Abstract
Herein, we present the first record of the nymph of Nanomis rasmusseni Chacón, Pescador & Segnini, 2013Chacón, M.M.; Pescador, M.L & Segnini, S. 2013. New species of Nanomis. Lugo-Ortiz and McCafferty, 1999 (Ephemeroptera: Baetidae) from Venezuela. Aquatic Insects - International Journal of Freshwater Entomology, 35: 1-2, 1-14., from two biogeographic regions in Colombia. This species was originally described for the Venezuelan Andes. Both Colombian and Venezuelan populations occur at high elevations, in streams with similar altitudes. We also found that both populations can be distinguished from each other by the terga II, VII, and IX coloration, in addition to the branching pattern of the abdominal gills.
Key-Words.
Arthropoda; Distribution; Neotropical; Taxonomy
