TENNESSEN, K. J. Perigomphus angularis spec. nov. from central Ecuador (Odonata: Gomphidae). Zootaxa, Auckland, New Zealand, v. 2915, n. 1, p. 66–68, 2011. DOI: 10.11646/zootaxa.2915.1.7. Disponível em: https://www.mapress.com/zt/article/view/zootaxa.2915.1.7. Acesso em: 2 may. 2025.