Pion
Pion Schiødte, 1839
Type species: Mesoleptus fortipes Gravenhorst, 1829; monobasic
Catoglyptus Holmgren, 1855; syn. by Townes (1945)
Type species: Mesoleptus fortipes Gravenhorst, 1829; designated by Viereck (1912)
Pion japonicum Watanabe, 2016 ハリオマルヒメバチ
Pion japonicum Watanabe, 2016: 290; 群馬（片品）,山形（真室川）,福井（池田,勝山,和泉,大野）,栃木（那須塩原）,山梨（北斗）,長野（小海,川上,王滝）,静岡（本川根,静岡）
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文献
Watanabe K (2016) First record of the genus Pion Schiodte, 1839 (Hymenoptera: Ichneumonidae: Ctenopelmatinae), from Japan, with description of a new species. Zootaxa, 4103(3): 289-294.