[1]
A. Ramírez and P. E. Gutiérrez-Fonseca, “The larvae of Heteragrion majus Selys and H. atrolineatum Donnelly, with a key to known species from Costa Rica (Odonata: Megapodagrionidae)”, Zootaxa, vol. 3609, no. 1, pp. 96–100, Jan. 2013.