Career
He made three expeditions to the Amazon, 1885-1888 (until 1887 accompanied by Paul Hahnel ), 1889–1893 and 1894-1921, collecting mainly Lepidoptera for the dealership Otto Staudinger Andreas Bang-Haas.
entomologist explorer Zoologist
He made three expeditions to the Amazon, 1885-1888 (until 1887 accompanied by Paul Hahnel ), 1889–1893 and 1894-1921, collecting mainly Lepidoptera for the dealership Otto Staudinger Andreas Bang-Haas.
