Template:Sassi, 2020a

• Sassi, D. 2020. Four peculiar new Metallactus species from Argentina (Coleoptera: Chrysomelidae, Cryptocephalinae). Fragmenta Entomologica 52(2): 355–364. DOI: 10.13133/2284-4880/465 .  
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Nomenclatural acts

• Date of publication: 15 November 2020
• ZooBank: 87A1F7A2-5815-4446-A798-7A0132E09C4 [404 - Not Found]

New names (4)

• Metallactus aemulus
• Metallactus canescens
• Metallactus diaguita
• Metallactus nugator