18 P. albitibia DEI-GISHym31514, thorax in lateral view 19 P. luteipes DEI-GISHym80038, thorax in lateral view 20 P. astragali holotype, thorax in lateral view 21 P. leucopus DEI-GISHym31556, lateral 22 P. leucopus DEI-GISHym4989, lateral 23 P. luteipes DEI-GISHym80038, lateral 24 P. luteipes DEI-GISHym80038, flagellum 25 P. ruficornis DEI-GISHym31185, flagellum 26 P. armata DEI-GISHym11092 27 P. subopaca holotype, pterostigma (arrow) 28 P. opaca holotype, pterostigma (arrow) 29 P. ruficornis DEI-GISHym31185, pterostigma (arrow) 30 P. appendiculata DEI-GISHym31500, claw 31 P. opaca holotype, claw 32 P. subopaca holotype, claw 33 P. armata DEI-GISHym11554, claw 34 P. bifida DEI-GISHym31507, claw 35 P. frigida NHRS-HEVA000005006, flagellum with barely visible stout black setae (arrows) 36 P. pusilla DEI-GISHym80050, flagellum with clearly visible stout black setae.

  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