In June 1961 JWM examined a case of knemidokoptic mange* in a Chaffinch Fringilla coelebs from Somerset in which the causative mite was provisionally identified as Knemidokoptes mutatis (Macdonald 1962); since then, however, further work by Professor A. Fain in Antwerp has shown this species to be restricted to the Galliformes. In Chaffinches, Neocnemidocoptes passeris (FRITSCH, 1962) oc

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