Ornithonyssus bacoti (Hirst)

Howell, Lindsey, Jelden, Katelyn, Rácz, Elizabeth, Gardner, Scott L. & Gettinger, Donald, 2016, Arthropods infesting small mammals (Insectivora and Rodentia) near Cedar Point Biological Station in southwestern Nebraska, Insecta Mundi 2016 (478), pp. 1-16: 11

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Ornithonyssus bacoti (Hirst)


Ornithonyssus bacoti (Hirst)  

Type host: unknown.

Deposition, host records, and locality: HWML 101659 View Materials , M. ochrogaster   /Station Grounds 2012   ; HWML 101665 View Materials and 101666, M. ochrogaster   /Station Grounds 2012   ; HWML 101668 View Materials , M. ochrogaster   / Station Grounds 2012   ; HWML 101673 View Materials , Pm. maniculatus   /Station Grounds 2012   ; HWML 91988 View Materials , Pm. leucopus   /Grama Grass 2012   ; HWML 101675 View Materials , C. hispidus   /Grama Grass 2012   ; HWML 101801 View Materials , Pm. maniculatus   /Breen’s Flyway 2013   ; HWML 101809 View Materials , Z. hudsonius   /Breen’s Flyway 2013   ; HWML 101815 View Materials , M. ochrogaster   /Station Grounds 2013   ; HWML 101818 View Materials , R. megalotis   /Breen’s Flyway 2013   ; HWML 101820 View Materials and 101821, R. megalotis   /Breen’s Flyway 2013   .

Remarks: Ornithonyssus bacoti   is primarily an ectoparasite of introduced rats ( Rattus   ), and their nests ( Radovsky 2010). It is unclear about whether this is truly an ectoparasitic mite that is capable of infesting a wide range of native small mammals, or a complex of morphologically similar species with host specific habits. However, the present belief is that O. bacoti   commonly abandons its primary host to infest man and his domestic and/or laboratory animals ( Cole et al. 2005). It is a blood-feeder and its bite can cause skin dermatitis, with the potential for transmission of zoonoses to man and his domestic animals ( Easterbrook et al. 2008). For this reason, it is important to note its strong association with domestic Rattus   . In discussing the broad host distribution of O. bacoti, Radovsky (2010)   notes the probability that it has spread “from post-Columbian human transport of host animals.”