Heterarthrus 33, 34 median mesoscutal lobes ♀: 33 H. ochropoda DEI-GISHym83895 34 H. leucomela DEI-GISHym31980 35, 36 head frontal ♂: 35 H. vagans DEI-GISHym11095 36 H. leucomela DEI-GISHym31981 37, 38 fore wing ♂: 37 H. ochropoda DEI-GISHym83898 38 H. microcephalus DEI-GISHym83899 39, 40 H. fiora sp. nov. ♀ holotype: 39 dorsal 40 head frontal. 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