Bembidion ambiguum, closeup of shoulder of elytron, showing the angled margin. The arrow points to the vertex of the angle. Scale bar is 0.1 mm.

 
  Part of: Maddison D, Will K, Crews S, LaBonte J (2018) Bembidion ambiguum (Coleoptera: Carabidae) is established in California. Biodiversity Data Journal 6: e30763. https://doi.org/10.3897/BDJ.6.e30763