Pristiphora tetrica (Zaddach, 1883)

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 : 42

Pristiphora tetrica (Zaddach, 1883) Figs 186, 301

Nematus tetricus Zaddach in Brischke, 1883b: 148-149. Holotype ♀ possibly destroyed ( Blank and Taeger 1998). Type locality: Thüringen, Germany.

Nematus velatus Zaddach in Brischke, 1883b: 149. Holotype ♀ was not found in ZSM ( Liston and Späth 2008). Type locality: Baiern, Germany. Synonymised with P. tetrica by Konow (1902).

Pristiphora nievesi Haris, 2004: 164-165. Holotype ♀ (DEI-GISHym20461) in MNCN, examined. Type locality: El Ventorillo, Madrid, Spain.

Similar species.

The most similar species are P. depressa and P. subbifida , from which it can be distinguished by having a black supraclypeal area (pale in P. depressa and P. subbifida ) and usually black head in dorsal view (at least with small pale spots in P. depressa ). See Liston and Späth (2008) for more details.

Genetic data.

Based on COI barcode sequences, specimens of this species are divided between five BIN clusters (BOLD:ACL2117, BOLD:ABA3515, BOLD:ACL2098, BOLD:ACL2099, BOLD:ACL2100) (Fig. 3), four of which (i.e. not BOLD:ACL2117) were previously identified as P. nievesi Haris. Minimum distances between these clusters are 1.72%-1.90%. All these clusters form a monophyletic group (Fig. 3) and we treat them as one species, because there is a continuous variation in external morphological characters used to separate P. nievesi from P. tetrica , and no clear differences in penis valves and lancets (see Liston et al. 2015). Based on nuclear data (two specimens and both genes combined), within species divergence is 0.2% and the nearest neighbour is 1.7% different ( P. cretica Schedl, 1981, a species not treated here).

Host plants.

Acer pseudoplatanus L. ( Macek 2012b) and A. sempervirens L. ( Liston et al. 2015).

Distribution and material examined.

West Palaearctic. Specimens studied are from France, Germany, Greece, Italy, Morocco, Russia (Karachay-Cherkess Republic), and Spain.