"Paul Hahnel (17 April 1843, Schlegenburg in Leobsanütz, Silesia - 12 May 1887, Manicore) He collected Lepidoptera and Coleoptera in Venezuela (1877/79) and made two Amazon ...
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expeditions the first 1879-1884) and the second, with Otto Michael 1885/87). His collection was sold to Otto Staudinger and Andreas Bang-Haas." - (en.wikipedia.org 10.11.2019)
