Diacritus Förster, 1869
Type species: Mesostenus rufipes Provancher, 1875 (= Mesoleptus muliebris Cresson, 1868); incl. by Davis, 1895
Phidias Snellen von Vollenhoven, 1868; preocc. by Rafinesque, 1815
Type species: Phidias aciculatus Vollenhoven, 1878; monobasic
Stenolabis Kriechbaumer, 1894
Type species: Stenolabis cingulata Kriechbaumer, 1894 (= Phidias aciculatus Vollenhoven, 1878); monobasic
Diacritus aciculatus japonicus Momoi, 1966: 2; 宮崎(尾股),鳥取(大山)
Diacritus aciculatus japonicus: Katayama, Watanabe &amo; Nakayama, 2012: 124; 栃木(那須塩原)
Diacritus aciculatus japonicus: Shimizu, 2014: 9; 新潟(妙高市)
分布:本,九
Diacritus incompletus Momoi, 1966: 1; 北海道(札幌),利尻島,長野(上高地)
Diacritus incompletus: Katayama, Matsumura & Watanabe, 2010: 153; 栃木(那須塩原市那須塩原スカイライン土平); モモイホソナガヒメバチ(新称)
分布:北,利,本