WJohann 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.
WBaron Cajetan von Felder was an Austrian lawyer, entomologist and liberal politician. He served as mayor of Vienna from 1868 to 1878.
WRudolf Felder was an Austrian jurist and entomologist. He was mainly interested in Lepidoptera, amassing, with his father, Cajetan Felder, a huge collection.
WKarl Eduard Hammerschmidt, also known as Abdullah Bey, was an Austrian mineralogist, entomologist, and physician.
WErnst Heeger, was an Austrian amateur entomologist. He was a graduate of the Academy of Fine Arts in Vienna, a "Privatcadet" in the Napoleonic Wars, and from 1816 an employee of the Magistrat of Vienna Later he founded a school of languages and drawing in Modling. As an entomologist, he was particularly interested in the biology of insects and in the benefits and damage caused by insects. He collaborated with Vincenz Kollar.He published a series of entomology works entitled Beiträge zur Naturgeschichte der Insecten and he was a pioneer of micrography publishing Album microscopisch-photographischer Darstellungen aus dem Gebiete der Zoologie between 1861 and 1863.
WHans Hirschke, sometimes Hanns, was an Austrian entomologist who specialised in Lepidoptera. He was first a linen weaver in Brno, then a gardener's apprentice. In 1899, he was Head of the Exchange Office Vienna and a Member of the Entomological Association of Vienna. Hans Hirschke described Alcis bastelbergeri and Phengaris rebeli in Jber. Wien. ent. Ver.
WGabriel Höfner was an Austrian entomologist, musician and composer.
WJulius Lederer was an Austrian entomologist who specialised in Lepidoptera. He travelled widely: to Andalusia in 1849 Carinthia with Johann von Hornig (1819–1886) in 1853, İzmir in 1864, Magnesia in 1865, Amasya and Turkey in 1866, Mersin and the Taurus Mountains in 1867, Lebanon in 1868 and the Balkans in 1870).
WHans Rebel was an Austrian entomologist who specialised in Lepidoptera.
WAlois Friedrich Rogenhofer was an Austrian entomologist. He was a curator at the Naturhistorisches Museum in Vienna, where he was the first keeper of the Lepidoptera. Rogenhofer was mainly interested in Lepidoptera, and Hymenoptera.
WIgnaz Schiffermüller was an Austrian naturalist mainly interested in Lepidoptera.
WFerdinand Stoliczka was a Moravian palaeontologist who worked in India on paleontology, geology and various aspects of zoology, including ornithology, malacology, and herpetology. He died of high altitude sickness in Murgo during an expedition across the Himalayas.