@article{fonseca_1981,  title={Ovários anômalos em Passalus convexus Dalman, 1817 (Coleoptera: Passalidae)},  volume={11},  ISSN={0044-5967},  url={https://doi.org/10.1590/1809-43921981114839},  DOI={10.1590/1809-43921981114839},  number={4},  journal={Acta Amazonica},  publisher={Instituto Nacional de Pesquisas da Amazônia},  author={Fonseca, Claudio R. V.},  year={1981},  month={Dec},  pages={839–841} }