Ochthebius marinus. 34 mentum (ventral aspect) 35 head (ventral aspect) 36 maxillary palpus (ventral aspect) 37 pronotum (dorsal aspect) 38 anterior part of elytron (dorsal aspect) 39 posterior part of elytron (dorsal aspect) 40 mesoventrite (ventral aspect) 41 metaventrite (ventral aspect).

 
 
  Part of: Lee D-H, Ahn K-J (2016) A taxonomic review of the Hydraenidae in South Korea (Coleoptera). ZooKeys 634: 57-78. https://doi.org/10.3897/zookeys.634.10640