Homonota underwoodi is a species of gecko, a lizard in the family Phyllodactylidae.

[2] The specific name, underwoodi, is in honor of British herpetologist Garth Leon Underwood (1919–2002).

[3] H. underwoodi is found in the Argentinian provinces of Catamarca, La Rioja, Mendoza, Río Negro, and San Juan.

[2] The preferred natural habitat of H. underwoodi is shrubland.

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