Hemiquedius ferox (Casey) (A, B, E); H. infinitus Brunke and Smetana (C, D, G); and H. castoris Brunke and Smetana (F). Aedeagus in parameral view (A, C), median lobe in lateral view (B, D), paramere (E), left portion of paramere with peg setae (F, G). Scale bars: 0.5 mm (A–E), 0.25 mm (F–G).

  Part of: Brunke A, Smetana A, Carruthers-Lay D, Buffam J (2017) Revision of Hemiquedius Casey (Staphylinidae, Staphylininae) and a review of beetles dependent on beavers and muskrats in North America. ZooKeys 702: 27-43. https://doi.org/10.3897/zookeys.702.19936