Neto, J.D.L.G., Ribeiro, J.M.F. and Passos, M.A.B. 2019.

Two new species of Helicopsyche Siebold 1856 (Insecta: Trichoptera: Helicopsychidae) from Pará State, northern Brazil

. Zootaxa. 4565, 3 (Mar. 2019), 420–426. DOI:https://doi.org/10.11646/zootaxa.4565.3.8.