Linognathus weisseri n. sp. (Phthiraptera: Linognathidae) of impalas, Aepygeros melampus: description and biology

Publication Type  Journal Article
Year of Publication  2004
Authors  Durden, Lance A.; Horak, Ivan G.
Journal Title  Onderstepoort Journal of Veterinary Research
Volume  71
Issue  1
Pages  59-66
Accession Number  43791
Key Words  Aepyceros melampus; impalas ; lice ; Linognathus ; weisseri ; Anoplura ; atax
Abstract  The adult male and female and first instar nymph of the sucking louse Linognathus weisseri n. sp. are described. This louse was collected from impalas, Aepyceros melampus, at three localities in Limpopo Province, and at three in Mpumalanga Province, South Africa. Although it usually accounted for only a small proportion of the total louse burden, its overall prevalence exceeded 27 %. Its prevalence on adult male impalas (9 %) was significantly lower (P = 0.004) than that on adult females (39 %), but did not differ among age classes. However, the intensity of L. weisseri infestation was higher on lambs than on yearlings and adults, and peaked on impalas in late winter to early summer. Five species of lice are now known to parasitize impalas and a key for distinguishing adults of these species is included.
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