Gertrude Ricardo (11 September 1862 - 31 October 1950) was a British entomologist and taxonomist who specialised in Diptera, particularly the families Asilidae (assassin flies) and Tabanidae (horseflies and deerflies).
From 1900 Ricardo began to publish taxonomy research papers based upon her studies of Diptera in the collection of the British Museum (Natural History).
The British Museum's Keeper of Entomology Norman Denbigh Riley (1890–1979) summed up Ricardo's work like this in 1964: "she broke new ground, but left it very rough.
[23] In 1902 Gertrude Ricardo traveled to Canada, including a visit to the area where her siblings lived, and she would later send a collection she had made of Canadian Hymenoptera to Charles Thomas Bingham at the British Museum.
[30] In the 1940s Ricardo occasionally opened Phelps House garden to the public as part of a scheme to raise money for local nursing charities.
[115] 1903: [with F V Theobald]: Insecta: Diptera: in The Natural History of Sokotra and Abd-el-Kuri (Special Bulletin of the Liverpool Museums), ed.