Sylvilagus insonus Nelson, 1904 . Proc. Biol. Soc. Washington, 17:103.

TYPE LOCALITY: "Omilteme, Guerrero," [Mexico] .

DISTRIBUTION: Appears restricted to Sierra Madre del Sur, C Guerrero (Mexico) between 2300-5280 ft. elevation.

STATUS: IUCN - Endangered; known from fewer than 10 records.

SYNONYMS: Monotypic.

COMMENTS: Subgenus Tapeti (Gureev, 1964:164), or Sylvilagus (Hershkovitz, 1950:335) .