Hans Kotzsch (24 April 1901, Dresden (Loschwitz) - 25 July 1950 Dresden (Blasewitz)) was a German entomologist who specialised in Lepidoptera.
From 1925 Kotzsch owned the entomological dealership "Hermann Wernicke" in Dresden. From here he sold insects collected on his many collecting trips (Rybachy Peninsula (1933), Armenia (1934), Hindu Kush (1936), Iran and Afghanistan (1939) Turkey and China. Many of his specimens are in Museum Alexander Koenig in Bonn and in Museum für Naturkunde Berlin. In 1948 two years before his death he purchased the business collection "Staudinger" - Bang-Haas from the widow of Otto Bang-Haas. Like most dealers of his time Kotzsch described many new subspecies of "exotic" butterflies, particularly from South America. Most are these are unsound but his taxonomic work on Palaearctic fauna is much better.
Beginning list
Friedrich Hermann Loew was a German entomologist who specialised in the study of Diptera, an order of insects including flies, mosquitoes, gnats and midges. He described many world species and was the first specialist to work on the Diptera of the United States.
Otto Staudinger was a German entomologist and a natural history dealer considered one of the largest in the world specialising in the collection and sale of insects to museums, scientific institutions, and individuals.
Ernst August Hellmuth von Kiesenwetter was a German entomologist who specialised in beetles.
Hans Ferdinand Emil Julius Stichel was a German entomologist who specialised in Lepidoptera.
Karl Borromaeus Maria Josef Heller, was an Austrian entomologist who specialised in Coleoptera. He was a Professor and Section leader in the Staatliches Museum für Tierkunde Dresden where his collection is maintained. Heller was a taxonomist. He described many new species of world fauna. He was a Member of the Stettin Entomological Society.
Andreas Bang-Haas was a Danish entomologist and insect dealer.
Rudolf Püngeler was a German entomologist who specialised in Lepidoptera. He was a district court lawyer in Aachen.
Theodor Franz Wilhelm Kirsch was a German entomologist who specialised in Coleoptera.
Carl Heinrich Michael Ribbe was a German explorer and entomologist.
Arnold Schultze was a German officer, geographer, and entomologist who specialised in Lepidoptera.
Paul Gustav Eduard Speiser (1877–1945) was a German entomologist who specialised in Diptera.
Fritz Wagner was an Austrian entomologist who specialised in Lepidoptera.
Max Gaede was a German engineer and entomologist of international fame who described several hundred of new species of Lepidoptera, mainly African Noctuidae.
Gustav Adolf Carl Closs also as Closs, A., Closs, A.G., Closz, Adolf Gustav was a German painter, illustrator and heraldist and an entomologist.
Ernst Suffert was a German entomologist who specialised in studies of Lepidoptera.
Max Joseph Bastelberger was a German medical doctor and entomologist. He was specialized on geometrid moths and described 351 new taxa.
Fritz Ludwig Otto Wichgraf was a German entomologist.
Adolph Speyer was a German entomologist who specialised in Lepidoptera, especially Hesperiidae.
Fritz Netolitzky was a German botanist and entomologist who specialised in Coleoptera. He described many new species. Fritz Netolitzky was born in Zwickau on 1 October 1875 into a respected family who had lived in Rokitnitz since the early 18th century. His grandfather taught him natural history and Fritz Netolitzky went on to study in Prague, Vienna and Strasbourg. Aged 24 he gained a Ph.D. in medicine. Following this he served as a Kaiserjäger for one year and he also served as a doctor on a ‘Kosmos-Linie’ ship registered in Hamburg, a journey which took him along the South American west coast. Fritz Netolitzky taught at the University of Vienna (1896-1899), then at the University of Innsbruck (1899-1904) then at the University of Graz (1904-1910). From 1910 to 1940 he taught at the University of Chernivtsi.From 1940 to 1941 he worked at the University of Iasi, then he was Professor of Botany at the University of Vienna. With his sister Magdalena and brother, Richard, Fritz Netolitzky wrote a parody of Heinrich Hoffman's Struwwelpeter set in Egypt- The Egyptian Struwwelpeter (London: H. Grevel & Co., [1896]
Rudolf Emil Mell was a German zoologist and entomologist who specialised in Lepidoptera especially Sphingidae and the fauna of China. He was the director of the German-Chinese Middle School at Canton (Guangzhou) for some time. His collection of Sphingidae is held by the Carnegie Museum of Natural History in Pittsburgh. It was purchased by Benjamin Preston Clark.