Fig 98 (a).Ptilonyssus tyrannus female dorsal habitus.

Fig 98 (b).Ptilonyssus tyrannus female dorsum.

Fig 98 (c). Ptilonyssus tyrannus female venter.

Ptilonyssus (=Tyranninyssus) tyrannus (Brooks and Strandtmann, 1960)

North American host records:
Tyrannidae:
Contopus borealis, Olive-sided Flycatcher(Brooks and Strandtmann 1969; Hyland and Moorhouse 1970; Pence 1975)
Contopus sordidulus, Western Wood-Peewee (Brooks and Strandtmann 1969; Hyland and Moorhouse 1970; Pence 1975; Knee et al. 2008)
Contopus virens, Eastern Wood-Peewee (Pence 1972, 1975)
Empidonax alnorum, Alder Flycatcher (Hyland and Moorhouse 1970; Pence 1975)
Empidonax flaviventris, Yellow-bellied Flycatcher (Hyland and Moorhouse 1970; Pence 1975)
Empidonax minimus, Least Flycatcher (Brooks and Strandtmann 1969; Hyland and Moorhouse 1970; Pence 1975; Spicer 1987)
Empidonax traillii, Willow Flycatcher(Hyland and Moorhouse 1970; Pence 1975)
Empidonax virescens, Acadian Flycatcher (Pence 1972, 1975)
Sayornis phoebe, Eastern Phoebe (Pence 1972, 1975; Knee et al. 2008)
Sayornis saya, Say’s Phoebe (Brooks and Strandtmann 1969; Hyland and Moorhouse 1970; Pence 1975)
Tyrannus melancholicus, Tropical Kingbird (Hyland and Moorhouse 1970)

Diagnostic characteristics:
– two dorsal shields, podosomal and fused opisthosomal and pygidial shields- posterior margin of podosomal shield with a medial lobe and lacking lateral lobes
– 
opisthosomal shieldis twice as long as wide
– lateral excavation of the posterior portion of the opisthosomal shield
– posterior margin of opisthosomal shield is rounded
– 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 strong spikes with a rounded terminus
– six pairs of ventral opisthosomal setae
– three 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
– dorsum of genu III with oblique row of four stout spine setae close together
– paranal setae anterior to anal opening, paranal and postanal setae are unequal in length

References:
Brooks, D.L., and Strandtmann, R.W. 1960. The nasal mites (Acarina) of some West Texas
        flycatchers (Tyrannidae). Journal of Parasitology, 46: 418-432.Hyland, K.E., and Moorhouse, A. 1970. Nasal mites from Mexican birds. I. Rhinonyssidae
        (Mesostigmata) from the host family Tyrannidae. Acarologia, 12: 43-58.
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.
Pence, D.B. 1972. The nasal mites of birds from Louisiana III. The genus Ptilonyssus
        (Dermanyssidae: Rhinonyssinae) with description of a new species. Journal of
        Parasitology, 58: 790-795.
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.

back