Justin Pierre Marie Macquart - Biography - French Diptera, Meigen and Marriage

French Diptera, Meigen and Marriage

He then worked fulltime on insects and studying in the library and on 27 Nivôse, Year 11 of the French Revolutionary Calendar (1802) he was elected a Fellow of the Société de Sciences de l’Agriculture et des Arts de la Ville de Lille. Soon he began travelling around France and went several times to Paris where he met Pierre André Latreille who suggested to specialize on Diptera, following the pioneering work of Johann Wilhelm Meigen. After some time in Holland he married and moved from Hazebrouck to Lestrem where he became a Conseillers régionaux of the Conseil régional du Nord-Pas-de-Calais.

At this time he began intensive studies of Diptera examining the collections of Henri Marie Ducrotay de Blainville, Étienne Geoffroy Saint-Hilaire, André Étienne d'Audebert de Férussac, Amédée Louis Michel Lepeletier de Saint Fargeau, Jean Guillaume Audinet-Serville, Alexandre Louis Lefèbvre de Cérisy, Gaspard Auguste Brullé and François Louis de la Porte, comte de Castelnau in France. He also went to Hamburg where Wilhelm von Winthem had assembled the largest collection of Diptera in the world. At the age of 25 he was one of the founders of the Société d’Amateurs des Sciences et Arts de la Ville de Lille. Many of his publications were published in the Mémoires of this Society. He also expanded the natural history holdings of the Musee d'Histoire Naturelle de Lille.

In these years he wrote Insectes diptères du nord de la France published in Lille in 1829. This prompted Latreille to enlist him as the author of the Diptera volumes of Suites à Buffon under his editorship. This arrangement was continued by Nicolas Roret when Latreille was ill. Two volumes were published as Histoire naturelle des insectes Dipteres. World Diptera were treated as well as French.

In 1839 Macquart visited Johann Wilhelm Meigen, then aged 75, in Stolberg, acquiring his notes and drawings and bringing his collection to Paris where it is now in the Muséum national d'histoire naturelle. This was an amical arrangement, though the collection was purchased. This established Macquart as Meigen's successor and Paris as the centre of Dipterology.

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