John David Digues La Touche (5 June 1861 – 6 May 1935) was an Irish ornithologist, naturalist, and zoologist.
[1] Notably, he wrote the A Handbook of the Birds of Eastern China, consisting of two volumes and altogether ten parts that were published in 1925–1934 (Taylor & Francis, London).
[6] Also, a genus of spider Latouchia in the family Halonoproctidae was presumably named after him as co-collector of the Chinese type species, alongside fellow naturalist Mr. C.B.
Else, a genus of flowering plants from China named Latouchea, belonging to the family Gentianaceae can also be an honorific as collected by both La Touche and his wife.
[7][8] The specific epithet of fokienensis resembles the maiden name of La Touche's wife, née Caroline Dawson Focken (1871–1945).