The Japanese species of the genus Ecphylus Foerster, 1862 are reviewed. Three new species belonging to the subgenus Sactopus Ashmead, 1900, E. (S.) conformis sp. n., E. (S.) konishii sp. n. and E. (S.) subtropicalis sp. n., are described and illustrated. Ecphylus (S.) hattori Kono & Watanabe, 1935 is considered a valid species, distinctly separated from the Western Palaearctic E. (S.) caudatus Ruschka, 1916. A key to all Eastern Palaearctic species of Ecphylus is provided.
Sergey А. BelokobylskijJosé Vicente Falcó GaríRicardo Jiménez-Peydró
Sergey А. BelokobylskijKaoru Maetô
Sergey А. BelokobylskijKaoru Maetô
Sergey А. BelokobylskijCh.-Sh. Lin