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Constant, J. and Pham, H.-T. 2017. Gergithoides Schumacher, 1915 in Vietnam, with two new species, and taxonomic notes on the genus (Hemiptera: Fulgoromorpha: Issidae). European Journal of Taxonomy. 296 (Mar. 2017). DOI:https://doi.org/10.5852/ejt.2017.296.