Ptilonyssus hirsti (Castro & Periera, 1947)

Fig 99 (a). Ptilonyssus hirsti female dorsal habitus.

Fig 99 (b). Ptilonyssus hirsti female dorsum.

Fig 99 (c). Ptilonyssus hirsti female venter.

Ptilonyssus (=Neonyssus) hirsti (Castro & Periera, 1947)

North American host records:
Passeridae
Passer domesticus, House Sparrow (Porter and Strandtmann 1952; Fain and Hyland 1963; Wilson 1964; Pence 1975; Knee et al. 2008)

Diagnostic characteristics:
- two dorsal shields, podosomal and fused opisthosomal and pygidial shields
- posterior margin of podosomal shield is straight
- opisthosomal shield is twice as long as wide
- opisthosomal shield without lateral excavation
- posterior margin of opisthosomal shield is rounded, occasionally it is invaginated forming an inverted V indent
- anterior margin of opisthosomal shield is straight
- st1 st2 and st3 off the sternal shield
- subapical ventral setal pair on tarsus IV are relatively long filamentous spikes with long flexible tips
- six pairs of ventral opisthosomal setae
- four pairs of mesolateral setae
- mesolateral setae all approximately equal in length, there are not two pairs of setae that are twice as long as another setal pair
- minute subposterior pair of dorsal podosomal setae are as long or almost as long as the longest mesolateral setae
- paranal setae posterior to anal opening, paranal and postanal setae are unequal in length

References:
Castro, M.P., and C. Pereira. 1947. Acaros nasicolas (Parasitiformes: Rhinonyssidae) do pardal
        – “Passer domesticus L.”. Arquivos do Instituto Biologico, 18: 125-133.
Fain, A., and Hyland, K.E. 1963. Deus nouveaux rhinonyssides communs aux faunes d'Amerique
        du Nord et de Belgique. Bulletin and Annales de la Societe Royale d'Entomologie
        de Belgique, 99: 375-386.
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.
Porter, J.C. and Strandtmann, R.W. 1952. Nasal mites of the English Sparrow. The
        Texas Journal of Science, 4: 393-399.
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.
Wilson, N. 1964. New records and descriptions of Rhinonyssidae, mostly
        from New Guinea (Acarina: Mesostigmata). Pacific Insects, 6: 357-388.

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