Sampling stations were established in a 50 m. section of the Limón, Lovaina, Rosario1, Rosario2, Pixvae, and De Mona revers, to determine the biological water quality and the trophic structure of the associated aquatic insect communities. Sampling was conducted from December 2019 until May 2021, for a total of 10 sampling campaigns for all rivers. Each genus found was assigned to a functional feeding group reported for the Neotropics. Specimens lacking feeding group information for the Neotropics were assigned a proposed group from the temperate zone. The BMWP-Veraguas were used for the biological water quality analysis. The studied sections of Limón, Lovaina, and Rosario1 showed category I water quality, which is considered clean, non-polluted water, while segments from Rosario2 and De Mona rivers showed category II water quality, which indicates water without sensitive alteration. The Pixvae river showed category III water quality, which means it had evident pollution effects. The cluster analysis performed with absence-presence of genera, through the Jaccard similarity coefficient and complete linkage allowed observation of 3 groups. Group 1 consisted of Limón, Lovaina, and Rosario1, while group 2 was formed by the Pixvae river, and group 3 included rivers Rosario 2 and De Mona. Community similarity in genus structure seems to indicate that studied river sections have the same biological water quality and the same trophic structure as well.
