L. Knutson and A. Bredt, “Two new species of snail-killing flies from west-central Brazil (Diptera, Sciomyzidae)”, Pap. Avulsos Zool., vol. 30, no. 1-20, pp. 113–118, Dec. 1976, doi: 10.11606/0031-1049.1976.30.p113-118.