Johann Heinrich Fixsen (19 October 1825 in

St. Petersburg Saint Petersburg ( rus, links=no, Санкт-Петербург, a=Ru-Sankt Peterburg Leningrad Petrograd Piter.ogg, r=Sankt-Peterburg, p=ˈsankt pʲɪtʲɪrˈburk), formerly known as Petrograd (1914–1924) and later Leningrad (1924–1991), i ...

– 4 September 1899 in

Hamburg Hamburg (, ; nds, label=Hamburg German, Low Saxon, Hamborg ), officially the Free and Hanseatic City of Hamburg (german: Freie und Hansestadt Hamburg; nds, label=Low Saxon, Friee un Hansestadt Hamborg),. is the List of cities in Germany by popul ...

) was a German

entomologist Entomology () is the scientific study of insects, a branch of zoology. In the past the term "insect" was less specific, and historically the definition of entomology would also include the study of animals in other arthropod groups, such as arach ...

who specialized in the Lepidoptera of the

Palaearctic Region The Palearctic or Palaearctic is the largest of the eight biogeographic realms of the Earth. It stretches across all of Eurasia north of the foothills of the Himalayas, and North Africa. The realm consists of several bioregions: the Euro ...

. He wrote ''Lepidopteren-Verzeichniss der Umgegend von St. Petersburg'' (In Bull Moscou 22(1)) 1849 and many other scientific works describing new species. His collection is in th
Biozentrum Grindel und Zoologisches Museum

References

{{DEFAULTSORT:Fixsen, Johann Heinrich German lepidopterists 1825 births 1899 deaths Scientists from Saint Petersburg 19th-century German zoologists