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Jordal, B.H. 2009. Two new species of Aphanarthrum Wollaston (Coleoptera: Curculionidae, Scolytinae) associated with Euphorbia in South Africa. Zootaxa. 1983, 1 (Jan. 2009), 54–62. DOI:https://doi.org/10.11646/zootaxa.1983.1.4.