We are grateful to the curators of the collections mentioned in this paper, especially Matthias Borer and Isabelle Zürcher (NMB) as well as Max Barclay and Keita Matsumoto (BMNH) for having kindly received MB in their institutions and provided material, and Roberto Poggi (MSNG) for the loan of some Grouvelle’s types deposited at MSNG. Matthias Seidel is also thanked for his supervision in the Natural History Museum Wien, where MB has been for a long stay. This study was only made possible thanks to the financial support provided by the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq, Brazil), the Fundação de Amparo à Pesquisa do Estado do Amazonas (FAPEAM-POSGRAD, Brazil), as well as by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES, Brazil) through doctoral (Finance Code 001) and sandwich doctorate abroad (PDSE; code 88881.690179/2022-01) scholarships. Finally, we thank Takahiro Yoshida and an anonymous reviewer for their valuable comments and suggestions for the text, which improved the quality of this work.

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