Johann Angelo Ferrari (1806-18 May 1876, Vienna was an Austrian entomologist born in Italy who specialised in Coleoptera especially Scolytidae
He is not to be confused with Pietro Mansueto Ferrari also an entomologist. He wrote Die Forst- und Baumzuchtschädlichen Borkenkäfer (Tomicides Lac.) aus der Familie der Holzverderber (Scolytides Lac.), mit besonderer Berücksichtigung vorzüglich der europäischen Formen, und der Sammlung der k. k. zoologischen Kabinettes in Wien. Gerolds Sohn, Wien
Philipp Christoph Zeller was a German entomologist.
Johann Nepomuk Cosmas Michael Denis, also: Sined the Bard, was an Austrian Catholic priest and Jesuit, who is best known as a poet, bibliographer, and lepidopterist.
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.
Ignaz Rudolf Schiner was an Austrian entomologist who specialised in Diptera.
Oswald Duda, full name Pavel Theodor Friedrich Oswald Duda was a German entomologist mainly interested in Diptera.
Theodor Becker was a Danish-born German civil engineer and entomologist primarily known for studies on the taxonomy of flies.
Ferdinand Ochsenheimer was a German actor and entomologist (lepidopterist).
Friedrich Georg Hendel was an Austrian high school director and entomologist mainly interested in Diptera. He described very many new species and made important contributions to the higher taxonomy of the Diptera.
Josef Mik, also Joseph Mik was a Bohemian entomologist mainly interested in Diptera. He described many new species and made contributions to knowledge of the Diptera of Central Europe. Mik was the first dipterist to clarify the chaetotaxy of the legs. " On the legs I distinguish a front [chaeta]- and a hind-side ; an upper- and an under-side. When we imagine the leg stretched out horizontally and perpendicularly to the longitudinal axis of the body, the front-side is that which is turned towards the head, and the hind-sidethat turned towards the end of the body ; the upper- and under-side, in such a case, are self-understood."
Friedrich Moritz Brauer was an Austrian entomologist who was Director of the Naturhistorisches Hofmuseum, Vienna, at the time of his death. He wrote many papers on Diptera and Neuroptera.
Vincenz Kollar was an Austrian entomologist who specialised in Diptera. He was especially concerned with species of economic interest, particularly those of forests. Kollar described many new species. He was Curator of the Natural History Museum in Vienna. He worked mainly on insects collected on expeditions, especially that from the Austrian Brazil Expedition of 1817–1835.
Rudolf Felder was an Austrian jurist and entomologist. He was mainly interested in Lepidoptera, amassing, with his father, Cajetan Felder, a huge collection.
Hermann Reinhard was a German physician and entomologist. He specialised in Hymenoptera. Reinhard's medical practice was in Bautzen. In 1881 he worked with Eduard von Hofmann on the insects of exhumed bodies making him one of the founders of forensic entomology.
Karl Wilhelm von Dalla Torre was an Austrian taxonomist, entomologist and botanist.
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.
Karl Eduard Hammerschmidt, also known as Abdullah Bey, was an Austrian mineralogist, entomologist, and physician.
Josef Emanuel Fischer von Röslerstamm or Josef Fischer von Röslerstamm or Josef Fischer von Rösslerstamm was an Austrian entomologist who specialised in Lepidoptera. He was an industrialist manufacturing macaroni, vermicelli, and other processed foods. He lived in Vienna from 1837. Röslerstamm developed a method system of systematic tables (1834–1842) for the Microlepidoptera and described many new species of these tiny moths. He studied often in the Naturhistorisches Museum with Alois Friedrich Rogenhofer and Josef Johann Mann.
Carl Brunner von Wattenwyl was a geologist and physicist who worked as the first head of telegraphy administration in Switzerland. He was the first to promote transnational cooperation for telegraphic networks. In his spare time he was an entomologist who specialised in the orthopteroid insects, and was also a botanist.
Karl or Carl Schawerda was an Austrian Czech entomologist who specialised in Lepidoptera.
Johann Nepomuk Georg Egger, was an Austrian entomologist who specialised in Diptera.