| natural vectors of three bovine onchocerca species (nematoda: onchocercidae) and seasonal transmission by three blackfly species (diptera: simuliidae) in central kyushu, japan. | eleven blackfly species were examined in relation to the transmission of bovine onchocerciasis in central kyushu, japan. a total of 19,005 out of 47,746 females captured from june 1989 to june 1990 at two cattle sheds each in oita and kumamoto were dissected for their parities, infections with onchocerca larvae, and intakes of onchocerca microfilariae. overall results showed that simulium bidentatum (shiraki), the predominant species, is a natural vector of the two bovine onchocerca species, i.e ... | 1994 | 8057315 |