The specimens of this new species of mite were collected by Mr Gordon Thompson, formerly curator of the Science Museum of the Institute of Jamaica, from the legs of a specimen of the golden thrush, Turdus aurantiacus Gmelin, taken at Morant Bay Road, 14½ miles east of Kingston, 14 January 1947. The bird was a male, and in a letter dated 11 March 1947 he says the mites were ‘extracted from a “growth” after macerating it for a while in caustic potash. This is the only “growth” of its kind I have found among approximately two hundred birds examined in Jamaica. The bird seemed quite healthy.’ I have to thank Mr Thompson for his kindness in handing me this, together with other acarine material, for study and determination.