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 albitibia (Costa, 1859) Nematus albitibia Costa, 1859: 21. Syntype(s) ♂ possibly in MZUN, not examined. Type locality: Sila Grande, Calabria, Italy. Nematus puncticeps Thomson, 1863: 619. Syntypes ♀♂ in MZLU, examined. Type locality: Dalarne, Stockholm, Ostergoethland , Smaland , and Skane , Sweden. Nematus agilis Zaddach in Brischke, 1884: 142. Primary homonym of Nematus agilis Cresson, 1880 [= Euura agilis (Cresson, 1880)]. 3 ♂♀ syntypes possibly destroyed ( Blank and Taeger 1998 ). Type locality: not specified, but probably in former East Prussia (now Kaliningrad Oblast of Russia, or Poland). Pristiphora aterrima Lindqvist, 1977: 92, syn. n. Holotype ♀ (DEI-GISHym20896) in MZH, examined. Type locality: Tolyany, Usolje, Irkutsk, Russia. Similar species. Externally, the most similar species are P. armata , P. confusa , P. leucopus , P. opaca , and P. subopaca , from which it is best distinguished by the structure of the saw (Figs 41-42 ) and the penis valve (Fig. 78 ). On the inner surface of the lancet there are small spiny pectines (or dentes semicirculares) that reach the sclerora, which are absent in other similar species. The saw (Fig. 42 ) and external morphology of the holotype of Pristiphora aterrima Lindqvist, 1977 is not distinguishable from the studied P. albitibia specimens and therefore we synonymise Pristiphora aterrima with Pristiphora albitibia . Genetic data. Based on COI barcode sequences, P. albitibia belongs to its own BIN cluster (BOLD:ACH1762) (Fig. 1 ). The nearest neighbour (BOLD:AAL8277, P. astragali ?) is 2.06% different. Although there are no nuclear TPI sequences for any of the genetically closest (according to COI barcodes) species ( P. astragali and P. sootryeni ), the three sequenced specimens of P. albitibia are nearly identical to each other (one specimen differed by one nucleotide from the other two) and clearly different from the other sequenced species (Fig. 2 ). Host plants. Vicia cracca L. ( Stein 1885 , as P. puncticeps ; Vikberg 2006 ), V. hirsuta (L.) Gray, V. tetrasperma (L.) Schreb. ( Kangas 1985 , as P. puncticeps ), Vicia baicalensis Turcz., Vicia unijuga A. Br. ( Verzhutskii 1981 , as P. puncticeps ). Distribution and material examined. Palaearctic. Specimens studied are from Estonia , Finland , Germany , Russia , and Sweden .