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Citation for Study 1125

About Citation title: "A penguin-chewing louse (Insecta: Phthiraptera) phylogeny derived from morphology.".
About This study was previously identified under the legacy study ID S1031 (Status: Published).


Banks J., & Paterson A. 2004. A penguin-chewing louse (Insecta: Phthiraptera) phylogeny derived from morphology. Invertebrate Systematics, 18(1): 89-100.


  • Banks J.
  • Paterson A.


Penguins are parasitised by 15 species of lice in the genera Austrogoniodes and Nesiotinus and present an opportunity to analyse phylogenetic relationships of two complete genera of chewing lice parasitising a monophyletic host group. Taxonomy of the penguin lice has been revised several times including the erection of the genus, Cesareus, to contain some of the penguin chewing louse species. Additionally, other groups of species within Austrogoniodes have been proposed. We constructed a phylogeny for all the chewing lice parasitising penguins from 46 parsimony informative morphological characters and found support for two groups within Austrogoniodes but little support for the Cesareus genus. Austrogoniodes metoecus, the only Austrogoniodes species parasitising a bird other than a penguin, was basal in the phylogeny which suggested that if A. metoecus did originate from a louse species parasitising penguins, the host switching event was unlikely to have been recent. A superficial comparison of louse and penguin phylogenies identified some potential instances of cospeciation. However, a full analysis of cophylogenetic relationships between penguins and their lice awaits the publication of a better resolved penguin phylogeny.


Austrogoniodes, Cesareus, cladistic, co-evolution, co-phylogeny, lice, Nesiotinus

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