Fig 95 (a). Ptilonyssus plesiotypicus female dorsal habitus.

Fig 95 (b). Ptilonyssus plesiotypicus female dorsum.

Fig 95 (c). Ptilonyssus plesiotypicus female venter.

North American host records:
Fringillidae:
Carpodacus purpureus, Purple Finch (Knee et al. 2008)

Diagnostic characteristics:
– two dorsal shields, podosomal and fused opisthosomal and pygidial shields- posterior margin of podosomal shield is slightly trilobed
– opisthosomal shield is 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 strong spikes
– seven or more 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 longer than mesolateral setae
– ventral hypostomal setae large distally inflated bulbs
– anal setae constricted proximally (within 1/3 of length from base) forming a long filamentous tip
– paranal setae level with anal opening, paranal and postanal setae are unequal in length

References:
Knee, W. 2008. Five new species of Rhinonyssidae (Mesostigmata) and one new species of Dermanyssus
        (Mesostigmata: Dermanyssidae) from birds of Alberta and Manitoba, Canada. Journal of Parasitology, 94: 348-374.
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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