Ptilonyssus angrensis (Castro, 1948)
Fig 93 (a). Ptilonyssus angrensis female dorsal habitus.
Fig 93 (b). Ptilonyssus angrensis female dorsum.
Fig 93 (c). Ptilonyssus angrensis female venter.
Ptilonyssus
(=Rhinonyssus) angrensis (Castro, 1948)
North American host records:
Hirundinidae:
Hirundo fulva,
Cave Swallow (Pence 1975)
Hirundo pyrrhonota,
Cliff Swallow
(Pence 1975)
Progne subis,
Purple Martin
(Pence 1972, 1975; Knee et al. 2008)
Tachycineta bicolor,
Tree Swallow
(Pence 1975)
Diagnostic characteristics:
- one dorsal shield, podosomal shield
- sternal shield absent
- posterior margin of podosomal shield with a medial lobe and lacking lateral lobes
- peritreme absent
- subapical ventral setal pair on tarsus IV are relatively short spikes proximally
inflated
- seven or more pairs of ventral opisthosomal setae
- two 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
- cribrum absent or unnoticeable
- paranal setae level with anal opening, paranal and postanal setae are equal or almost
equal in length
Note:
- Ptilonyssus species are typically characterized as having
peritremes,
the exceptions are
P. angrensis, P. vireonis, and P. hoseini (Fain and Aitken,
1967) all of which
lack
peritremes. These three species are still considered to be Ptilonyssus
species because
of the ventroterminal placement of the anus, and the
terminal placement of the gnathosoma.
References:
Castro, M.P. 1948. Reestruturacao generica da familia Rhinonyssidae Vitzthum
1935 (Acari:
Mesostigmata: Gamasides) e descraicao
de algumas especies novas. Arquivos do Instituto
Biologico, 18: 253-284.
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.