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Interactive HTML-based Dichotomous Key to Female Rhinonyssidae
(Mesostigmata) from Birds in Canada

CJAI 09 January 25, 2010
doi: 10.3752/cjai.2010.09

Wayne Knee*, and Heather Proctor**

* Carleton University, 1125 Colonel By Drive, Department of Biology, 209 Nesbitt Bldg, Ottawa, ON, K1S 5B6. wknee@connect.carleton.ca **University of Alberta, Department of Biological Sciences, CW 405 Biological Sciences Building, Edmonton AB, T6G 2E9. hproctor@ualberta.ca

Key to females of Rhinoecius species known from Canada:

1. Subposterior pair of dorsal podosomal setae set on posterior margin of podosomal shield and very long (at least 70 µm long). Host species Aegolius funereus and A. acadicus Rhinoecius aegolii
- Subposterior pair of dorsal podosomal setae on or off posterior margin of podosomal shield and short (less than 70 µm long) 2
2. Sternal shield highly reduced, all sternal setae off shield. Host species Strix nebulosa Rhinoecius cooremani
- Sternal shield more complete, st1 and st2 on shield and st3 off shield 3
3. Postanal seta absent. Host species Asio otus Rhinoecius brikinboricus
- Postanal seta present 4
4. Posterior margin of sternal shield with posteromedial projection. Host species Bubo virginianus Rhinoecius grandis
- Posterior margin of sternal shield straight without projection 5
5. Anterior margin of sternal shield does not extend far beyond st1. Host species Asio flammeus Rhinoecius alifanovi
- Anterior margin of sternal shield extends anteriorly beyond st1. Host species Nyctea scandiaca Rhinoecius nycteae