Анотація:
Metapsyllaephagus theodosicus sp. nov from the Crimea is described. A key to eight Palearctic species the Encvrtid genus Metapsylaephagus Myartseva, 1980 (females) is given. Tne new species is closely related to M.lasnueueMyartseva from Armeniaand Turkmenistan, differing from ti by the following characters: length of the 1st and 2nd funicular segments of antennae is remarkably greater than their width; club a little longerthan total length ofthree preceding segments; the pale apical scape zone is more extended, occupying more than a 1 3 of the scape length.