James Abram Garfield Rehn (October 26, 1881 – January 25, 1965) was an American entomologist who was a specialist on the New World

Orthoptera Orthoptera () is an order of insects that comprises the grasshoppers, locusts, and crickets, including closely related insects, such as the bush crickets or katydids and wētā. The order is subdivided into two suborders: Caelifera – grassho ...

. He worked at the Academy of Natural Sciences of Philadelphia, making several collection expeditions around the world on their behalf. Rehn was born in Philadelphia to William and Cornela Loud Rehn. He studied at the Public Industrial Art School and at the Pennsylvania Academy of Fine Arts. He took an interest in natural history at a young age and along with several others of his age were encouraged by Charles Willison Johnson, curator of the Wagner Free Institute of Science. He joined the Academy of Natural Sciences of Philadelphia as a Jessup student in 1900. Here he met many other naturalists including the ornithologist

Witmer Stone Witmer Stone (September 22, 1866 – May 24, 1939) was an American ornithologist, botanist, and mammalogist, and was considered one of the last of the “great naturalists.” Stone is remembered principally as an ornithologist. He was president ...

from whom Rehn received informal training. Rehn met a 16 year old

Morgan Hebard Morgan Hebard (February 23, 1887 – December 28, 1946) was an American entomologist who specialized in orthoptera, and assembled a collection of over 250,000 specimens. Early life and education Morgan Hebard was born on February 23, 1887, in Cle ...

in 1903 and the two maintained a close association until Hebard's death in 1946. Hebard graduated from Yale and after working in the family business, he quit in 1911 and dedicated his life to entomology. Hebard and Rehn made numerous trips together across America collecting orthoptera. The work on a monograph by the two was postponed after arthritis hit Hebard in 1930. Rehn eventually began work in 1954 and the first volume was published in 1961 along with Harold J. Grant. He was an editor of the ''

Transactions of the American Entomological Society Transaction or transactional may refer to: Commerce *Financial transaction, an agreement, communication, or movement carried out between a buyer and a seller to exchange an asset for payment *Debits and credits in a Double-entry bookkeeping syst ...

'' from 1917 to 1924. His son John William Holman Rehn was briefly interested in entomology and published some papers with his father but gave it up for a career in the US Army.

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* {{DEFAULTSORT:Rehn, James A. G. American entomologists 1881 births 1965 deaths Scientists from Philadelphia 20th-century American zoologists