Spex guttatus (Fabricius,1793) preocc.
This species is almost certainly extinct in mainland Britain, with most records from more than 100 years ago. It is placed within its own sub-family, Dinetinae, it being the sole species of this genus in Europe.
Old records come from observations noted by F. Smith prior to 1880 around Windsor and Ascot in Berkshire (Falk, 1991). A more recent record is from Oxshott Heath, Surrey, in 1950 (Baker in Baldock, 2010); unfortunately, the specimen was exchanged with a Japanese collector and is no longer available for inspection. There are modern records from Jersey on the Channel Islands.
Abroad, records are spread across much of Europe, although it is considered by Lomholdt (1984) to be a Mediterranean species with an emphasis, therefore, very much on southern European countries.