Pierre François Marie Auguste Dejean, Date of Birth, Place of Birth, Date of Death

Pierre François Marie Auguste Dejean

French entomologist

Date of Birth: 10-Aug-1780

Place of Birth: Amiens, Hauts-de-France, France

Date of Death: 17-Mar-1845

Profession: politician, military officer, entomologist

Nationality: France

Zodiac Sign: Leo

Pierre François Marie Auguste Dejean (10 August 1780 – 17 March 1845), was a French entomologist.
A soldier of fortune during the Napoleonic Wars, he rose to the rank of lieutenant general and aide de campe to Napoleon.
He amassed vast collections of Coleoptera, some even collected on the battlefield at Waterloo.
He listed 22,399 species in his cabinets in 1837—at the time, the greatest collection of Coleoptera in the world.
In 1802, he began publishing a catalogue of his vast collection, including 22,000 species names.
Dejean was an opponent of the Principle of Priority in nomenclature.
"I have made it a rule always to preserve the name most generally used , and not the oldest one; because it seems to me that general usage should always be followed and that it is harmful to change what has already been established".
Dejean acted accordingly and often introduced in litteris names, given by himself to replace those already published by other authors.
They became invalid.
Dejean was president of the Société entomologique de France for the year 1840.
In 1834, he was elected a foreign member of the Royal Swedish Academy of Sciences.
He died on 17 March 1845.

Jacques François Llanta (1807–1864)
Description	French lithographer
Date of birth/death	18 November 1807	1864
Location of birth	Paris
Authority control	: Q20085257 VIAF: 56342802 ISNI: 0000 0001 0800 4805 LCCN: no2005041694 NLA: 35950646 GND: 1036634302 WorldCat