Changes in the distribution of two Gyrinidae species over time. Occurrences of a probably extinct species, Gyrinus minutus A. Before the years 2000 and B. After. Occurences of Gyrinus substriatus, the most common Gyrinidae in Switzerland C. Before the years 2000 and D. After 2000.

 
 
  Part of: Cosandey V, Chittaro Y, Sanchez A (2024) An updated checklist of the Hydradephaga of Switzerland (Coleoptera). Alpine Entomology 8: 87-119. https://doi.org/10.3897/alpento.8.124813