Figures 253-262 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 253-262 - Penis valves of Pristiphora. 253 biscalis DEI-GISHym31533 (arrow indicates protruding ventral margin of paravalva) 254 insularis DEI-GISHym20941 255 conjugata DEI-GISHym31542, reared from Populus sp. 256 monogyniae DEI-GISHym31590 257 conjugata DEI-GISHym80024, reared from Salix fragilis 258 exigua holotype 259 conjugata DEI-GISHym31544, reared from Salix pentandra 260 retusa DEI-GISHym20791 261 testacea DEI-GISHym31631 262 appendiculata DEI-GISHym31555.