Gigagryllus is a genus of giant field cricket in the subfamily Gryllinae. Its type and only species is Gigagryllus omayrae.
Etymology The species name, omayrae, is dedicated to Omayra Sánchez, a victim of the Armero tragedy, which occurred in the department of Tolima.
Distribution Gigagryllus omayrae is found in the middle Magdalena region of Colombia, particularly in the department of Tolima.
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