Tags: Entomologist.
Fritz Rühl also Roule (1836 – 1893 Zurich) was a Swiss entomologist. He was a professional insect collector and insect dealer who worked with the Berlin natural history dealers and publishers Alexander Heyne and Otto Staudinger. His Hymenoptera collections were sold to Paolo Magretti and are conserved in the Museo Civico di Storia Naturale di Genova.