References
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$\`{e}$ opt$\`{e}$ res russes de Victor de Motschulsky. Bulletin de la Société Impériale des Naturalistes de Moscou, 18(1): 3- 127, pls. 1-3 - Saito, M., 1999. Notes on the Japanese species of the genus Usechus (Coleoptera, Zopheridae). Elytra, 27: 103-111
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