Fig 77 (a). Rhinonyssus rhinolethrum female dorsal habitus.

Fig 77 (b). Rhinonyssus rhinolethrum female dorsum.

Fig 77 (c). Rhinonyssus rhinolethrum female venter.

Rhinonyssus (=Sternostomum) rhinolethrum (Trouessart, 1895)

North American host records:
Anatidae:
Aix sponsa, Wood Duck (Pence 1972, 1975; Knee et al. 2008)
Anas acuta, Northern Pintail (Strandtmann 1951, 1956; Mitchell and Rhodes 1960; Pence 1975)
Anas americana, American Wigeon (Strandtmann 1951, 1956; Mitchell and Rhodes 1960; Wilson 1968; Pence 1975)
Anas crecca carolinensis, Common Teal (Strandtmann 1951, 1956; Mitchell and Rhodes 1960; Wilson 1968; Pence 1975)
Anas clypeata, Northern Shoveler (Strandtmann 1951, 1956; Mitchell and Rhodes 1960; Wilson 1968; Pence 1975)
Anas discors, Blue-winged Teal (Mitchell and Rhodes 1960; Pence 1972, 1975)
Anas platyrhynchos, Mallard (Strandtmann 1951, 1956; Mitchell and Rhodes 1960; Pence 1975; Knee et al. 2008)
Anas strepera, Gadwall (Strandtmann 1951, 1956; Pence 1975)
Anser caerulescens, Snow Goose (Mitchell and Rhodes 1960; Pence 1975)
Anser rossii, Ross’ Goose (Mitchell and Rhodes 1960; Pence 1975; Knee et al. 2008)
Aythya affinis, Lesser Scaup (Strandtmann 1951, 1956; Mitchell and Rhodes 1960; Pence 1975; Spicer 1987)
Aythya valisineria, Canvasback (Mitchell and Rhodes 1960; Pence 1975)
Branta canadensis, Canada Goose (Strandtmann 1951, 1956; Mitchell and Rhodes 1960; Pence 1975; Knee et al. 2008)
Cygnus columbianus, Tundra Swan(Strandtmann 1956; Knee et al. 2008)
Melanitta fusca deglandi, White-winged Scoter (Strandtmann 1956; Pence 1975)
Mergus merganser, Common Merganser (Strandtmann 1956; Wilson 1964)
Mergus serrator, Red-breasted Merganser (Strandtmann 1956; Mitchell and Rhodes 1960; Pence 1975)

Rallidae:
Fulica americana, American Coot (Pence 1972, 1975)

Diagnostic characteristics:
– podosomal shield entire, not medially eroded
– nine or more pairs of ventral opisthosomal setae

References:
Knee, W., Proctor, H., and Galloway, T. 2008. Survey of nasal mites (Rhinonyssidae, Ereynetidae, and
        Turbinoptidae) associated with birds in Alberta and Manitoba, Canada. Canadian Entomologist,
        140
: 364-379.Mitchell, R.W., and Rhodes, W.L. 1960. New host records for the mesostigmatid
        nasal mite Rhinonyssus rhinonlethrum (Acarina: Rhinonyssidae). The
        Southwestern Naturalist, 5: 107-108.
Pence, D.B. 1972. The nasal mite of birds from Louisiana. I. Dermanyssids
        (Rhinonyssinae) from shore and marsh birds. Journal of Parasitology, 58: 153-168.
Pence, D.B. 1975. Keys, species and host list, and bibliography for nasal mites of
        North American birds (Acarina: Rhinonyssinae, Turbinoptinae,
        Speleognathinae, and Cytoditidae). Special Publications of the Museum Texas
        Tech University, 8: 1-148.
Spicer, G.S. 1987. Prevalence and host-parasite list of some nasal mites from birds
        (Acarina: Rhinonyssidae, Speleognathidae). Journal of Parasitology, 73: 259-264.
Strandtmann, R.W. 1951. The mesostigmatic nasal mites of birds. II. New and
        poorly known species of Rhinonyssidae. Journal of Parasitology, 37: 129-140.
Strandtmann, R.W. 1956. The mesostigmatic nasal mites of birds. IV. The species
        and hosts of the genus Rhinonyssus. Proceedings of the Entomological Society of Washington, 58: 129-142.
Trouessart, E.L. 1895. Note sur un acarien parasite des fosses nasals de l’oie domestique (Sternostomum
        rhinolethrum
, n. sp.). Revue des Sciences Naturelles apliquees, Bulletin de la Societe Nationale
        d’Acclimation, 42: 392-394.
Wilson, N. 1964. New records and descriptions of Rhinonyssidae, mostly
        from New Guinea (Acarina: Mesostigmata). Pacific Insects, 6: 357-388.
Wilson, N. 1968. Records of nasal mites (Mesostigmata: Rhinonyssidae) from New
        Guinea, Philippines and United States. Journal of Medical Entomology, 5: 211-223.

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