Carlo Emery (25 October 1848,

Naples Naples ( ; ; ) is the Regions of Italy, regional capital of Campania and the third-largest city of Italy, after Rome and Milan, with a population of 908,082 within the city's administrative limits as of 2025, while its Metropolitan City of N ...

– 11 May 1925) was an Italian

entomologist Entomology (from Ancient Greek ἔντομον (''éntomon''), meaning "insect", and -logy from λόγος (''lógos''), meaning "study") is the branch of zoology that focuses on insects. Those who study entomology are known as entomologists. In ...

. He is remembered for Emery's rule, which states that insect social parasites are often closely related to their hosts. Early in his career Carlo Emery pursued a course in general medicine, and in 1872 narrowed his interests to ophthalmology. In 1878 he was appointed Professor of Zoology at the

University of Cagliari The University of Cagliari () is a public research university in Cagliari, Sardinia, Italy. It was founded in 1606 and is organized in 11 faculties. History The ''Studium Generalis Kalaritanum'' was founded in 1606 along the lines of the old ...

, remaining there for several years until 1881 when he took up an appointment at the

University of Bologna The University of Bologna (, abbreviated Unibo) is a Public university, public research university in Bologna, Italy. Teaching began around 1088, with the university becoming organised as guilds of students () by the late 12th century. It is the ...

as Professor of Zoology, remaining there for thirty-five years until his death. Emery specialised in

Hymenoptera Hymenoptera is a large order of insects, comprising the sawflies, wasps, bees, and ants. Over 150,000 living species of Hymenoptera have been described, in addition to over 2,000 extinct ones. Many of the species are parasitic. Females typi ...

, but his early work was on

Coleoptera Beetles are insects that form the Taxonomic rank, order Coleoptera (), in the superorder Holometabola. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 40 ...

. Prior to 1869, his earliest works were a textbook of general zoology and papers on fishes and molluscs. From 1869 to 1925 he devoted himself almost entirely to the study of ants. Emery published extensively between 1869 and 1926 describing 130

genera Genus (; : genera ) is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses. In binomial nomenclature, the genus name forms the first part of the binomial s ...

and 1057

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

mainly in Wytsman's ''Genera Insectorum'' series. Emery's collections of Hymenoptera are in the

Museo Civico di Storia Naturale Giacomo Doria The Museo Civico di Storia Naturale Giacomo Doria is a natural history museum in Genoa, northern Italy. It is named after the naturalist Giacomo Doria, who was the founder and the curator for over forty years. The museum was founded in 1867 and c ...

in Genoa. His Coleoptera are in Rome's Museo Civico di Zoologia. He died at Bologna in 1925.

References

* Anonym 1925: mery, C.''Entomologist's Monthly Magazine'' (3) 61:209 * Conci, C. 1975: Repertorio delle biografie e bibliografie degli scrittori e cultori italiani di entomologia. ''Mem. Soc. Ent. Ital.'' 48 1969(4) 904–905

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Hymenopterists 1848 births 1925 deaths 19th-century Neapolitan people Italian entomologists Academic staff of the University of Cagliari {{entomologist-stub