Akodon spegazzinii is found in northwestern Argentina, in the provinces of Salta, Catamarca, Tucumán, La Rioja, and Mendoza, at altitudes of . Although its main distribution is in the northern provinces of Salta, Tucumán, and Catamarca, there are also scattered records from the more southern provinces of La Rioja and Mendoza, where it is likely restricted to patches of wet habitat. "Akodon alterus" has been reported from Jujuy, but this record was likely based on misidentified specimens of "A. boliviensis", and records of "Akodon spegazzinii" from Jujuy were based on misidentified "A. sylvanus". "Akodon spegazzinii" is known from a paleontological site in
Formosa Expedition merchant trade, rear-Admiral Bell was killed along with all but three of the men after their vessel was overturned. Formosa Expedition The Formosa Expedition, or the Taiwan Expedition of 1867 was a punitive expedition launched by the United States against Formosa. The expedition was undertaken in retaliation for the Rover incident, in which the "Rover", an American bark, had been wrecked and its crew massacred by aboriginal Paiwan warriors in March 1867. A United States Navy and Marine company landed in southern Formosa and attempted to advance into the native village. The natives deployed a significant amount of guerrilla warfare,