his world collection of Gyrinidae.A local collection of beetles is in Göttingen museum. Beetles described by Ochs Metagyrinus sinensis Coleoptera: Gyrinidae (1924) Gyrinus paykulli Coleoptera: Gyrinidae (1927) named for Gustaf von Paykull Duvalius ochsi ssp. deserticola Coleoptera: Carabidae described with René Jeannel German entomologists 1887 births 1971 deaths 20th-century German zoologists