HEDSTRÖM, I.; SAHLÉN, G. A key to the adult Costa Rican “helicopter” damselflies (Odonata: Pseudostigmatidae) with notes on their phenology and life zone preferences. Revista de Biología Tropical, [S. l.], v. 49, n. 3-4, p. 1037–1056, 2001. Disponível em: https://revistas.ucr.ac.cr/index.php/rbt/article/view/18052. Acesso em: 8 may. 2024.