Mesostenus obtusus Momoi, 1966
Mesostenus obtusus Momoi, 1966: 165 .
Specimen examined. JAPAN: KPM-NK 69453, F, Kumamoto Pref., Aso City, 21. VII. 2013, R. Murao leg.
Distribution. Japan (Hokkaido, Honshu and Kyushu*).
Remarks. This is the first record of this species from Kyushu. This species resembles M. suigensis Uchida, 1930, from Korea in the black body, the sculptured frons and the ovipositor with an obtuse apex, but it can be distinguished by the antenna with a white band (without a white band in M. suigensis). Male of this species is unknown.