Pristiphora nigricans (Eversmann, 1847) Eversmann, 1847

Prous, Marko, Kramp, Katja & Liston 1, Veli VikbergAndrew, 2017, North-Western Palaearctic species of Pristiphora (Hymenoptera, Tenthredinidae), Journal of Hymenoptera Research 59, pp. 1-190 : 57

Pristiphora nigricans (Eversmann, 1847) comb. n. Figs 141, 223

Nematus nigricans Eversmann, 1847: 16. Lectotype ♀ (DEI-GISHym30030; here designated) in ZIN, examined. Type locality: prov. Casan [Republic of Tatarstan], Russia.

Nematus Anderschi [sic!] Zaddach, 1876: 62-63, syn. n. Holotype ♀ possibly destroyed ( Blank and Taeger 1998). Type locality: Uncertain, but possibly Tilsit, Kaliningrad Oblast, Russia. Note. The name anderschi has apparently not been used as valid more than 25 times during the last 50 years (we found 17 publications) and therefore Article 23.9.1 ( ICZN 1999) cannot be applied in this case.

Pristiphora inocreata Konow, 1902: 181, syn. n. Lectotype ♀ (GBIF-GISHym3923; designated by Oehlke and Wudowenz 1984 as “Holotypus”) in SDEI, examined. Type locality: Moravia, Czech Republic.

Pristiphora discolor Lindqvist, 1975: 13-14, syn. n. Holotype ♀ (GBIF-GISHym20870) in MZH, examined. Type locality: Popovo, Iljhonsk, Irkutsk Oblast, Russia.

Similar species.

The most similar species is P. pallidiventris . Females of P. nigricans have a completely pale metafemur and black terga 9 and 10, while in P. pallidiventris metafemur and terga 9-10 are completely pale or at least the metafemur is apically slightly black. The lancet and penis valve also show consistent differences (see the Key).

Genetic data.

Based on a COI barcode sequence of one confidently identified specimen (DEI-GISHym20619), P. nigricans belongs to the same BIN cluster (BOLD:AAU3334) as P. pallidiventris (Fig. 5). The nearest neighbour (BOLD:ACO0950, possibly P. pallidiventris , from China) is 2.26% different. No nuclear data available.

Host plants.

Sanguisorba sp. ( Verzhutskii 1981, as P. discolor ). Sanguisorba officinalis L. according to the label data of the holotype of discolor Lindqvist.

Distribution and material examined.

Palaearctic. Specimens studied are from Czech Republic, France, Germany, Kazakhstan, Russia (Irkutsk Oblast and Republic of Tatarstan), and Ukraine.