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Published online by Cambridge University Press: 10 July 2009
The types of the two species and of the variety described below are in the British Museum (Natural History).
* O.intertropica, Walk., is a widely distributed species which, in the Sandwich Is. at any rate, is parasitic on the short-eared owl: it has not been recorded from Africa, but, besides occurring in the Sandwich Is., is also found in Mexico and Brazil. As stated elsewhere by the present writer (cf. Ann. and Mag. Nat. Hist., Ser. 7, Vol. xii, p. 264, 1903)Google Scholar, Olfersia acarta, Speiser, is apparently a synonym of this species.