@article{britto_caetano_moraes_2004,  title={Comparative analysis of morphological, structural and morphometric patterns of Polistes versicolor (Olivier) (Hymenoptera: Vespidae) hypopharyngeal glands},  volume={33},  ISSN={1519-566X},  url={https://doi.org/10.1590/S1519-566X2004000300007},  DOI={10.1590/S1519-566X2004000300007},  number={3},  journal={Neotropical Entomology},  publisher={Sociedade Entomológica do Brasil},  author={Britto, Fábio B. and Caetano, Flávio H. and Moraes, Regina L.M.S. de},  year={2004},  month={May},  pages={321–326} }