North-Western Palaearctic species of Pristiphora (Hymenoptera, Tenthredinidae) Author Prous, Marko Author Kramp, Katja Author Liston 1, Veli VikbergAndrew text Journal of Hymenoptera Research 2017 59 1 190 http://dx.doi.org/10.3897/jhr.59.12565 journal article http://dx.doi.org/10.3897/jhr.59.12565 1314-2607-59-1 598C5BB321364D91B522FA14D8874A52 Pristiphora albitibia (Costa, 1859) Figs 6, 20, 44, 188, 273 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. Synonymised with P. albitibia by Costa (1894) . 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). Synonymised with P. staudingeri auct. by Konow (1905) . Pristiphora aterrima Lindqvist, 1977: 92. Holotype ♀ (DEI-GISHym20896) in MZH, examined. Type locality: Tolyany, Usolje, Irkutsk, Russia. Pristiphora nigropuncticeps Haris, 2002: 75-76, syn. n. Holotype ♂ (DEI-GISHym80345; http://dx.doi.org/10.6084/m9.figshare.5057701) in HNHM, examined. Type locality: Nukht, Bogd Khan Mountain, Ulaanbaatar, Mongolia. Similar species. Externally, the most similar species are P. armata , P. confusa , P. leucopus , P. opaca , P. sootryeni , and P. subopaca , from which it is best distinguished by the structure of the lancet (Fig. 188), the penis valve (Fig. 273), and the colour of pterostigma (Fig. 40) (see the Key). Genetic data. Based on COI barcode sequences, specimens of this species are divided between two BIN clusters (BOLD:ACH1762 and BOLD:ADH0371) (Fig. 4). Minimum distance between the clusters is 4.6%. Based on nuclear data (four specimens and both genes combined), maximum within species divergence is 0.3% and the nearest neighbour is 0.8% different ( P. astragali or P. caraganae ). Two studied specimens (male and female) from Finland with a highly divergent barcode (BOLD:ADH0371; DEI-GISHym80018 and DEI-GISHym80357) are morphologically indistinguishable from other P. albitibia specimens and this is congruent with nuclear data (both genes) from the female DEI-GISHym80357 (divergence from the other three specimens is 0.1-0.3%). 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 ), V. baicalensis Turcz., V. unijuga A. Br. ( Verzhutskii 1981 , as P. puncticeps ). Rearing notes. See Vikberg (2006) . Distribution and material examined. Palaearctic. Specimens studied are from Estonia, Finland, Germany, Mongolia, Russia (Irkutsk Oblast), and Sweden.