FIGURE 6 in The genus Heteragrion (Odonata: Zygoptera) in Northwestern Colombia, with the description of Heteragrion tatama sp. nov.

FIGURE 6. Heteragrion calendulum, Santa Cecilia, habitus: a, male; b, female (Photos by Juliana Sandoval). H. aequatoriale, PNN Tatamá, male caudal appendages: c, middorsal view; d, dorsal view. H. tatama, PNN Tatamá, male caudal appendages: e, middorsal view; f, dorsal view; g, lateral view; h, middorsal view (different view angle compared with figure 6e). H. calendulum, male cercus in middorsal view: i, Rancho Frío (Panama); j, Holotype, La Cristalina (Colombia). Da.r.: Dorsoapical ridge; M. p.: Medial process; M. r.: Medial ridge; Vb. e.: Ventrobasal expansion. Illustrations c-g by Natalia Uribe, j by Edward Williamson.