@article{schaefer_1998,  title={The taxonomic status of Xyonysius major (Berg) (Hemiptera: Lygaeidae), an occasional pest of sunflower in Brazil},  volume={27},  ISSN={0301-8059},  url={https://doi.org/10.1590/S0301-80591998000100007},  DOI={10.1590/S0301-80591998000100007},  number={1},  journal={Anais da Sociedade Entomológica do Brasil},  publisher={Sociedade Entomológica do Brasil},  author={Schaefer, Carl W.},  year={1998},  month={Mar},  pages={55–58} }