Two new species of Cyclocephala Dejean, 1821 (Melolonthidae: Dynastinae: Cyclocephalini) from the castanea species group. - Paz-Ordoñez, Fernando; Simões-Vieira, Rubem Cláudio; Grossi, Paschoal Coelho (Papeis Avulsos de Zoologia, 2026)