Mesostigmata, G.Canestrini, 1891

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: 12

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Acari: Mesostigmata   : Macrochelidae  

Macrochelid mites are predators of small invertebrates, and many species are fimicolous and phoretic on dung-beetles, so it is not surprising that they are commonly found in association with small mammals and their nests ( Krantz and Whitaker 1988). Several specimens were collected from G. lutescens   , O. leucogaster   , and Pm. maniculatus   , but without a good series of specimens, we hesitate to attempt species identifications. All three mites are different species and they all clearly fit within the genus Macrocheles   . Using Krantz and Whitaker (1988), the macrochelids associated with O. leucogaster   key to Macrocheles mammifer Berlese   , but our specimens are smaller (HWML 101724, 101725, and 92029); those on Pm. maniculatus   (HWML 101823 and 101824) are near Macrocheles nemerdarius Krantz and Whitaker   , but smaller in body size. Only a few specimens (larger than those on the neotomines) were collected from G. lutescens   (HWML 101738 and 92015).