Figures 263-272 from: Prous M, Kramp K, Vikberg V, Liston A (2017) North-Western Palaearctic species of Pristiphora (Hymenoptera, Tenthredinidae). Journal of Hymenoptera Research 59: 1-190. https://doi.org/10.3897/jhr.29.12656

Figures 263-272 - Penis valves of Pristiphora. 263 armata PR.465VV 264 melanocarpa PR.425VV 265 leucopus GBIF-GISHym3246, syntype of Nematus crassicornis Hartig 266 ruficornis PR.462VV 267 bifida DEI-GISHym80000 (arrow indicates a dorsal depression of the pseudoceps) 268 confusa DEI-GISHym31265 269 subopaca DEI-GISHym80030, left penis valve 270 opaca PR.459VV 271 pusilla DEI-GISHym80029, left penis valve with strong dorsal depression of the pseudoceps (arrow) 272 staudingeri PR.352VV.