Pierre François Marie Auguste Dejean
Count Pierre François Marie Auguste Dejean ( born August 10, 1780 in Amiens, † March 18, 1845 in Paris) was a French lieutenant general and entomologist. His father was General Jean -François -Aimé Dejean.
Biography
Pierre Francois studied medicine, then stepped but still young in the military service, and accompanied his father in 1795 during the revolutionary wars of the French Revolution to the northern army. Later he distinguished himself in Spain and during the Russian campaign of 1812 and 1813 Division General. At Waterloo Napoleon's adjutant Dejean was I, after having been a short time before as an imperial government commissioner at the northern limit active. As such, he filed a political reports to the emperor that were printed in the portfolio de Bonaparte Saisi à Waterloo and treat injuries sustained him after the second restoration of the second exile. In 1818 he was allowed to return to France, after the death of his father he became in 1824 a member of the Chamber of Peers.
Since his youth, Dejean entomology was inclined, in particular the study of beetles. He compiled an extraordinary collection, the largest in Europe at the time was 20,000 species. The collection also contained during the Napoleonic campaigns, for example at Waterloo collected beetles. As he exchanged much he had in his collection beetles from all over the world. In particular, he focused on ground beetles ( Carabidae ). He described many North American species, Johann Friedrich Eschscholtz had collected. Useful he made in particular by a systematic catalog and a system of beetles, the species général des coleopteres ( with Charles Nicholas Aubé ( 1802-1869 ), 6 volumes, Paris 1825).
Pierre Francois Marie Auguste Dejean died on 18 March 1845.
His collection is now dispersed to various museums ( such as Turin, London, Barcelona).