Gryllus is the most widely distributed genus of the Tribe Gryllini, and may be the largest; it includes 69 described species occupying most of the New World, Africa, and Europe, and much of Asia. A new species from Korea significantly extends the known range of the genus.
Alexander, Richard D.
"A Review of the Genus Gryllus (Orthoptera: Gryllidae), With a New Species From Korea,"
The Great Lakes Entomologist: Vol. 24
, Article 4.
Available at: http://scholar.valpo.edu/tgle/vol24/iss2/4