Lambertus Johannes Toxopeus (1894 - April 21, 1951) was a Java-born, Dutch university teacher, entomologist,

lepidopterist Lepidopterology ()) is a branch of entomology concerning the scientific study of moths and the two superfamilies of butterflies. Someone who studies in this field is a lepidopterist or, archaically, an aurelian. Origins Post-Renaissance, the r ...

and botanical collector. In 1921-1922 he participated in the Royal Dutch Geographical and Treub Society expedition to the western

Maluku Islands The Maluku Islands ( ; , ) or the Moluccas ( ; ) are an archipelago in the eastern part of Indonesia. Tectonics, Tectonically they are located on the Halmahera Plate within the Molucca Sea Collision Zone. Geographically they are located in West ...

. He gained his doctoral degree in 1930 at the

University of Amsterdam The University of Amsterdam (abbreviated as UvA, ) is a public university, public research university located in Amsterdam, Netherlands. Established in 1632 by municipal authorities, it is the fourth-oldest academic institution in the Netherlan ...

and then returned to the island of

Java Java is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea (a part of Pacific Ocean) to the north. With a population of 156.9 million people (including Madura) in mid 2024, proje ...

. He mainly worked in Indonesia, then known as the Dutch East Indies, and specialised in the families

Lycaenidae Lycaenidae is the second-largest family (biology), family of butterflies (behind Nymphalidae, brush-footed butterflies), with over 6,000 species worldwide, whose members are also called gossamer-winged butterflies. They constitute about 30% of ...

and

Hesperiidae Skippers are a group of butterflies placed in the family Hesperiidae within the order Lepidoptera (moths and butterflies). They were previously placed in a separate superfamily, Hesperioidea, but have since been placed in the superfamily Papilion ...

. In 1934 he collected in

Sumatra Sumatra () is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the list of islands by area, sixth-largest island in the world at 482,286.55 km2 (182,812 mi. ...

. In 1938-1939 he participated in the Third Archbold Expedition to

Dutch New Guinea Dutch New Guinea or Netherlands New Guinea (, ) was the western half of the island of New Guinea that was a part of the Dutch East Indies until 1949, later an overseas territory of the Kingdom of the Netherlands from 1949 to 1962. It contained ...

. He died in

Bandung Bandung is the capital city of the West Java province of Indonesia. Located on the island of Java, the city is the List of Indonesian cities by population, fourth-most populous city and fourth largest city in Indonesia after Jakarta, Surabay ...

, Java in 1951.

References

Dutch lepidopterists 1894 births 1951 deaths People from Java Indonesian Christians Indonesian people of Dutch descent Indonesian biologists 20th-century Dutch zoologists {{Netherlands-scientist-stub