The larva of Hetaerina duplex Selys, 1853 (Odonata: Calopterygidae) with a key to known Colombian larvae species

The larva of Hetaerina duplex is described and illustrated for the first time based on specimens from Quindío and Risaralda departments of Colombia. Larvae of H. duplex differ from other species of the genus by well-developed spines on the lateral carina from S2 to S10 and S10 with one well-developed mid-dorsal spine on the posterior border. In addition, habitat and habits information are commented on. Finally, a comparative key for known larvae of all Colombian species is presented with their distribution maps.