Betrem, Johan George (1899-1980)

BIOGRAPHICAL NOTE
Dutch entomologist who worked in Indonesia.

Born: 1899, The Hague, Holland.

Zoologist, educated at Leiden University (Ph. Dr 1928); Assistant in the Entomological Laboratory at Wageningen, 1926-28, and in 1929 Phytopathologist; Entomologist of the Malang Experiment Station in E. Java, 1930-38, subsequently Agriculturist-Entomologist, and finally Head of the Central Java division. After World War II he was evacuated to Holland; at present teacher at the Colonial Agricultural School at Deventer.

Author of several zoogeographical, entomological, phytopathological, and eco-climatological studies.

Collecting localities:

E.g. Centr. Java: G. Moeriah, Djolong Estate (June 1939).

collections:

Herb. Leiden [L] and Herb. Bog. [BO], few plants.

TAXONOMIC PUBLICATIONS

 * [[Media:Betrem 1926.pdf|Betrem, J. G. 1926. De mierenfauna van Meijendel. Levende Nat. 31: 211-220.]]


 * [[Media:Betrem 1953.pdf|Betrem, J. G. 1953. Enkele opmerkingen omtrent de soorten van de Formica rufa-groep (Hym.). Entomol. Ber. (Amst.) 14: 322-326.]]


 * [[Media:Betrem 1954.pdf|Betrem, J. G. 1954. De satermier (Formica exsecta Nyl., 1846) en enkele van haar problemen (Hym. Form.). Entomol. Ber. (Amst.) 15: 224-230.]]


 * [[Media:Betrem 1955a.pdf|Betrem, J. G. 1955a. On some ant types of Fabricius. Entomol. Ber. (Amst.) 15: 291-293.]]


 * [[Media:Betrem 1955b.pdf|Betrem, J. G. 1955b. De systematische plaats van Formica congerens ab. thijssei Stärcke (Hym., Form.). Entomol. Ber. (Amst.) 15: 391-393.]]


 * [[Media:Betrem 1960a.pdf|Betrem, J. G. 1960a. Formica truncorum F. niet inheems. Entomol. Ber. (Amst.) 20: 130-134.]]


 * [[Media:Betrem, J. G. 1960b.pdf|Betrem, J. G. 1960b. Ueber die Systematik der Formica rufa-gruppe. Tijdschr. Entomol. 103: 51-81.]]


 * [[Media:Betrem 1962a.pdf|Betrem, J. G. 1962a. Quelques remarques sur l'identité de la Formica nigricans. Entomol. Ber. (Amst.) 22: 38.]]

REFERENCE

 * Achtenberg (1982). Johan George Betrem (1899-1980). Sphecos 5: 15-18.