North-Western Palaearctic species of the Pristiphora ruficornis group (Hymenoptera, Tenthredinidae) Author Prous, Marko https://orcid.org/0000-0002-5329-7608 Senckenberg Deutsches Entomologisches Institut, Eberswalder Strasse 90, 15374 Muencheberg, Germany & Department of Zoology, Institute of Ecology and Earth Sciences, University of Tartu, Vanemuise 46, 51014 Tartu, Estonia mprous@ut.ee Author Vikberg, Veli Liinalammintie 11 as. 6, FI- 14200 Turenki, Finland Author Liston, Andrew Senckenberg Deutsches Entomologisches Institut, Eberswalder Strasse 90, 15374 Muencheberg, Germany Author Kramp, Katja Senckenberg Deutsches Entomologisches Institut, Eberswalder Strasse 90, 15374 Muencheberg, Germany text Journal of Hymenoptera Research 2016 2016-08-29 51 1 54 http://dx.doi.org/10.3897/jhr.51.9162 journal article http://dx.doi.org/10.3897/jhr.51.9162 1314-2607-51-1 B3D68EDB9CF844A3BC43E9C2D6626BD7 FFCF966B691BFFC1FF950C14486D5B5D 147922 Pristiphora sootryeni Lindqvist, 1955 Pristiphora sootryeni Lindqvist, 1955: 46. Holotype ♀ in TROM, not examined. Type locality: Smastroemmen , Finnmark, Norway. Similar species. Based on the external morphology, the most similar species are P. astragali , P. confusa , P. opaca , P. pusilla , P. staudingeri , and P. subopaca , from which it is best distinguished by the structure of the lancet (Fig. 45 ). The lancet has weak ctenidia (weak or well-developed in the others) and on the inner surface of the lancet there are small spiny pectines (or dentes semicirculares) that reach the sclerora (present also in P. astragali ). However, differences from P. astragali are rather small. Morphologically, the subapical tooth of the claws tends to be larger, the apical serrulae of the lancet are longer, and the number of ctenidia on the lancet is larger than in P. astragali (Figs 43-44 ; Vikberg 2006 ). Male unknown. Genetic data. Based on a COI barcode sequence of one confidently identified specimen from Kuusamo (Finland; DEI-GISHym80036), it belongs to the same BIN cluster as P. astragali (BOLD:AAL8292), which in the BOLD database includes two other unidentified specimens from Manitoba, Canada (Fig. 1 ). The nearest neighbour (BOLD:AAL8277) is 2.40% different. BIN cluster BOLD:AAL8277 might include P. astragali , as one of the included specimens in BOLD database was identified by Matti Viitasaari as " Pristiphora nr. astragali ". Amplification of TPI failed. Host plants. Oxytropis campestris (L.) DC. ( Lindqvist 1973 ; Vikberg 2006 ). Distribution and material examined. Western Palaearctic. Specimens studied are from Finland .