Figures 87-96 from: 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

Figures 87-96 - Penis valves of Pristiphora ruficornis group. 87 Pristiphora bifida DEI-GISHym80000 (arrow indicates a dorsal depression of the pseudoceps) 88 Pristiphora frigida NHRS-HEVA000003861 (arrow indicates a membranous fold near the tip of the ventro-apical spine) 89 Pristiphora confusa DEI-GISHym31265 90 Pristiphora confusa PR.460VV 91 Pristiphora subopaca DEI-GISHym80030, left penis valve 92 Pristiphora subopaca paratype http://id.luomus.fi/GL.5203 93 Pristiphora pusilla DEI-GISHym80029, left penis valve with strong dorsal depression of the pseudoceps (arrow) 94 Pristiphora pusilla DEI-GISHym80029, right penis valve with weak dorsal depression of the pseudoceps 95 Pristiphora opaca PR.459VV 96 Pristiphora opaca http://id.luomus.fi/GL.5206, paratype of Pristiphora amaura Lindqvist.