Date of Birth: 
Place of Birth: Potsdam, Brandenburg, Germany
About John Nietner
- John Nietner born Johannes Werner Theodor Nietner (19 May 1828 - 21 February 1874) was a Prussian-born naturalist chiefly interested in botany and entomology.
- Born in Potsdam, he became a naturalized British citizen and owned a coffee plantation in Ceylon.
- During his stay in Ceylon from 1851 to 1874 he collected and described numerous insect species from the island.
- He also sent specimens for study by experts in Europe and many species such as Cethosia nietneri were named after him by others.
- Interested in insect pests, he wrote a booklet on the pests of coffee in 1861.
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