Claudius Rey was a French

France

The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 entomologist .

Rey’s family owned a prosperous printing

Printing

Printing is a process for reproducing text and image, typically with ink on paper using a printing press. It is often carried out as a large-scale industrial process, and is an essential part of publishing and transaction printing....

 works which went bankrupt in 1847. Fortunately, one of his uncles, the owner of a vineyard

Vineyard

A vineyard is a plantation of grape-bearing vines, grown mainly for winemaking, but also raisins, table grapes and non-alcoholic grape juice...

 producing Morgon, offered him employment. Impassioned by entomology, he began a collaboration with Etienne Mulsant

Étienne Mulsant

Martial Étienne Mulsant was a French entomologist and ornithologist.Initially employed in commerce, Mulsant wrote writes Lettres à Julie sur l'entomologie, suivies d'une description méthodique de la plus grande partie des insectes de France, ornées de planches… Martial Étienne Mulsant (March 2,...

 (1797–1880) who was then working on Histoire naturelle des coléoptères de France - Natural History of the Beetles of France. In 1852, Rey settled in Lyon

Lyon

Lyon , is a city in east-central France in the Rhône-Alpes region, situated between Paris and Marseille. Lyon is located at from Paris, from Marseille, from Geneva, from Turin, and from Barcelona. The residents of the city are called Lyonnais....

, in the residence of his brother in Saint-Genis-Laval. He took his Winter holidays in the South of France seeking insects. His work with Mulsant lasted until Mulsant’s death. The majority of the texts on Staphylinidae are the work of the two entomologists but five parts (Habrocerinae, Tachyporinae, Trichophyinae, Picropeplinae and Steninae) are the work of Rey alone. The Coleoptera are not the only study of Mulsant and Rey since they also worked on naturelle des punaises de France -the Natural history of the True Bugs

Hemiptera

Hemiptera is an order of insects most often known as the true bugs , comprising around 50,000–80,000 species of cicadas, aphids, planthoppers, leafhoppers, shield bugs, and others...

 of France. In addition to these publications, Claudius Rey wrote many articles on Coleoptera in journals . He described 8 genera

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 and 48 species

Species

In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

. 116 genera and 407 species bear his name alongside that of Mulsant.