The J. O. Westwood Medal is awarded every two years by the Royal Entomological Society (RES).
The criteria for the award are: [1]
The best comprehensive taxonomic work on a group of insects, or, related arthropods (including terrestrial and freshwater hexapods, myriapods, arachnids and their relatives). Typically, this will be a taxonomic revision or monograph. Open to authors from any country who demonstrate the highest standards of descriptive taxonomy in the work nominated.
and the winner is chosen by a panel of senior and international RES Fellows. [1]
The award was inaugurated in 2008, [1] and is named in honour of the entomologist, John O. Westwood. Recipients are awarded a silver gilt medal and £1000. [1]
Past winners include: [1]