Mammalia - Rodentia - Cricetidae

Alternative combination: Microtus parvulus

Belongs to Pitymys according to C. A. Repenning 1983

Sister taxa: Microtus agrestis, Microtus arvalis, Microtus australis, Microtus brecciensis, Microtus bucharicus, Microtus californicus, Microtus chrotorrhinus, Microtus drummondi, Microtus duodecimcostatus, Microtus epimticeps, Microtus guatemalensis, Microtus guentheri, Microtus guildayi, Microtus hibbardi, Microtus irene, Microtus kikuchii, Microtus leucurus, Microtus llanensis, Microtus longicaudus, Microtus mandarinus, Microtus meadensis, Microtus mexicanus, Microtus middendorffi, Microtus miurus, Microtus montanus, Microtus morlani, Microtus oaxacensis, Microtus ochrogaster, Microtus oeconomus, Microtus paroperarius, Microtus pennsylvanicus, Microtus pinetorum, Microtus quasiater, Microtus richardsoni, Microtus rossiaemeridionalis, Microtus umbrosus, Microtus xanthognathus, Pitymys aratai, Pitymys cumberlandensis, Pitymys mcnowni, Pitymys nemoralis

Ecology: ground dwelling herbivore