Abstract
Rhodnius marabaensis was collected inside the Reserva Ambiental Murumuru, in Pará, on May 12th, 2014 and described by Souza et al. in 2016. This species description was performed by the comparison between the latter and R. prolixus and also R. robustus. This recent description makes it valid to propose a morphometric study of the nymphal instars of R. marabaensis, as well as its counterpa…