Results
We collected 15,573 individuals of aquatic insects distributed among 92 taxonomic groups. We identified 84 genera in the orders Coleoptera, Diptera, Ephemeroptera, Plecoptera, Trichoptera and Megaloptera. Eight groups were identified to the family level (Dryopidae, Dystricidae, Gyrinidae, Hydrophilidae, Ptilodactylidae, Ceratopogonidae, Empididae and Simuliidae). The Chironomidae family was the most well represented, with 38 genera, followed by the order Ephemeroptera (20 genera), Trichoptera (13 genera) and Elmidae (10 genera). The order Plecoptera had only the genus Anacroneuria (Perlidae) and we identified the genera Corydalus and Protosialis in the order Megaloptera.