Pristiphora Latreille, 1810

Prous, Marko, Liston, Andrew, Kramp, Katja, Savina, Henri, Vardal, Hege & Taeger, Andreas, 2019, The West Palaearctic genera of Nematinae (Hymenoptera, Tenthredinidae), ZooKeys 875, pp. 63-127 : 63

Pristiphora Latreille, 1810

Pristiphora Latreille, 1810: 294, 435. Type species: Pteronus testaceus Jurine, 1807 [= Pristiphora testacea (Jurine, 1807], by original designation.

Dinematus Lacourt, 2006: 237-238. Type species: Dinematus krausi Lacourt, 2006, by original designation. Syn. nov.

Notes.

As already suggested by Prous et al. (2017), Dinematus krausi probably belongs to the Pristiphora depressa species group: see also comments under the species name, below. One of the main reasons for the erection of a genus separate from Pristiphora for krausi , was the presence of vein 2r-rs in the right fore wing of the holotype (this vein absent in the left wing). The presence of this vein in Pristiphora is rather rare but has been observed in at least four other West Palaearctic species: helvetica ( Benson 1960b), malaisei , robusta, and staudingeri ( Prous et al. 2014, 2017). Within Pristiphora , these species are only distantly related. In our opinion, no characters exist which will reliably distinguish Dinematus from Pristiphora , and we therefore propose their synonymy. For further synonymy of genus group names with Pristiphora see Taeger et al. (2010) but note that Stauronematus is now considered to be a separate genus ( Prous et al. 2014). The north-west European species groups and the majority of species of Pristiphora were recently revised by Prous et al. (2016, 2017, 2018).