Souto, P. M.; Da-Silva, E. R.; Nessimian, J. L. Description of the Nymph of Massartella alegrettae Ulmer, 1943 (Ephemeroptera: Leptophlebiidae: Atalophlebiinae) With a Key to Massartella Lestage, 1930 Nymphs. Zootaxa 2013, 3681, 583–588.