Ornithonyssus sylviarum (Canestrini & Fanzago) —northern fowl mite

Ex Iridoprocne bicolor (tree swallow) nest: 34F, 1N, GSMNP, no other data, W. K. Reeves, L­3051.

Despite its vernacular name, this blood­feeding mite parasitizes many species of wild birds (Garvin et al. 2004) and some mammals (Whitaker & Wilson 1974).

Ornithonyssus wernecki (Fonseca)

Ex Didelphis virginiana (Virginia opossum): 1F, NC, Swain Co., US 441, 1 Feb. 2006, W. K. Reeves. Ornithonyssus wernecki mainly parasitizes the Virginia opossum in North America (Whitaker & Wilson 1974).