Heterarthrus 22–24 hypopygia: 22 H. wuestneii DEI-GISHym20656 23 H. cuneifrons DEI-GISHym31984 24 H. fiora sp. nov. DEI-GISHym31976 25–28 valvulae 3 dorsal: 25 H. microcephalus DEI-GISHym11397 26 H. leucomela DEI-GISHym83894 27 H. ochropoda DEI-GISHym83895 28 H. vagans DEI-GISHym83896 29 H. leucomela ♀ DEI-GISHym83894 lateral 30, 31 H. ochropoda ♀ DEI-GISHym83895 lateral, dorsal 32 H. vagans ♀ DEI-GISHym83897 dorsal. Scale bar: 1mm.

 
 
  Part of: Liston A, Mutanen M, Viitasaari M (2019) On the taxonomy of Heterarthrus (Hymenoptera, Tenthredinidae), with a review of the West Palaearctic species. Journal of Hymenoptera Research 72: 83-126. https://doi.org/10.3897/jhr.72.39339