@article{Paulsen2018,
  author    = {Matthew J. Paulsen},
  title     = {Revision of the obesus species group of the stag beetle genus Nigidius MacLeay (Coleoptera: Lucanidae: Lucaninae: Figulini)},
  journal   = {Insecta mundi},
  volume    = {2018},
  number    = {article 624},
  pages     = {1 -- 16},
  url       = {https://journals.flvc.org/mundi/article/view/0624},
  year      = {2018},
}