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Iwan, D. and Schimrosczyk, D. 2013. A second species of the genus Helibatus Mulsant & Rey, 1859 (Coleoptera: Tenebrionidae: Opatrina). Zootaxa. 3626, 4 (Mar. 2013), 569–575. DOI:https://doi.org/10.11646/zootaxa.3626.4.10.