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Nymph inadvertently described as new species for a fourth time? On the identity of Euscelimena hardi (Tetrigidae: Scelimeninae) with general remarks on the identification of pygmy grasshopper nymphs

. Zootaxa. 4418, 1 (May 2018), 93–97. DOI:https://doi.org/10.11646/zootaxa.4418.1.6.