Laotris luzulae (Hymenoptera, Braconidae, Alysiinae, Dacnusini), a new species from the southwest of England

Laotris luzulae Godfray, sp. nov. is described in the small genus Laotris Nixon, 1943, (Braconidae, Alysiinae, Dacnusini) from five specimens reared from Cerodontha silvatica (Groschke, 1957) (Diptera, Agromyzidae) mining Luzula sylvatica (Huds.) Gaudin (Juncaceae) in Devon and Gloucestershire in the southwest of Great Britain. Six further specimens from Somerset caught as adults in the 1950s are also noted. It differs morphologically from the three described species of Laotris and shows a 4.2% and 6.6% genetic distance at the CO1 barcode locus from an undescribed North American species and from the European L. striatula (Haliday, 1839), respectively.