Penis valves of Pristiphora ruficornis group. 77 P. appendiculata DEI-GISHym31555 78 P. albitibia DEI-GISHym20956 79 P. ruficornis PR.462VV 80 P. melanocarpa PR.425VV 81 P. ruficornis DEI-GISHym19636 82 P. melanocarpa PR.409VV 83 P. armata PR.465VV 84 P. leucopus PR.466VV reared ex ovo from Tilia sp. 85 P. armata DEI-GISHym80020 86 P. leucopus GBIF-GISHym3246 (syntype of Nematus crassicornis Hartig).

 
 
  Part of: Prous M, Vikberg V, Liston A, Kramp K (2016) North-Western Palaearctic species of the Pristiphora ruficornis group (Hymenoptera, Tenthredinidae). Journal of Hymenoptera Research 51: 1-54. https://doi.org/10.3897/jhr.51.9162