Fig 94 (a). Ptilonyssus coccothraustis female dorsal habitus.

Fig 94 (b). Ptilonyssus coccothraustis female dorsum.

Fig 94 (c). Ptilonyssus coccothraustis female venter.

North American host records:
Fringillidae:
Coccothraustes vespertinus, Evening Grosbeak (Knee et al. 2008)

Diagnostic characteristics:
– two dorsal shields, podosomal and fused opisthosomal and pygidial shields- posterior margin of podosomal shield is straight, occasionally a slight medial lobe is present
– opisthosomal shieldis longer than wide, but not twice as long as wide- opisthosomal shield without lateral excavation- posterior margin of opisthosomal shield is rounded
– anterior margin of opisthosomal shield is medially straight with anterolateral projections
– st1 st2 and st3 on the sternal shield
– subapical ventral setal pair on tarsus IV are relatively long, one strong spike and one filamentous spike
– 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
– subposterior pair of dorsal podosomal setae are as long or almost as long as the longest mesolateral setae
– ventral hypostomal setae large distally inflated bulbs
– paranal setae level with anal opening, paranal and postanal setae are unequal in length

References:
Fain, A., and Bafort, J. 1963. Les acariens parasites nasicoles des oiseaux de Belgique. III.
        Nouvelles observations sur les rhinonyssides avec description de cinq especes nouvelles.
        Bulletin and Annales de la Societe Royale d’Entomologie de Belgique, 99: 471-485.
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.

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