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M. R.  Sabordo, Delocado, E., and Freitag, H., ?Two new species of the genus Ancyronyx Erichson, 1847 from the island of Negros, Philippines (Insecta, Coleoptera, Elmidae)?, Tijdschrift voor Entomologie, vol. 163, pp. 1-18, 2020.

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T. T. S.  Polizei and Fernandes, A. S., ?The Neotropical genus Portelmis Sanderson, 1953 (Coleoptera: Elmidae): three new species, new records and updated key?, Zootaxa, vol. 4810, no. 3, pp. 452?467, 2020.

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T. T. S.  Polizei, Costa, Ld.S. M., and Bispo, Pd.C., ?Austrolimnius cleidecostae, a new species of riffle beetle (Coleoptera: Elmidae) from Brazil with habitat notes and updated key of the Brazilian species of the genus?, Papéis Avulsos de Zoologia, vol. 60, no. Special, pp. 1-10, 2020.

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H.  Freitag, Molls, C., Bouma, A. M., Garces, J. M., Rossato, M., Cosentino, E., and Delledonne, M., ?Additional new species of Grouvellinus Champion 1923 (Insecta, Coleoptera, Elmidae) discovered by citizen scientists and DNA barcoded in the field applying a novel MinION-based workflow?, Journal of Natural History, vol. 53, no. 41?42, pp. 2593-2620, 2020.

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Md.L. Sd. Almeida, Fernandes, A. S., and Boldrini, R., ?A new species of Macrelmis Motschulsky, 1859 (Coleoptera: Elmidae) and new  records of Elmidae from Roraima State, northern Brazil?, Zootaxa, vol. 4718, no. 2, pp. 277?284, 2020.