Heteropodagrion croizati sp. nov. is described and illustrated on the basis of two males and one female (holotype % : Colombia, Putumayo Dept., Mocoa, PNN Churumbelos (1° 09´40.93´´ N 76° 39´49.13´´ W) alt. 1000m, 28 i 2010. The new species is characterized by male paraproct surpassing length of cercus, genital ligula distally bilobulate, trumpet-shaped, and with laterally expanding distal lobes, and female with basal pale rings on all abdominal segments. A key for the known species of Heteropodagrion and the closely related Mesagrion leucorrhinum is provided.