"Heinrich H. Riffarth (1860 – 21 January 1908) was a German entomologist who specialised in Lepidoptera.
He was an entrepreneur. The Riffarth collection of Heliconiidae was sold ...
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to James John Joicey, his Agrias specimens were sold to the Natural History Museum at Tring. The remaining exotic butterflies went to Hermann Rolle." - (en.wikipedia.org 12.08.2021)