First report of the genera Baetodes and Callibaetoides in French Guiana, and notes on the habitat (Ephemeroptera, Baetidae)

Nymphs of two genera belonging to the family Baetidae, Baetodes Needham & Murphy, 1924, and Callibaetoides Cruz, Salles & Hamada, 2013, were collected during hydrobiological surveys conducted in the La Trinité and Les Nouragues national reserves of French Guiana. These taxa are reported here for the first time in this French overseas department, and habitat information is provided. Both genera have been classified in the most pollutant-sensitive category (5) of the French Guiana biotic index SMEG. With these additions, the list of Ephemeroptera genera recorded in French Guiana now includes 43 genera, of which 38 are formally named. Twenty-four years after the first studies on the group, an updated inventory is required.