Hermann August Hagen
| Hermann August Hagen | |
|---|---|
 |
|
| Born | 30 May 1817 Königsberg, Prussia |
| Died |
9 November 1893 (aged 76) Cambridge, Massachusetts, United States |
| Nationality | German |
| Fields | Entomology |
| Institutions | Harvard University |
| Influences |
Martin Heinrich Rathke Karl Robert Osten-Sacken |
| Author abbrev. (zoology) | Hag. |
Hermann August Hagen (30 May 1817 – 9 November 1893) was a German entomologist who specialised in Neuroptera and Odonata. He had established himself as one of Europe's preeminent entomologists by 1867 when he accepted a position at Harvard University to curate the Museum of Comparative Zoology. In 1870 he became the first entomologist in the United States to hold the formal title, Professor of Entomology.
Hagen was born 30 May 1817 in Königsberg, Prussia. He was the son of Anna (Linck) Hagen and Carl Heinrich Hagen. His father was a senior government counselor and a professor of political science at the University of Königsberg and his grandfather, Karl Gottfried Hagen, was a professor of chemistry at the same university.
Young Hagen graduated from a gymnasium in 1836 and began to study medicine at the University of Königsberg. His course of studies was greatly influenced by his zoology professor, Martin Heinrich Rathke and together they toured major entomological collections and libraries in Norway, Sweden, Denmark and Germany. In 1839 he published his first paper, List of the Dragonflies of East Prussia. In 1840, he received his medical degree, having written his thesis on European species of dragonflies. He then studied medicine in Berlin, Vienna, Paris, and elsewhere. In 1843, he returned to Königsberg, entered into the general practice of medicine, and for three years was first assistant at a surgical hospital.
In spite of the heavy workload at the hospital, Hagen continued his entomological studies. He published several papers on dragonflies as a result of his close collaboration with Edmond de Sélys Longchamps. They remained collaborators even after Hagen emigrated to America. Hagen also published the Monographie des Termites from 1855 to 1860. This detailed study of termites was called "a masterpiece of original work".
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