the oldest Ischnocera parasitizing a passeriform host. For H. extinctus the huiacolid ecotype is errected and characterized. Three of the larvae had feather mites in their proventricla. In connection with parasito-phylogenetic rules, some ideas on Huiacola and its host are discussed. Besides H. extinctus, hitherto 7 other species of extince feather lice are known.