New ascid mites of the genera Rhinoseius Baker and Yunker, 1964, and Lasioseius Berlese, 1923 (Acari: Gamasida: Ascidae) associated with hummingbirds or hummingbird-pollinated flowers in southwestern Colombia. Journal of Natural History, 25(2) 1991: 481-497. 493 [Zoological Record Volume 127]